118 results on '"Zanardo, M"'
Search Results
2. Sustainable radiology departments: A European survey to explore radiographers’ perceptions of environmental and energy sustainability issues
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Roletto, A., Catania, D., Rainford, L., Savio, A., Zanardo, M., Bonfitto, G.R., and Zanoni, S.
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- 2024
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3. An investigation into academic career pathways across Radiography education centres internationally
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Zanardo, M., Rainford, L., McGee, A., Dowley, A., McNulty, J.P., Buissink, C., and O'Connor, M.
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- 2023
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4. The impact of COVID-19 upon student radiographers and clinical training
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Rainford, L.A., Zanardo, M., Buissink, C., Decoster, R., Hennessy, W., Knapp, K., Kraus, B., Lanca, L., Lewis, S., Mahlaola, T.B., McEntee, M., O'Leary, D., Precht, H., Starc, T., and McNulty, J.P.
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- 2021
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5. Technique and protocols for cardiothoracic time-resolved contrast-enhanced magnetic resonance angiography sequences: a systematic review
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Zanardo, M., Sardanelli, F., Rainford, L., Monti, C.B., Murray, J.G., Secchi, F., and Cradock, A.
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- 2021
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6. Inflammation and nutritional status as predictors of physical performance and strength loss during hospitalization
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Rossi, A P, Zanandrea, V, Zoico, E, Zanardo, M, Caliari, C, Confente, S, Gabriele, S, Mazzali, G, Fantin, F, and Zamboni, M
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- 2016
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7. Impact of hypertension on vascular remodeling in patients with psoriatic arthritis
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Puato, M, Ramonda, R, Doria, A, Rattazzi, M, Faggin, E, Balbi, G, Zanon, M, Zanardo, M, Tirrito, C, Lorenzin, M, Modesti, V, Plebani, M, Zaninotto, M, Punzi, L, and Pauletto, P
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- 2014
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8. Blood pressure control has distinct effects on executive function, attention, memory and markers of cerebrovascular damage: Relevance for evaluating the effect of antihypertensive treatment on cognitive domains
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Semplicini, A, Inverso, G, Realdi, A, Macchini, L, Maraffon, M, Puato, M, Zanardo, M, Tirrito, C, Amodio, P, Schiff, S, Mapelli, D, and Manara, R
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- 2011
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9. Management of patients with suspected or confirmed COVID-19, in the radiology department
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Zanardo, M., Martini, C., Monti, C.B., Cattaneo, F., Ciaralli, C., Cornacchione, P., and Durante, S.
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- 2020
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10. Vascular Remodeling After Carotid Artery Stenting
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Puato, M., Piergentili, C., Zanardo, M., Rocchi, R., Giordan, M., Cardaioli, P., and Pauletto, P.
- Published
- 2007
11. National survey for investigating the diagnostic imaging departments reorganization and management during the COVID-19 pandemic
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Roletto, Andrea, Catania, D, Ciaralli, C, Cozzi, A, Di Feo, D, Durante, S, Pasini, D, Raiano, N, and Zanardo, M
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- 2022
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12. Analysis and management of the COVID-19 pandemic impact on a multispecialty diagnostic imaging department
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Roletto, Andrea, Zanardo, M, Cozzi, A, Schiaffino, S, Tritella, S, Susini, F, Gerra, F, and Sardanelli, F
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- 2022
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13. Pain distraction during awake low anterior resection and Cuddle Delivery initiative for inpatient: frugal procedural options to support surgery in the COVID-19 era.
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ROMANZI, A., GABAGLIO, M., MILANESI, M., PUTORTÌ, A., ROSSI, F., SCOLARO, R., VIGNATI, B., ZACCARELLI, A., ZANARDO, M., and VANNELLI, A.
- Abstract
OBJECTIVE: Since minimally invasive surgery and general anesthesia are both aerosol-generating procedures, their use became controversial during the outbreak of coronavirus disease 2019 (COVID-19). Moreover, social distancing resulted in serious psychological consequences for inpatients. This case report investigates pain distraction during awake laparotomy, as well as new possibilities for emotional postoperative support to inpatients. PATIENTS AND METHODS: A 72-year-old man affected by middle rectal adenocarcinoma underwent lower anterior resection plus total mesorectal excision under combined spinal-epidural anesthesia. A 3D mobile theatre (3DMT) was intraoperatively used for pain distraction. A postoperative "Cuddle delivery" service was instituted: video-messages from relatives and close friends were delivered daily to the patient through the 3DMT. Emotional correlations were investigated through a clinical interview by the psychologist of our Hospital. RESULTS: Intraoperative, as well as postoperative pain, resulted well-controlled: visual analogue scale (VAS) ≤3. Conversion to general anesthesia and postoperative intensive support/monitoring were unnecessary. The "Cuddle delivery" initiative positively fed our patient's mood and attitude, strengthening his bond to life. CONCLUSIONS: During pandemic, awake laparotomy under loco-regional anesthesia may be a crucial option in delivering acute care surgery to selected patients when intensive care beds are unavailable. Our procedure introduces potential ways to optimize this approach. [ABSTRACT FROM AUTHOR]
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- 2021
14. P132: Predictors of physical performance and strength loss during hospitalization
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Rossi, A.P., Fantin, F., Zanandrea, V., Sant, S., Confente, S., Caliari, C., Bertassello, P., Zanardo, M., Zoico, E., Zivelonghi, A., and Zamboni, M.
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- 2014
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15. Prognostic value of different sarcopenic obesity definitions for worsening disability in elderly men and women
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Rossi, A.P., Mastrandrea, V., Bertassello, P., Mazzali, G., Bissoli, L., Zanardo, M., Confente, S., Fantin, F., and Zamboni, M.
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- 2013
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16. Pelvic lymphedema in rectal cancer: a magnetic resonance feasibility study: a preliminary report.
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VANNELLI, A., BASILICO, V., ZANARDO, M., CAIZZONE, A., ROSSI, F., BATTAGLIA, L., and SCARAMUZZA, D.
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BACKGROUND: Functional pelvic disorders in patients undergoing conservative surgical approach for rectal cancer are considered a major public health issue and represent one third of cost of colorectal cancer. We investigated the hypothesis that lymphadenectomy, involves the pelvic floor results in a localized hides or silent pelvic lymphedema characterized by symptoms without signs. PATIENTS AND METHODS: We examined 13 colo-rectal cancer patients: five intra-peritoneal adenocarcinoma: 1 sigmoid and 4 upper third rectal cancer (1 male and 3 female) and 9 extra-peritoneal adenocarcinoma: 3 middle and 5 lower third rectal cancer (4 male and 5 female) using 1.5-T magnetic resonance, one week before and twelve months after discharged from hospital. RESULTS: Lymphedema was discovered on post-operative magnetic resonance imaging of all 9 patients with extra-pertitoneal cancer, whereas preoperative magnetic resonance imaging as well as a post-operative examination of 4 intra-peritoneal adenocarcinoma, revealed no evidence of lymphedema. Unlike the common clinical skin signs that typify all other sites of lymphedema, pelvic lymphedema is hides or silent, with no skin changes or any single symptom manifested. Magnetic resonance imaging showed that pelvic illness alone is accompanied by lymphedema related exclusively to venous congestion, and accumulation of liquid in adipose tissue or lipedema. CONCLUSIONS: Alteration of the pelvic lymphatic network during pelvic surgery can lead to lymphedema and, pelvic floor disease. Patients should be routinely examined for the possibility of developing this post-surgical syndrome and further studies are needed to establish diagnosis and to evaluate treatment preferences. [ABSTRACT FROM AUTHOR]
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- 2013
17. 378 IMPACT OF ANTI-TNFALPHA THERAPY ON SUBCLINICAL ATHEROSCLEROSIS IN PATIENTS WITH PSORIATIC ARTHRITIS
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Puato, M., Zanardo, M., Ramonda, R., Faggin, E., Zanon, M., Balbi, G., Lo Nigro, A., Rattazzi, M., Doria, A., and Pauletto, P.
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- 2011
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18. MS482 SUBCLINICAL ATHEROSCLEROSIS IN PATIENTS WITH PSORIATIC ARTHRITIS: THE IMPACT OF BLOOD PRESSURE
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Puato, M., Zanardo, M., Balbi, G., Zanon, M., Faggin, E., Rattazzi, M., Ramonda, R., Lo Nigro, A., Doria, A., and Pauletto, P.
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- 2010
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19. Does HCV infection have a more favourable outcome in Tanzanian people?: Data from the Lugalawa study
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Puato, M., Migliorato, I., Tirrito, C., Ruvoletto, M., Zanardo, M., Pauletto, P., and Pontisso, P.
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- 2007
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20. WO8-OR-5 A 5-YEAR PERSPECTIVE STUDY ON ULTRASOUND CAROTID INTIMA-MEDIA THICKNESS IN GRADE I HYPERTENSIVES
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Pauletto, P., Puato, M., Zanardo, M., Rattazzi, M., Winnicki, M., Longo, D., Dorigatti, F., and Palatini, P.
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- 2007
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21. Gastric cancer and simultaneous care: Preliminary report about the take charge approach.
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Putortì, A., Sabatino, G., Murmura, C., Zanardo, M., and Vannelli, A.
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STOMACH cancer patients ,STOMACH cancer treatment ,ONCOLOGIC surgery ,MEDICAL care - Published
- 2016
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22. The GREENWATER study: patients' green sensitivity and potential recovery of injected contrast agents.
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Zanardo M, Ambrogi F, Asmundo L, Cardani R, Cirillo G, Colarieti A, Cozzi A, Cressoni M, Dambra I, Di Leo G, Monti CB, Nicotera L, Pomati F, Renna LV, Secchi F, Versuraro M, Vitali P, and Sardanelli F
- Abstract
Objectives: The environmental footprint of iodinated contrast agents (ICAs) and gadolinium-based contrast agents (GBCAs) is noteworthy. This study assesses: (1) patients' "green sensitivity" as measured by their acceptance in a sustainability study and (2) the resulting potential reduction of contrast residuals in wastewater., Materials and Methods: After ethical approval, participants scheduled for administration of ICAs or GBCAs for diagnostic purposes were enrolled in this prospective observational study from July 2022 to October 2023. They were asked to prolong their hospital stay by up to 60 min to collect their first urine in dedicated canisters, thereby measuring the recovery rates of ICAs and GBCAs as found/theoretical ratio of concentrations. Mann-Whitney U, χ
2 tests, and multivariable regression analysis were used., Results: Patients scheduled for contrast-enhanced CT or MRI (n = 455) were screened; 422 (92.7%) accepted to participate. We enrolled 212 patients administered with ICAs and 210 administered with GBCAs. The median recovery rate was 51.2% (interquartile range 29.2-77.9%) for ICAs and 12.9% (9.0-19.3%) for GBCAs. At multivariable analysis, a significant effect of patient age (ICAs, p = 0.001; GBCAs, p = 0.014), urine volume (p < 0.001 for both), and time interval from contrast administration to urine collection (p < 0.001 for both) on recovery rates was found for both contrast agents; injected contrast volume (p = 0.046) and saline flushing usage (p = 0.008) showed a significant effect only for ICAs., Conclusion: The high patient enrollment compliance (93%) and potential recovery rates of 51% (ICAs) and 13% (GBCAs) play in favor of sustainable practices in reducing the environmental footprint of contrast agents., Key Points: Question How many patients are willing to extend their stay in radiology by up to 60 min to help reduce the environmental impact of contrast agents? Findings Over 90% of screened patients agreed to extend their stay by up to 60 min and collect their urine in dedicated containers. Clinical relevance Patients demonstrated a high willingness to cooperate in reducing the environmental impact of contrast agents, allowing for a potential recovery of approximately 51% for iodinated and 13% for gadolinium-based contrast agents., (© 2024. The Author(s), under exclusive licence to European Society of Radiology.)- Published
- 2024
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23. Impact of AI on radiology: a EuroAIM/EuSoMII 2024 survey among members of the European Society of Radiology.
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Zanardo M, Visser JJ, Colarieti A, Cuocolo R, Klontzas ME, Pinto Dos Santos D, and Sardanelli F
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In order to assess the perceptions and expectations of the radiology staff about artificial intelligence (AI), we conducted an online survey among ESR members (January-March 2024). It was designed considering that conducted in 2018, updated according to recent advancements and emerging topics, consisting of seven questions regarding demographics and professional background and 28 AI questions. Of 28,000 members contacted, 572 (2%) completed the survey. AI impact was predominantly expected on breast and oncologic imaging, primarily involving CT, mammography, and MRI, and in the detection of abnormalities in asymptomatic subjects. About half of responders did not foresee an impact of AI on job opportunities. For 273/572 respondents (48%), AI-only reports would not be accepted by patients; and 242/572 respondents (42%) think that the use of AI systems will not change the relationship between the radiological team and the patient. According to 255/572 respondents (45%), radiologists will take responsibility for any AI output that may influence clinical decision-making. Of 572 respondents, 274 (48%) are currently using AI, 153 (27%) are not, and 145 (25%) are planning to do so. In conclusion, ESR members declare familiarity with AI technologies, as well as recognition of their potential benefits and challenges. Compared to the 2018 survey, the perception of AI's impact on job opportunities is in general slightly less optimistic (more positive from AI users/researchers), while the radiologist's responsibility for AI outputs is confirmed. The use of large language models is declared not only limited to research, highlighting the need for education in AI and its regulations. CRITICAL RELEVANCE STATEMENT: This study critically evaluates the current impact of AI on radiology, revealing significant usage patterns and clinical implications, thereby guiding future integration strategies to enhance efficiency and patient care in clinical radiology. KEY POINTS: The survey examines ESR member's views about the impact of AI on radiology practice. AI use is relevant in CT and MRI, with varying impacts on job roles. AI tools enhance clinical efficiency but require radiologist oversight for patient acceptance., (© 2024. The Author(s).)
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- 2024
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24. Ischemic core detection threshold of computed tomography perfusion (CTP) in acute stroke.
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Asmundo L, Zanardo M, Cressoni M, Ambrogi F, Bet L, Giatsidis F, Di Leo G, Sardanelli F, and Vitali P
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- Humans, Male, Aged, Female, Retrospective Studies, Middle Aged, Aged, 80 and over, Contrast Media, Brain Ischemia diagnostic imaging, Diffusion Magnetic Resonance Imaging methods, Ischemic Stroke diagnostic imaging, Ischemic Stroke drug therapy, Tomography, X-Ray Computed methods
- Abstract
Purpose: This study aimed to determine the accuracy of detecting ischemic core volume using computed tomography perfusion (CTP) in patients with suspected acute ischemic stroke compared to diffusion-weighted magnetic resonance imaging (DW-MRI) as the reference standard., Methods: This retrospective monocentric study included patients who underwent CTP and DW-MRI for suspected acute ischemic stroke. The ischemic core size was measured at DW-MRI. The detectability threshold volume was defined as the lowest volume detected by each method. Clinical data on revascularization therapy, along with the clinical decision that influenced the choice, were collected. Volumes of the ischemic cores were compared using the Mann-Whitney U test., Results: Of 83 patients who underwent CTP, 52 patients (median age 73 years, IQR 63-80, 36 men) also had DW-MRI and were included, with a total of 70 ischemic cores. Regarding ischemic cores, only 18/70 (26%) were detected by both CTP and DW-MRI, while 52/70 (74%) were detected only by DW-MRI. The median volume of the 52 ischemic cores undetected on CTP (0.6 mL, IQR 0.2-1.3 mL) was significantly lower (p < 0.001) than that of the 18 ischemic cores detected on CTP (14.2 mL, IQR 7.0-18.4 mL). The smallest ischemic core detected on CTP had a volume of 5.0 mL. Among the 20 patients with undetected ischemic core on CTP, only 10% (2/20) received thrombolysis treatment., Conclusions: CTP maps failed in detecting ischemic cores smaller than 5 mL. DW-MRI remains essential for suspected small ischemic brain lesions to guide a correct treatment decision-making., (© 2024. Italian Society of Medical Radiology.)
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- 2024
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25. Deep transfer learning for detection of breast arterial calcifications on mammograms: a comparative study.
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Mobini N, Capra D, Colarieti A, Zanardo M, Baselli G, and Sardanelli F
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- Humans, Female, Retrospective Studies, Middle Aged, Aged, Adult, Breast diagnostic imaging, Vascular Calcification diagnostic imaging, Calcinosis diagnostic imaging, Radiographic Image Interpretation, Computer-Assisted methods, Mammography methods, Deep Learning, Breast Diseases diagnostic imaging
- Abstract
Introduction: Breast arterial calcifications (BAC) are common incidental findings on routine mammograms, which have been suggested as a sex-specific biomarker of cardiovascular disease (CVD) risk. Previous work showed the efficacy of a pretrained convolutional network (CNN), VCG16, for automatic BAC detection. In this study, we further tested the method by a comparative analysis with other ten CNNs., Material and Methods: Four-view standard mammography exams from 1,493 women were included in this retrospective study and labeled as BAC or non-BAC by experts. The comparative study was conducted using eleven pretrained convolutional networks (CNNs) with varying depths from five architectures including Xception, VGG, ResNetV2, MobileNet, and DenseNet, fine-tuned for the binary BAC classification task. Performance evaluation involved area under the receiver operating characteristics curve (AUC-ROC) analysis, F
1 -score (harmonic mean of precision and recall), and generalized gradient-weighted class activation mapping (Grad-CAM++) for visual explanations., Results: The dataset exhibited a BAC prevalence of 194/1,493 women (13.0%) and 581/5,972 images (9.7%). Among the retrained models, VGG, MobileNet, and DenseNet demonstrated the most promising results, achieving AUC-ROCs > 0.70 in both training and independent testing subsets. In terms of testing F1 -score, VGG16 ranked first, higher than MobileNet (0.51) and VGG19 (0.46). Qualitative analysis showed that the Grad-CAM++ heatmaps generated by VGG16 consistently outperformed those produced by others, offering a finer-grained and discriminative localization of calcified regions within images., Conclusion: Deep transfer learning showed promise in automated BAC detection on mammograms, where relatively shallow networks demonstrated superior performances requiring shorter training times and reduced resources., Relevance Statement: Deep transfer learning is a promising approach to enhance reporting BAC on mammograms and facilitate developing efficient tools for cardiovascular risk stratification in women, leveraging large-scale mammographic screening programs., Key Points: • We tested different pretrained convolutional networks (CNNs) for BAC detection on mammograms. • VGG and MobileNet demonstrated promising performances, outperforming their deeper, more complex counterparts. • Visual explanations using Grad-CAM++ highlighted VGG16's superior performance in localizing BAC., (© 2024. The Author(s).)- Published
- 2024
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26. MRI-derived extracellular volume as a biomarker of cancer therapy cardiotoxicity: systematic review and meta-analysis.
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Folco G, Monti CB, Zanardo M, Silletta F, Capra D, Secchi F, and Sardanelli F
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- Humans, Biomarkers metabolism, Cardiotoxicity diagnostic imaging, Cardiotoxicity etiology, Magnetic Resonance Imaging methods, Neoplasms drug therapy, Neoplasms diagnostic imaging, Antineoplastic Agents adverse effects
- Abstract
Objectives: MRI-derived extracellular volume (ECV) allows characterization of myocardial changes before the onset of overt pathology, which may be caused by cancer therapy cardiotoxicity. Our purpose was to review studies exploring the role of MRI-derived ECV as an early cardiotoxicity biomarker to guide timely intervention., Materials and Methods: In April 2022, we performed a systematic search on EMBASE and PubMed for articles on MRI-derived ECV as a biomarker of cancer therapy cardiotoxicity. Two blinded researchers screened the retrieved articles, including those reporting ECV values at least 3 months from cardiotoxic treatment. Data extraction was performed for each article, including clinical and technical data, and ECV values. Pooled ECV was calculated using the random effects model and compared among different treatment regimens and among those who did or did not experience overt cardiac dysfunction. Meta-regression analyses were conducted to appraise which clinical or technical variables yielded a significant impact on ECV., Results: Overall, 19 studies were included. Study populations ranged from 9 to 236 patients, for a total of 1123 individuals, with an average age ranging from 12.5 to 74 years. Most studies included patients with breast or esophageal cancer, treated with anthracyclines and chest radiotherapy. Pooled ECV was 28.44% (95% confidence interval, CI, 26.85-30.03%) among subjects who had undergone cardiotoxic cancer therapy, versus 25.23% (95%CI 23.31-27.14%) among those who had not (p = .003)., Conclusion: A higher ECV in patients who underwent cardiotoxic treatment could imply subclinical changes in the myocardium, present even before overt cardiac pathology is detectable., Clinical Relevance Statement: The ability to detect subclinical changes in the myocardium displayed by ECV suggests its use as an early biomarker of cancer therapy-related cardiotoxicity., Key Points: • Cardiotoxicity is a common adverse effect of cancer therapy; therefore, its prompt detection could improve patient outcomes. • Pooled MRI-derived myocardial extracellular volume was higher in patients who underwent cardiotoxic cancer therapy than in those who did not (28.44% versus 25.23%, p = .003). • MRI-derived myocardial extracellular volume represents a potential early biomarker of cancer therapy cardiotoxicity., (© 2023. The Author(s).)
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- 2024
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27. The environmental impact of energy consumption and carbon emissions in radiology departments: a systematic review.
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Roletto A, Zanardo M, Bonfitto GR, Catania D, Sardanelli F, and Zanoni S
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- Humans, Environment, Carbon Footprint, Radiology Department, Hospital
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Objectives: Energy consumption and carbon emissions from medical equipment like CT/MRI scanners and workstations contribute to the environmental impact of healthcare facilities. The aim of this systematic review was to identify all strategies to reduce energy use and carbon emissions in radiology., Methods: In June 2023, a systematic review (Medline/Embase/Web of Science) was performed to search original articles on environmental sustainability in radiology. The extracted data include environmental sustainability topics (e.g., energy consumption, carbon footprint) and radiological devices involved. Sustainable actions and environmental impact in radiology settings were analyzed. Study quality was assessed using the QualSyst tool., Results: From 918 retrieved articles, 16 met the inclusion criteria. Among them, main topics were energy consumption (10/16, 62.5%), life-cycle assessment (4/16, 25.0%), and carbon footprint (2/16, 12.5%). Eleven studies reported that 40-91% of the energy consumed by radiological devices can be defined as "nonproductive" (devices "on" but not working). Turning-off devices during idle periods 9/16 (56.2%) and implementing workflow informatic tools (2/16, 12.5%) were the sustainable actions identified. Energy-saving strategies were reported in 8/16 articles (50%), estimating annual savings of thousand kilowatt-hours (14,180-171,000 kWh). Cost-savings were identified in 7/16 (43.7%) articles, ranging from US $9,225 to 14,328 per device. Study quality was over or equal the 80% of high-quality level in 14/16 (87.5%) articles., Conclusion: Energy consumption and environmental sustainability in radiology received attention in literature. Sustainable actions include turning-off radiological devices during idle periods, favoring the most energy-efficient imaging devices, and educating radiological staff on energy-saving practices, without compromising service quality., Relevance Statement: A non-negligible number of articles - mainly coming from North America and Europe - highlighted the need for energy-saving strategies, attention to equipment life-cycle assessment, and carbon footprint reduction in radiology, with a potential for cost-saving outcome., Key Points: • Energy consumption and environmental sustainability in radiology received attention in the literature (16 articles published from 2010 to 2023). • A substantial portion (40-91%) of the energy consumed by radiological devices was classified as "non-productive" (devices "on" but not working). • Sustainable action such as shutting down devices during idle periods was identified, with potential annual energy savings ranging from 14,180 to 171,000 kWh., (© 2024. The Author(s).)
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- 2024
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28. Dual Energy X-ray Absorptiometry: Radiographer'S Role in Assessing Fracture Risk Assessment Tool (FRAX) Questionnaire Variables.
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Zanardo M, Mennini C, Glielmo P, Fusco S, Albano D, and Messina C
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- Humans, Female, Absorptiometry, Photon, Bone Density, Risk Assessment methods, Risk Factors, Surveys and Questionnaires, Osteoporosis complications, Fractures, Bone, Osteoporotic Fractures diagnostic imaging, Osteoporotic Fractures etiology
- Abstract
Background: The FRAX® algorithm is a tool used to calculate the 10-year probability of fracture in patients with osteoporosis and is based the assessment of several risk factors. We assessed the performance and accuracy of the completion of the FRAX® anamnestic questionnaire by the radiographer without impact on the clinical workflow., Methodology: We evaluated the accuracy of fracture risk calculation by the radiographer using the FRAX® algorithm before and after specific training. A total of 100 women were enrolled in the study. The radiographer preliminarily administered the FRAX® questionnaire to all subjects before the execution of the DXA examination. After the end of the examination, a radiologist administered the questionnaire to the patient. Women were divided into two groups: group A (pre-training) and group B (post-training). The radiographer in group A completed the FRAX® questionnaire for the patients before training. For group B, the same radiographer completed the FRAX® questionnaire after training. The results of the FRAX® questionnaire completed by radiographer were compared with that completed by the referring physician., Results: Before training, radiographer's accuracy ranged from 92% (question 7, alcohol consumption) to 36% (question 6, secondary osteoporosis). After training, accuracy values improved substantially, ranging from 100% to 92%. Analysis of the absolute values of FRAX® showed that in the pre-training group data tended to be overestimated by the radiographer, with both major and fractures probabilities being significantly higher when assessed by the radiographer (12% and 5.8%, respectively). After the training, there was a marked decrease in the variation between the FRAX® data calculated by the radiographer and the radiologist., Conclusions: The accuracy of fracture risk calculation by the radiographer using the FRAX® algorithm is significantly improved after a specific training period. This study demonstrates the importance of dedicated training radiographers on the FRAX® algorithm., Competing Interests: Declaration of Competing Interest None., (Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)
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- 2024
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29. Myocardial extracellular volume assessment at CT in hospitalized COVID-19 patients with regards to pulmonary embolism.
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Monti CB, Zanardo M, Capra D, Folco G, Silletta F, Secchi F, and Sardanelli F
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- Male, Humans, Middle Aged, Aged, Retrospective Studies, Myocardium, Tomography, X-Ray Computed methods, COVID-19, Heart Diseases, Pulmonary Embolism diagnostic imaging
- Abstract
Purpose: To evaluate myocardial status through the assessment of extracellular volume (ECV) calculated at computed tomography (CT) in patients hospitalized for novel coronavirus disease (COVID-19), with regards to the presence of pulmonary embolism (PE) as a risk factor for cardiac dysfunction., Method: Hospitalized patients with COVID-19 who underwent contrast-enhanced CT at our institution were retrospectively included in this study and grouped with regards to the presence of PE. Unenhanced and portal venous phase scans were used to calculate ECV by placing regions of interest in the myocardial septum and left ventricular blood pool. ECV values were compared between patients with and without PE, and correlations between ECV values and clinical or technical variables were subsequently appraised., Results: Ninety-four patients were included, 63/94 of whom males (67%), with a median age of 70 (IQR 56-76 years); 28/94 (30%) patients presented with PE. Patients with PE had a higher myocardial ECV than those without (33.5%, IQR 29.4-37.5% versus 29.8%, IQR 25.1-34.0%; p = 0.010). There were no correlations between ECV and patients' age (p = 0.870) or sex (p = 0.122), unenhanced scan voltage (p = 0.822), portal phase scan voltage (p = 0.631), overall radiation dose (p = 0.569), portal phase scan timing (p = 0.460), and contrast agent dose (p = 0.563)., Conclusions: CT-derived ECV could help identify COVID-19 patients at higher risk of cardiac dysfunction, especially when related to PE, to potentially plan a dedicated, patient-tailored clinical approach., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)
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- 2023
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30. Reducing contrast agent residuals in hospital wastewater: the GREENWATER study protocol.
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Zanardo M, Cozzi A, Cardani R, Renna LV, Pomati F, Asmundo L, Di Leo G, and Sardanelli F
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- Humans, Gadolinium urine, Hospitals, Prospective Studies, Reducing Agents, Observational Studies as Topic, Contrast Media, Wastewater
- Abstract
The potential enviromental impact of iodinated (ICAs) and gadolinium-based contrast agents (GBCAs) have recently come under scrutiny, considering the current nonselective wastewater treatment. However, their rapid excretion after intravenous administration could allow their potential recovery by targeting hospital sewage. The GREENWATER study aims to appraise the effective quantities of ICAs and GBCAs retrievable from patients' urine collected after computed tomography (CT) and magnetic resonance imaging (MRI) exams, selecting ICA/GBCA per-patient urinary excretion and patients' acceptance rate as study endpoints. Within a prospective, observational, single-centre, 1-year framework, we will enrol outpatients aged ≥ 18 years, scheduled to perform contrast-enhanced CT or MRI, willing to collect post-examination urine in dedicated canisters by prolonging their hospital stay to 1 h after injection. Collected urine will be processed and partially stored in the institutional biobank. Patient-based analysis will be performed for the first 100 CT and 100 MRI patients, and then, all analyses will be conducted on the pooled urinary sample. Quantification of urinary iodine and gadolinium will be performed with spectroscopy after oxidative digestion. The evaluation of the acceptance rate will assess the "environmental awareness" of patients and will aid to model how procedures to reduce ICA/GBCA enviromental impact could be adapted in different settings. Key points • Enviromental impact of iodinated and gadolinium-based contrast agents represents a growing point of attention.• Current wastewater treatment is unable to retrieve and recycle contrast agents.• Prolonging hospital stay may allow contrast agents retrieval from patients' urine.• The GREENWATER study will assess the effectively retrievable contrast agents' quantities.• The enrolment acceptance rate will allow to evaluate patients' "green sensitivity"., (© 2023. The Author(s).)
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- 2023
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31. The predictive role of right ventricular late gadolinium enhancement in patients with tetralogy of Fallot undergoing pulmonary valve replacement.
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Monti CB, Zanardo M, Capra D, Lastella G, Guarnieri G, Giambersio E, Pasqualin G, Sardanelli F, and Secchi F
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- Male, Humans, Adolescent, Young Adult, Adult, Female, Contrast Media, Gadolinium, Retrospective Studies, Tetralogy of Fallot surgery, Pulmonary Valve surgery
- Abstract
Background: Our purpose was to evaluate the correlations between right ventricular (RV) late gadolinium enhancement (LGE) at cardiac magnetic resonance (CMR) in patients with tetralogy of Fallot (ToF) scheduled for pulmonary valve replacement (PVR) and post-PVR functional data., Methods: We retrospectively reviewed ToF patients scheduled for PVR who underwent two CMR examinations at our institution, one before the procedure (CMR-0), including contrast-enhanced sequences, and one after the procedure (CMR-1). Functional left and RV data were obtained by segmenting short-axis stacks on both CMR examinations, and normalised variations were calculated by dividing differences between CMR-1 and CMR-0 by the intercurring time interval, whereas the RV scar burden was assessed on CMR-0 LGE sequences both semiquantitatively and quantitatively. Data were reported as median and interquartile range, differences were appraised with the Mann-Whitney U test, while correlations were assessed with Spearman's ρ., Results: Fifteen patients with a median age of 25 years (16-29), including 9 (60%) males, with a median time interval between CMR-0 and CMR-1 of 17 months (12-23), were retrospectively reviewed. The semiquantitative LGE score at CMR-0 was 7 (6-9), and LGE volume was 4.49 mL (3.70-5.78), covering 5.63% (4.92-7.00) of the RV. RV LGE score showed a moderate positive correlation with the normalised variation of RV stroke volume (ρ = 0.662, p = 0.007) and a borderline moderate positive correlation with the normalised variation of RV end-diastolic indexed volume (ρ = 0.513, p = 0.050)., Conclusions: The assessment of RV LGE before PVR may provide insights on post-PVR functional data, potentially facilitating a patient-tailored treatment pathway., (© 2023. The Author(s).)
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- 2023
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32. A Critical Appraisal of the Quality of Vertigo Practice Guidelines Using the AGREE II Tool: A EuroAIM Initiative.
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Doniselli FM, Zanardo M, Mazon M, Cuccarini V, Rovira A, Costa A, Sconfienza LM, and Arana E
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- Humans, Databases, Factual, Dizziness therapy, Vertigo therapy
- Abstract
Objectives: The aim of this review is to assess the methodological quality of guidelines for the management of vertigo and dizziness and to compare their recommendations, with specific focus on neuroimaging., Databases Reviewed: MEDLINE, EMBASE, National Guideline Clearinghouse, and National Institute for Health and Clinical Excellence database., Methods: In March 2022, a systematic search was performed to find practice guidelines of management of vertigo and dizziness. The evaluation of guidelines quality was performed independently by four authors using the AGREE II tool. We excluded from the results those guidelines that were not primarily focused on vertigo and dizziness, such as national/international guidelines in which vertigo and dizziness were only briefly mentioned., Results: Our strategy of literature search identified 161 studies, and 18 guidelines were selected for the appraisal. Only five guidelines reached the acceptance level in the overall result (at least 60%), with three of them reaching the highest scores (at least 80%). The highest scores were found in Domain 6 "Editorial Independence," Domain 1 "Scope and purpose," and Domain 4 "Clarity of presentation" (median value = 66%, 62%, and 61%, respectively). The remaining domains showed a low level of quality: Domain 2 "Stakeholder Involvement," Domain 3 "Rigor of development," and Domain 5 "Applicability" had median values of 27%, 27%, and 22%, respectively. The quality of these guidelines was very low, because of low involvement of multidisciplinary teams in writing guidelines recommendations., Conclusion: Considering all guidelines, only three had a "high" overall score, whereas 13 of 18 (72%) of them were rated as of "low" quality. Future guidelines might take this into account to improve clinical applicability., Competing Interests: The authors disclose no conflicts of interest., (Copyright © 2022, Otology & Neurotology, Inc.)
- Published
- 2022
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33. Colorectal medullary carcinoma: heterogeneous presentations of a rare clinico-pathological entity. Report of two cases.
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Romanzi A, Centonze G, Sabella G, Cattaneo L, Battiston C, Lorenzo ND, Milanesi M, Putortì A, Rossi F, Scolaro R, Zanardo M, Vignati B, and Vannelli A
- Subjects
- Humans, Prognosis, Carcinoma, Medullary diagnosis, Colorectal Neoplasms diagnosis, Colorectal Neoplasms pathology, Adenocarcinoma diagnosis, Adenocarcinoma pathology, Colonic Neoplasms diagnosis, Colonic Neoplasms pathology
- Abstract
Colorectal medullary carcinoma (CMC) is a rare subset of minimally differentiated carcinomas. CMC tend to be right-sided and present at an advanced stage. Despite this, distant metastases are rare at presentation. The liver and the regional lymph nodes represent the most common sites of metastases. Most of the time, CMCs exhibit mismatch repair deficiency and a strong association with high-level microsatellite instability. There is no conspicuous data regarding treatment strategies and short-term outcomes. CMC is supposed to be related to better prognosis compared to poorly-differentiated and undifferentiated colonic adenocarcinomas, but reports are controversial.This lesion, with heterogeneous presentations and unclear prognostic significance, may be unfamiliar to histopathologists and can lead to diagnostic uncertainty and overtreatments.Our aim is to renew the attention to this rare histological subtype through the report of two cases.
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- 2022
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34. The potential of predictive and prognostic breast MRI (P2-bMRI).
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Dietzel M, Trimboli RM, Zanardo M, Schultz-Wendtland R, Uder M, Clauser P, Sardanelli F, and Baltzer PAT
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- Breast diagnostic imaging, Female, Humans, Magnetic Resonance Imaging methods, Prognosis, Artificial Intelligence, Breast Neoplasms diagnostic imaging, Breast Neoplasms pathology
- Abstract
Magnetic resonance imaging (MRI) is an important part of breast cancer diagnosis and multimodal workup. It provides unsurpassed soft tissue contrast to analyse the underlying pathophysiology, and it is adopted for a variety of clinical indications. Predictive and prognostic breast MRI (P2-bMRI) is an emerging application next to these indications. The general objective of P2-bMRI is to provide predictive and/or prognostic biomarkers in order to support personalisation of breast cancer treatment. We believe P2-bMRI has a great clinical potential, thanks to the in vivo examination of the whole tumour and of the surrounding tissue, establishing a link between pathophysiology and response to therapy (prediction) as well as patient outcome (prognostication). The tools used for P2-bMRI cover a wide spectrum: standard and advanced multiparametric pulse sequences; structured reporting criteria (for instance BI-RADS descriptors); artificial intelligence methods, including machine learning (with emphasis on radiomics data analysis); and deep learning that have shown compelling potential for this purpose. P2-bMRI reuses the imaging data of examinations performed in the current practice. Accordingly, P2-bMRI could optimise clinical workflow, enabling cost savings and ultimately improving personalisation of treatment. This review introduces the concept of P2-bMRI, focusing on the clinical application of P2-bMRI by using semantic criteria., (© 2022. The Author(s) under exclusive licence to European Society of Radiology.)
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- 2022
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35. Adults with tetralogy of Fallot show specific features of cerebral small vessel disease: the BACH San Donato study.
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Melazzini L, Savoldi F, Chessa M, Vitali P, Zanardo M, Bertoldo EG, Fiolo V, Griffanti L, Carminati M, Frigiola A, Giamberti A, Secchi F, Callus E, Codari M, and Sardanelli F
- Subjects
- Adult, Brain diagnostic imaging, Case-Control Studies, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Cerebral Small Vessel Diseases diagnostic imaging, Tetralogy of Fallot complications, Tetralogy of Fallot surgery
- Abstract
Life expectancy in adults with congenital heart disease (ACHD) has increased. As these patients grow older, they experience aging-related diseases more than their healthy peers. To better characterize this field, we launched the multi-disciplinary BACH (Brain Aging in Congenital Heart disease) San Donato study, that aimed at investigating signs of brain injury in ACHD. Twenty-three adults with repaired tetralogy of Fallot and 23 age- and sex-matched healthy controls were prospectively recruited and underwent brain magnetic resonance imaging. White matter hyperintensities (WMHs) were segmented using a machine-learning approach and automatically split into periventricular and deep. Cerebral microbleeds were manually counted. A subset of 14 patients were also assessed with an extensive neuropsychological battery. Age was 41.78 ± 10.33 years (mean ± standard deviation) for patients and 41.48 ± 10.28 years for controls (p = 0.921). Albeit not significantly, total brain (p = 0.282) and brain tissue volumes (p = 0.539 for cerebrospinal fluid, p = 0.661 for grey matter, p = 0.793 for white matter) were lower in ACHD, while total volume (p = 0.283) and sub-classes of WMHs (p = 0.386 for periventricular WMHs and p = 0.138 for deep WMHs) were higher in ACHD than in controls. Deep WMHs were associated with poorer performance at the frontal assessment battery (r = -0.650, p = 0.012). Also, patients had a much larger number of microbleeds than controls (median and interquartile range 5 [3-11] and 0 [0-0] respectively; p < 0.001). In this study, adults with tetralogy of Fallot showed specific signs of brain injury, with some clinical implications. Eventually, accurate characterization of brain health using neuroimaging and neuropsychological data would aid in the identification of ACHD patients at risk of cognitive deterioration., (© 2022. The Author(s).)
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- 2022
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36. MRI versus CT in the detection of brain lesions in patients with infective endocarditis before or after cardiac surgery.
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Vitali P, Savoldi F, Segati F, Melazzini L, Zanardo M, Fedeli MP, Benedek A, Di Leo G, Menicanti L, and Sardanelli F
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- Abscess pathology, Brain diagnostic imaging, Brain pathology, Cerebral Hemorrhage diagnostic imaging, Cerebral Hemorrhage pathology, Humans, Magnetic Resonance Imaging methods, Male, Middle Aged, Retrospective Studies, Tomography, X-Ray Computed, Cardiac Surgical Procedures adverse effects, Endocarditis diagnostic imaging, Endocarditis pathology, Endocarditis surgery
- Abstract
Purpose: Imaging of brain involvement in infective endocarditis can drive the clinical management of this serious condition. MRI is very sensitive, but CT is more readily available. In this retrospective study, we compared the detection rates of CT and MRI., Methods: After Ethics Committee approval, we retrospectively reviewed a series of 20 patients (13 males, median age 64 years) who underwent both CT and MRI either before or after cardiac surgery for definite infective endocarditis. Plain CT and MRI were evaluated for acute ischemic lesions, both punctuate and large, intraparenchymal hemorrhages, cerebral microbleeds, subarachnoid hemorrhages, abscesses, microabscesses, and meningitis. Qualitative assessment and McNemar test were performed. The value of contrast-enhanced scans (MRI, n = 14; CT, n = 9) and cognitive status were also assessed., Results: A total of 166 lesions were identified on either technique: 137 (83%) on MRI only, 4 (2%) on CT only, and 25 (15%) on both techniques (p < 0.001). For these last 25 lesions, concordance on lesion type was only 16/25 (64%). MRI detected more microbleeds and ischemic lesions, while the 4 CT-only findings were false positives. Contrast-enhanced scans identified 68 enhancing lesions, mainly abscesses and microabscesses, and allowed a better characterization for 61/117 lesions (52%) with MRI, and for 11/81 (14%) with CT. Follow-up identified mild cognitive impairment in 6/13 and dementia in 3/13 patients., Conclusion: While CT rapidly excludes large hemorrhages in patients with infective endocarditis, MRI accurately distinguishes the whole spectrum of brain lesions, including small ischemic lesions, microbleeds, and microabscesses., (© 2021. The Author(s).)
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- 2022
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37. Contrast-enhanced Mammography: A Systematic Review and Meta-Analysis of Diagnostic Performance.
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Cozzi A, Magni V, Zanardo M, Schiaffino S, and Sardanelli F
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- Female, Humans, Breast Neoplasms diagnostic imaging, Contrast Media, Mammography methods
- Abstract
Background Contrast-enhanced mammography (CEM) is a promising technique for breast cancer detection, but conflicting results have been reported in previous meta-analyses. Purpose To perform a systematic review and meta-analysis of CEM diagnostic performance considering different interpretation methods and clinical settings. Materials and Methods The MEDLINE, EMBASE, Web of Science, and Cochrane Library databases were systematically searched up to July 15, 2021. Prospective and retrospective studies evaluating CEM diagnostic performance with histopathology and/or follow-up as the reference standard were included. Study quality was assessed with the Quality Assessment of Diagnostic Accuracy Studies 2 tool. Summary diagnostic odds ratio and area under the receiver operating characteristic curve were estimated with the hierarchical summary receiver operating characteristic (HSROC) model. Summary estimates of sensitivity and specificity were obtained with the hierarchical bivariate model, pooling studies with the same image interpretation approach or focused on the same findings. Heterogeneity was investigated through meta-regression and subgroup analysis. Results Sixty studies (67 study parts, 11 049 CEM examinations in 10 605 patients) were included. The overall area under the HSROC curve was 0.94 (95% CI: 0.91, 0.96). Pooled diagnostic odds ratio was 55.7 (95% CI: 42.7, 72.7) with high heterogeneity (τ
2 = 0.3). At meta-regression, CEM interpretation with both low-energy and recombined images had higher sensitivity (95% vs 94%, P < .001) and specificity (81% vs 71%, P = .03) compared with recombined images alone. At subgroup analysis, CEM showed a 95% pooled sensitivity (95% CI: 92, 97) and a 78% pooled specificity (95% CI: 66, 87) from nine studies in patients with dense breasts, while in 10 studies on mammography-detected suspicious findings, CEM had a 92% pooled sensitivity (95% CI: 89, 94) and an 84% pooled specificity (95% CI: 73, 91). Conclusion Contrast-enhanced mammography demonstrated high performance in breast cancer detection, especially with joint interpretation of low-energy and recombined images. © RSNA, 2021 Online supplemental material is available for this article. See also the editorial by Bahl in this issue.- Published
- 2022
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38. Occupational burnout among radiation therapy technologists in Italy before and during COVID-19 pandemic.
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Zanardo M, Cornacchione P, Marconi E, Dinapoli L, Fellin F, Gerasia R, Monti CB, Sardanelli F, Tagliaferri L, Jereczek-Fossa BA, and Gambacorta MA
- Subjects
- Child, Female, Humans, Pandemics, SARS-CoV-2, Surveys and Questionnaires, Burnout, Professional epidemiology, COVID-19
- Abstract
Introduction: Radiation therapy technologists (RTTs) are exposed to high stress levels which may lead to burnout, which could be further increased by the current pandemic. The aim of our study was to assess burnout and stress among Italian RTTs before and during the pandemic., Methods: The Italian Association of Radiation Therapy and Medical Physics Technologists (AITRO) and the Italian Federation of Scientific Radiographers Societies (FASTeR) proposed a national online survey, including the Maslach Burnout Inventory assessing emotional exhaustion (EE), depersonalisation (DP), and personal accomplishment (PA) to RTTs before and during the pandemic. Multivariate regression analyses and χ
2 tests were used for data analysis., Results: We obtained 367 answers, 246 before and 121 during the pandemic. RTTs before and during the pandemic showed high EE and DP, intermediate PA. Median EE was 37 (interquartile range [IQR] 31-46] before and 37 (IQR 30-43) during the pandemic, median DP was 16 (IQR 13-21) and 15 (IQR 12-20), respectively. PA was 31 (IQR 28-34) and 32 (IQR 28-34), respectively. Through multivariate analysis, being female and having children led to higher EE scores before and during the pandemic (p≤0.026). Only the presence of workplace stress management courses was related to lower DP before and being female was related to higher DP during the pandemic (p<0.001). Being female, having children, and working with paediatric patients were related to lower PA before and during the pandemic (p≤0.015)., Conclusion: Our study highlighted high burnout levels for RTTs regardless of the pandemic. Future interventions aimed at preventing burnout should be implemented in their work environment, independently of the impact of exceptional events., (Copyright © 2021. Published by Elsevier Inc.)- Published
- 2022
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39. Potential role of epicardial adipose tissue as a biomarker of anthracycline cardiotoxicity.
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Monti CB, Schiaffino S, Galimberti Ortiz MDM, Capra D, Zanardo M, De Benedictis E, Luporini AG, Spagnolo P, Secchi F, and Sardanelli F
- Abstract
Background: We investigated the radiodensity of epicardial (EAT), subcutaneous (SAT), and visceral adipose tissue (VAT) before and after treatment with anthracyclines in a population of breast cancer (BC) patients, and in controls not treated with anthracyclines, to detect a potential role of EAT density as a biomarker of changes related to chemotherapy cardiotoxicity., Methods: We reviewed BC patients treated with anthracyclines who underwent CT before (CT-t
0 ) and after (CT-t1 ) chemotherapy, and age- and sex-matched controls who underwent two CT examinations at comparable intervals. On non-contrast scans, EAT was segmented contouring the pericardium and thresholding between -190 and -30 Hounsfield units (HU), and SAT and VAT were segmented with two 15-mm diameter regions of interest thresholded between -195 and -45 HU., Results: Thirty-two female patients and 32 controls were included. There were no differences in age (p = 0.439) and follow-up duration (p = 0.162) between patients and controls. Between CT-t0 and CT-t1 , EAT density decreased in BC patients (-66 HU, interquartile range [IQR] -71 to -63 HU, to -71 HU, IQR -75 to -66 HU, p = 0.003), while it did not vary in controls (p = 0.955). SAT density increased from CT-t0 to CT-t1 in BC patients (-107 HU, IQR -111 to -105 HU, to -105 HU, IQR -110 to -100 HU, p = 0.014), whereas it did not change in controls (p = 0.477). VAT density did not vary in either BC patients (p = 0.911) or controls (p = 0.627)., Conclusions: EAT density appears to be influenced by anthracycline treatment for BC, well known for its cardiotoxicity, shifting towards lower values indicative of a less active metabolism., (© 2021. The Author(s).)- Published
- 2021
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40. CT-derived epicardial adipose tissue density: Systematic review and meta-analysis.
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Monti CB, Capra D, Zanardo M, Guarnieri G, Schiaffino S, Secchi F, and Sardanelli F
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- Adipose Tissue diagnostic imaging, Coronary Angiography, Humans, Risk Factors, Tomography, X-Ray Computed, Coronary Artery Disease diagnostic imaging, Pericardium diagnostic imaging
- Abstract
Purpose: The aim of our work was to systematically review and meta-analyze epicardial adipose tissue (EAT) density values reported in literature, assessing potential correlations of EAT density with segmentation thresholds and other technical and clinical variables., Method: A systematic search was performed, aiming for papers reporting global EAT density values in Hounsfield Units (HU) in patients undergoing chest CT for any clinical indication. After screening titles, abstract and full text of each retrieved work, studies reporting mean and standard deviation for EAT density were ultimately included. Technical, clinical and EAT data were extracted, and divided into subgroups according to clinical conditions of reported subjects. Pooled density analyses were performed both overall and for subgroups according to clinical conditions. Metaregression analyses were done to appraise the impact of clinical and technical variables on EAT volume., Results: Out of 152 initially retrieved works, 13 were ultimately included, totaling for 7683 subjects. EAT density showed an overall pooled value of -85.86 HU (95% confidence interval [95% CI] -91.84, -79.89 HU), being -86.40 HU (95% CI -112.69, -60.12 HU) in healthy subjects and -80.71 HU (95% CI -87.43, -73.99 HU) in patients with coronary artery disease. EAT volume and lower and higher segmentation thresholds were found to be significantly correlated with EAT density (p = 0.044, p < 0.001 and p< 0.001 respectively)., Conclusions: Patients with coronary artery disease appear to present with higher EAT density values, while the correlations observed at metaregression highlight the need for well-established, shared thresholds for EAT segmentation., (Copyright © 2021 Elsevier B.V. All rights reserved.)
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- 2021
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41. A critical appraisal of the quality of guidelines for radiation protection in interventional radiology using the AGREE II tool: A EuroAIM initiative.
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Zanardo M, Gerasia R, Giovannelli L, Scurto G, Cornacchione P, Cozzi A, Durante S, Schiaffino S, Monfardini L, and Sardanelli F
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- Databases, Factual, Humans, Radiologists, Practice Guidelines as Topic, Radiation Protection, Radiology, Interventional
- Abstract
Purpose: To systematically review and assess the methodological quality of guidelines for radiation protection in interventional radiology., Materials and Methods: On April 15
th , 2021, a systematic search for guidelines on radiation protection in interventional radiology was performed using MEDLINE, EMBASE, National Guideline Clearinghouse, and National Institute for Health and Clinical Excellence databases. Among retrieved guidelines, we then excluded those not primarily focused on radiation protection or on interventional radiology. Authors' professional role and year of publication were recorded for each included guideline. Guideline quality evaluation was performed independently by three authors using the six-domain tool "AGREE II", with an overall guideline quality score divided into three classes: low (<60%), acceptable (60-80%), and good quality (>80%)., Results: Our literature search identified 106 citations: after applying exclusion criteria, 11 guidelines published between 2009 and 2018 were included, most of their authors being interventional radiologists (168/224, 75%). Overall quality of included guidelines was acceptable (median 72%, interquartile range 64-83%), with only one guideline (9%) with overall low quality and four guidelines (36%) with overall good quality. Among AGREE II domains, "Scope and Purpose", "Clarity of Presentations", and "Editorial Independence" had the best results (87%, 76%, and 75% respectively), while "Applicability", "Rigor of Development", and "Stakeholder Involvement" the worst (46%, 49%, and 52% respectively)., Conclusion: Considering all guidelines, the overall methodological quality was acceptable with one third of them reaching the highest score class. The "Applicability" domain had the lowest median score, highlighting a practical implementation gap to be addressed by future guidelines., (Copyright © 2021 Elsevier B.V. All rights reserved.)- Published
- 2021
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42. Dual-energy CT performance in acute pulmonary embolism: a meta-analysis.
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Monti CB, Zanardo M, Cozzi A, Schiaffino S, Spagnolo P, Secchi F, De Cecco CN, and Sardanelli F
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- Humans, Reproducibility of Results, Sensitivity and Specificity, Tomography, X-Ray Computed, Pulmonary Embolism diagnostic imaging, Radiography, Dual-Energy Scanned Projection
- Abstract
Objectives: To evaluate the diagnostic performance of dual-energy computed tomography (DECT) with regard to its post-processing techniques, namely linear blending (LB), iodine maps (IM), and virtual monoenergetic (VM) reconstructions, in diagnosing acute pulmonary embolism (PE)., Methods: This meta-analysis was conducted according to PRISMA. A systematic search on MEDLINE and EMBASE was performed in December 2019, looking for articles reporting the diagnostic performance of DECT on a per-patient level. Diagnostic performance meta-analyses were conducted grouping study parts according to DECT post-processing methods. Correlations between radiation or contrast dose and publication year were appraised., Results: Seventeen studies entered the analysis. Only lobar and segmental acute PE were considered, subsegmental acute PE being excluded from analysis due to data heterogeneity or lack of data. LB alone was assessed in 6 study parts accounting for 348 patients, showing a pooled sensitivity of 0.87 and pooled specificity of 0.93. LB and IM together were assessed in 14 study parts accounting for 1007 patients, with a pooled sensitivity of 0.89 and pooled specificity of 0.90. LB, IM, and VM together were assessed in 2 studies (for a total 144 patients) and showed a pooled sensitivity of 0.90 and pooled specificity of 0.90. The area under the curve for LB alone, and LB together with IM was 0.93 (not available for studies using LB, IM and VM because of paucity of data). Radiation and contrast dose did not decrease with increasing year of publication., Conclusions: Considering the published performance of single-energy CT in diagnosing acute PE, either dual-energy or single-energy computed tomography can be comparably used for the detection of acute PE., Key Points: • Dual-energy CT displayed pooled sensitivity and specificity of 0.87 and 0.93 for linear blending alone, 0.89 and 0.90 for linear blending and iodine maps, and 0.90 and 0.90 for linear blending iodine maps, and virtual monoenergetic reconstructions. • The performance of dual-energy CT for patient management is not superior to that reported in literature for single-energy CT (0.83 sensitivity and 0.96 specificity). • Dual-energy CT did not yield substantial advantages in the identification of patients with acute pulmonary embolism compared to single-energy techniques., (© 2021. European Society of Radiology.)
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- 2021
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43. White Matter Hyperintensities Quantification in Healthy Adults: A Systematic Review and Meta-Analysis.
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Melazzini L, Vitali P, Olivieri E, Bolchini M, Zanardo M, Savoldi F, Di Leo G, Griffanti L, Baselli G, Sardanelli F, and Codari M
- Subjects
- Adult, Aged, Humans, Magnetic Resonance Imaging, Male, Middle Aged, White Matter diagnostic imaging
- Abstract
Background: Although white matter hyperintensities (WMH) volumetric assessment is now customary in research studies, inconsistent WMH measures among homogenous populations may prevent the clinical usability of this biomarker., Purpose: To determine whether a point estimate and reference standard for WMH volume in the healthy aging population could be determined., Study Type: Systematic review and meta-analysis., Population: In all, 9716 adult subjects from 38 studies reporting WMH volume were retrieved following a systematic search on EMBASE., Field Strength/sequence: 1.0T, 1.5T, or 3.0T/fluid-attenuated inversion recovery (FLAIR) and/or proton density/T
2 -weighted fast spin echo sequences or gradient echo T1 -weighted sequences., Assessment: After a literature search, sample size, demographics, magnetic field strength, MRI sequences, level of automation in WMH assessment, study population, and WMH volume were extracted., Statistical Tests: The pooled WMH volume with 95% confidence interval (CI) was calculated using the random-effect model. The I2 statistic was calculated as a measure of heterogeneity across studies. Meta-regression analysis of WMH volume on age was performed., Results: Of the 38 studies analyzed, 17 reported WMH volume as the mean and standard deviation (SD) and were included in the meta-analysis. Mean and SD of age was 66.11 ± 10.92 years (percentage of men 50.45% ± 21.48%). Heterogeneity was very high (I2 = 99%). The pooled WMH volume was 4.70 cm3 (95% CI: 3.88-5.53 cm3 ). At meta-regression analysis, WMH volume was positively associated with subjects' age (β = 0.358 cm3 per year, P < 0.05, R2 = 0.27)., Data Conclusion: The lack of standardization in the definition of WMH together with the high technical variability in assessment may explain a large component of the observed heterogeneity. Currently, volumes of WMH in healthy subjects are not comparable between studies and an estimate and reference interval could not be determined., Level of Evidence: 1 TECHNICAL EFFICACY STAGE: 1., (© 2020 International Society for Magnetic Resonance in Medicine.)- Published
- 2021
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44. Accuracy and inter-reader agreement of breast MRI for cancer staging using 0.08 mmol/kg of gadobutrol.
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Cozzi A, Buragina G, Spinelli D, Schiaffino S, Zanardo M, Di Leo G, Carbonaro LA, and Sardanelli F
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- Contrast Media, Female, Humans, Magnetic Resonance Imaging, Middle Aged, Neoplasm Staging, Reproducibility of Results, Retrospective Studies, Breast Neoplasms diagnostic imaging, Neoplasms, Organometallic Compounds
- Abstract
Background: Evidence on gadolinium brain accumulation after contrast-enhanced MRI prompted research in dose reduction., Purpose: To estimate accuracy and inter-reader reproducibility of tumor size measurement in breast MRI using 0.08 mmol/kg of gadobutrol., Methods: We retrospectively analyzed all women who underwent 1.5-T breast MRI for cancer staging at our department with 0.08 mmol/kg of gadobutrol. Two readers (R1 and R2, 12 and 3 years-experience) measured the largest lesion diameter. Accuracy was estimated both as correlation with pathology and rate of absolute (>5 mm) overestimation and underestimation, inter-reader reproducibility using the Bland-Altman method. Data are given as median and interquartile range., Results: Thirty-six patients were analyzed (median age 56 years, 49-66) for a total of 38 lesions, 24 (63%) mass enhancement, 14 (37%) non-mass enhancement. Histopathological median size (mm) of all lesions was 15 (9-25): 13 (9-19) for mass lesions, 19 (11-39) for non-mass lesions. On MRI, R1 measured (mm) 14 (10-22) for all lesions, 13 (10-19) for mass lesions, 19 (11-49) for non-mass lesions. MRI-pathology correlation was very high for all lesion categories (ρ ≥ 0.766). On MRI, R1 overestimated lesion size in 6 cases (16%), and underestimated in 3 (8%); R2, overestimated 7 cases (18%) and underestimated 3 cases (8%). At inter-reader reproducibility analysis (mm): bias 0.9, coefficient of reproducibility 13 for all lesions; -0.1 and 6 for mass lesions; 2.5 and 20 for non-mass lesions., Conclusions: Breast MRI may be performed using 0.08 mmol/kg of gadobutrol with high accuracy and acceptable inter-reader agreement., (Copyright © 2020. Published by Elsevier Inc.)
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- 2021
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45. MRI physics and technical issues: Where do Italian radiographers search for information?
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Zanardo M, Doniselli FM, Monti CB, Cornacchione P, Durante S, Sconfienza LM, and Sardanelli F
- Subjects
- Adolescent, Europe, Female, Health Knowledge, Attitudes, Practice, Humans, Italy, Male, Surveys and Questionnaires, Young Adult, Allied Health Personnel education, Information Seeking Behavior, Magnetic Resonance Imaging, Physics education
- Abstract
Introduction: Our aim was to investigate the means radiographers and radiographers in training (RTrs) use to seek information on magnetic resonance imaging (MRI) physics and technical issues., Methods: An estimated 3000 radiographers and RTrs were reached by e-mail. We proposed an online survey with eight English-language multiple choice questions investigating how often radiographers have doubts about MRI physics or technical issues, where and what kind of information they search for, and on which websites. The statistical χ
2 test was used., Results: We obtained 300 answers from European professionals (228 radiographers, 72 RTrs) from 9 European countries, with 288 of 300 (96%) responses coming from Italy. Within the Italian respondents, 41% of RTrs have doubts about MRI physics versus 56% of radiographers (p = 0.028). Basic MRI sequences details are more searched by RTrs (36%) than radiographers (22%) (p = 0.088), as well as clinical protocols (64% versus 44%, p = 0.054). Radiographers and RTrs mostly search on the Internet (74% versus 81%, p = 0.404); "older colleagues" are more frequently asked for information by RTrs (27% versus 61%, p = 0.001), they consult the "MRI manufacturer" less frequently (11% versus 34%, p = 0.001); and 66% of radiographers and 72% of RTrs search "in mother-language and English" (p = 0.590). For clinical protocols RTrs prefer the website mriquestions.com (17% versus 44%, p = 0.001). Websites most used were: mriquestions.com (41%), radiopaedia.org (31%), and mrimaster.com (13%). In addition, 30 respondents mentioned using the Italian site fermononrespiri.com., Conclusion: Italian radiographers and RTrs frequently search for information about MRI physics and technical issues, with slight differences between groups regarding sources and clinical protocols. Protocol setting, and MRI physics and sequences seem to be the main limitations of RTr knowledge. To remedy this gap, more time on training/university lectures and a rethinking of the practical training activities is required., (Copyright © 2020. Published by Elsevier Inc.)- Published
- 2021
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46. Late gadolinium enhancement in patients with Tetralogy of Fallot: A systematic review.
- Author
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Secchi F, Lastella G, Monti CB, Barbaro U, Capra D, Zanardo M, and Sardanelli F
- Subjects
- Contrast Media, Fibrosis, Heart Ventricles pathology, Humans, Magnetic Resonance Imaging, Cine, Myocardium pathology, Predictive Value of Tests, Gadolinium, Tetralogy of Fallot diagnostic imaging
- Abstract
Purpose: The aim of this study is to review the literature concerning myocardial late gadolinium enhancement (LGE) with cardiac magnetic resonance in patients with Tetralogy of Fallot (ToF), with regards to its prevalence, characteristics and clinical relevance., Methods: We performed a systematic search, aiming to retrieve original articles that evaluated LGE in ToF, running a search string on MEDLINE and EMBASE in November 2019 and November 2020. Papers were then selected by two independent, blinded readers based on title and abstract, and then on full-text reading, and articles which did not include LGE evaluation were excluded. From each included paper two readers extracted descriptive data concerning technical parameters of LGE acquisition, LGE description and clinical significance., Results: 18 articles were eventually included in our review. The included studies observed that a higher amount of right ventricular LGE relates with higher right ventricular volumes, lower ejection fraction and a higher pulmonary regurgitant fraction, thus acting as a marker of progressive impairment of myocardial function. Moreover, LGE in ToF patients correlated with the onset of arrhythmias, and with serum biomarkers indicative of myocardial stress and fibrosis., Conclusions: LGE could be used in the follow-up repaired ToF patients as its appraisal can provide information concerning cardiac dysfunction. Moreover, it may be ideal to aim towards a common framework for standardizing assessment and quantification of LGE in ToF patients., (Copyright © 2021 Elsevier B.V. All rights reserved.)
- Published
- 2021
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47. Awake Major Abdominal Surgeries in the COVID-19 Era.
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Romanzi A, Boleso N, Di Palma G, La Regina D, Mongelli F, Milanesi M, Putortì A, Rossi F, Scolaro R, Zanardo M, and Vannelli A
- Subjects
- Aged, Aged, 80 and over, Female, Humans, Male, SARS-CoV-2, Wakefulness, Anesthesia, Conduction methods, COVID-19, Laparotomy methods
- Abstract
Background: During the outbreak of coronavirus disease 2019 (COVID-19), allocating intensive care beds to patients needing acute care surgery became a very difficult task. Moreover, since general anesthesia is an aerosol-generating procedure, its use became controversial. This strongly restricted therapeutic strategies. Here, we report a series of undeferrable surgical cases treated with awake surgery under neuraxial anesthesia. Contextual benefits of this approach are deepened., Methods: During the first pandemic surge, thirteen patients (5 men and 8 women) with a mean age of 80 years, needing undelayable surgery due to abdominal emergencies, underwent awake open surgery at our Hospital. Prior to surgery, all patients underwent nasopharyngeal swab tests for COVID-19 diagnosis. In all cases, regional anesthesia (spinal, epidural, or combined spinal-epidural anesthesia) was performed. Intraoperative and postoperative pain intensities have been monitored and regularly assessed. A distinct pathway has been set up to keep patients of uncertain COVID-19 diagnosis separated from all other patients. Postoperative course has been examined., Results: The mean operative time was 87 minutes (minimum 60 minutes; maximum 165 minutes). In one case, conversion to general anesthesia was necessary. Postoperative pain was always well controlled. None of them required postoperative intensive care support. No perioperative major complications (Clavien-Dindo ≥3) occurred. Early readmission after surgery never occurred. All nasopharyngeal swabs resulted negative., Conclusions: In our experience, awake laparotomy under regional anesthesia resulted feasible, safe, painless, and, in specific cases, was the only viable option. This approach allowed prevention of the need of postoperative intensive monitoring during the COVID-19 era. In such a peculiar time, we believe it could become part of an ICU-preserving strategy and could limit viral transmission inside theatres., Competing Interests: The authors declare that there are no conflicts of interest regarding the publication of this article., (Copyright © 2021 Andrea Romanzi et al.)
- Published
- 2021
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48. AN INTERVENTIONAL CARDIOLOGY INVESTIGATION: PATIENT EXPOSURE TO RADIATION AND INTER-OPERATOR VARIABILITY IN AN IRISH SETTING.
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Anderson J, Zanardo M, Smyth B, Fox L, Anderson A, Maher M, and Louise Rainford L
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- Coronary Angiography, Fluoroscopy, Humans, Prospective Studies, Radiation Dosage, Radiography, Interventional, Retrospective Studies, Cardiology, Percutaneous Coronary Intervention, Radiation Exposure analysis
- Abstract
Aim: To evaluate patient radiation exposure for Diagnostic Coronary Angiography (DCA) and Percutaneous Cardiac Intervention (PCI) performed by different operators., Methods and Results: Retrospective (n = 160) and prospective (n = 62) data for DCA (n = 179) and PCI (n = 43) examinations performed by interventional cardiologists (n = 3) using the same imaging equipment were reviewed. The operator with consistently low diagnostic reference levels (DRLs) was interviewed for their personal perceptions upon operator training. Retrospective Median [IQR] DAP was 18.8 [11.8-31.6] and 50.7 [35.3-85.6] Gy.cm2 for DCA and PCI, respectively. Prospective Median [IQR] DAP for DCA and PCI was 7.9 [5.2-10.6] and 15.9 [10.0-17.7] Gy.cm2, respectively. DRLs were within Irish and European DRLs; however, significant inter-operator variability (p < .001) was identified., Conclusion: Radiation exposure in Interventional cardiology is highly operator dependent; further research is warranted in standardization of operator training with evolving technologies., (© The Author(s) 2020. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
- Published
- 2020
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49. Lean body weight versus total body weight to calculate the iodinated contrast media volume in abdominal CT: a randomised controlled trial.
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Zanardo M, Doniselli FM, Esseridou A, Agrò M, Panarisi NAR, Monti CB, Di Leo G, and Sardanelli F
- Abstract
Objectives: Iodinated contrast media (ICM) could be more appropriately dosed on patient lean body weight (LBW) than on total body weight (TBW)., Methods: After Ethics Committee approval, trial registration NCT03384979, patients aged ≥ 18 years scheduled for multiphasic abdominal CT were randomised for ICM dose to LBW group (0.63 gI/kg of LBW) or TBW group (0.44 gI/kg of TBW). Abdominal 64-row CT was performed using 120 kVp, 100-200 mAs, rotation time 0.5 s, pitch 1, Iopamidol (370 mgI/mL), and flow rate 3 mL/s. Levene, Mann-Whitney U, and χ
2 tests were used. The primary endpoint was liver contrast enhancement (LCE)., Results: Of 335 enrolled patients, 17 were screening failures; 44 dropped out after randomisation; 274 patients were analysed (133 LBW group, 141 TBW group). The median age of LBW group (66 years) was slightly lower than that of TBW group (70 years). Although the median ICM-injected volume was comparable between groups, its variability was larger in the former (interquartile range 27 mL versus 21 mL, p = 0.01). The same was for unenhanced liver density (IQR 10 versus 7 HU) (p = 0.02). Median LCE was 40 (35-46) HU in the LBW group and 40 (35-44) HU in the TBW group, without significant difference for median (p = 0.41) and variability (p = 0.23). Suboptimal LCE (< 40 HU) was found in 64/133 (48%) patients in the LBW group and 69/141 (49%) in the TBW group, but no examination needed repeating., Conclusions: The calculation of the ICM volume to be administered for abdominal CT based on the LBW does not imply a more consistent LCE.- Published
- 2020
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50. Bringing radiology to patient's home using mobile equipment: A weapon to fight COVID-19 pandemic.
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Zanardo M, Schiaffino S, and Sardanelli F
- Subjects
- COVID-19, Humans, SARS-CoV-2, Telemedicine, Betacoronavirus, Coronavirus, Coronavirus Infections, House Calls, Pandemics, Pneumonia, Viral, Radiography, Thoracic methods
- Abstract
Because of coronavirus disease 2019 (COVID-19) high contagiousness, it is crucial to identify and promptly isolate COVID-19 patients. In this context, chest imaging examinations, in particular chest x-ray (CXR), can play a pivotal role in different settings, to triage in case of unavailability, delay of or first negative result of reverse transcriptase-polymerase chain reaction (RT-PCR), and to stratify disease severity. Considering the need to reduce, as much as possible, hospital admission of patients with suspected or confirmed infection, the use of mobile x-ray equipment could represent a safe approach. We picture a potential sequence of events, involving a team composed by a radiographer and a nurse, going to patient's home to perform CXR, nasopharyngeal swab (and, if needed, also a blood sample), with fast radiologist tele-reporting, and resulting patient management approach (home isolation or emergency room admission, when needed). This approach brings healthcare to patient's home, reducing the risk of infected subjects referring to family doctors' office or emergency departments, and strengthening community medicine while maintaining a strong connection with radiology departments., (Copyright © 2020 Elsevier Inc. All rights reserved.)
- Published
- 2020
- Full Text
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