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Purpose: Radiology faculty across various specialties have been reported to receive an average of 20.7 invitations to submit manuscripts to bogus journals and 4.1 invitations to speak at unsuitable events over a two-week span. Radiology trainees also receive a fair number of unsolicited invitations from unknown senders to submit manuscripts and speak at meetings. Trainees can be more vulnerable to predatory invitations due to potential naivety. We aimed to determine the prevalence of these spam invitations received by radiology trainees., Material and Methods: The designed survey for evaluating the experience of radiology trainees regarding phishing scams of predatory publications and conferences was sent to radiology residency and neuroradiology fellowship program leadership to redistribute amongst their trainees, and was advertised on social media platforms. The survey was first sent out on September 28, 2023, and was closed two weeks later October 12, 2023. Spearman's correlation, univariable and multivariable linear regression analyses were performed., Results: Our study included 151 respondents who completed the survey. Of the survey respondents, 53 % reported receiving unsolicited emails from predatory publications (mean = 6.76 ± 7.29), and 32 % reported receiving emails from fraudulent conferences (mean = 5.61 ± 5.77). Significant positive correlation was observed between number of unsolicited email invitations with number of PubMed indexed publications, number as corresponding author, number in open access journals and number of abstract presentations., Conclusions: Trainees in radiology receive many unsolicited invitations to publish papers as well as to present at meetings that are not accredited. This could lead to wasted time and financial resources for unsuspecting trainees., Competing Interests: Declaration of competing interest All authors declare no conflict of interest with respect to this work. Dr. Yousem reports royalties from Elsevier, personal fees from Medicolegal consultant, speaking and consulting fees from MRIOnline.com, outside the submitted work. Dr. Lakhani receives grant support from American Society of Neuroradiology and Physician Scientist Training Program at Johns Hopkins University, outside the submitted work., (Copyright © 2024 Elsevier Inc. All rights reserved.)

Objective: Two-tiered preference signaling has been implemented in the radiology residency application system to reduce congestion in the setting of high-volume applications. Signals are an indicator of strong interest that an applicant can transmit to a limited number of programs. This study assessed the impact of program signaling on interview invitations, how applicants strategically used signals based on their application's competitiveness, and applicants' attitudes toward the current signaling system., Methods: A survey was sent to radiology residency applicants registered with TheRadRoom during the 2024 application cycle. We queried the applicants' background, applications, signal distribution, and interview outcome depending on the type of signal sent. We also asked whether respondents received an interview invitation from a hypothetical "comparator nonsignaled program" if they had one additional signal to use. Group differences were assessed using nonparametric Wilcoxon signed rank test., Results: A total of 202 applicants completed the survey (28% response rate). Most applied to diagnostic radiology (81%). Nearly all respondents used all six gold (98%) and six silver (96.5%) signals. Interview invitation rates were significantly higher for signaled programs (59.8% ± 27.4%) than nonsignaled (8.5% ± 8.5%); the invitation rate at the comparator nonsignaled programs was 37%. Gold-signaled programs had significantly higher interview rates (67.8% ± 29.3) than silver (51.8% ± 31.3%). Respondents used 49.2% (±21.7%) of their signals for "likely to match" programs, 33.1% (±20.9%) for "aspirational" programs, and 17.6% (±15.8%) for "safety" programs. Most respondents (146; 76%) supported continuing the signaling system for future cycles., Conclusion: Signaling programs significantly enhanced interview invitation rates, with gold signals being more effective than silver. The applicants used about six total signals for "likely-to-match" programs, two for "aspirational" programs, and about four for "safety" programs., (Copyright © 2024 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Objective: Annular fissures are common findings on MR studies of the lumbar spine but have not been specifically examined in the thoracic spine. We sought to review the prevalence and stability of MRI imaging features of thoracic annular fissures and the association of thoracic AFs with intervertebral degenerative disk changes., Materials and Methods: We surveyed 10 years of MRI studies in which patients had one or more repeated examinations of the thoracic spine. For every annular fissure, we recorded its imaging features on all pulse sequences and the evolution of those imaging findings across all time periods., Results: We reviewed 210 patients and discovered that 66 (31.4%) had at least one thoracic annular fissure. The presence of annular fissures was positively correlated with older age and male gender. The initial annular fissure was always hyperintense on T2WI and annular fissures remained hyperintense on T2WI over time in all cases but showed less hyperintensity in 23.9% (n = 39/163) and more hyperintensity in 4.9% (n = 8/163). The rate of concomitant disk bulges was 85.8% (n = 140/163). Of the 71 annular fissures in which gadolinium-enhanced studies were performed, 20 (28.1%) showed enhancement and 14/20 (70%) annular fissures showed persistent enhancement over time (mean follow-up = 39.6 ± 44.1 months)., Conclusion: Thoracic annular fissures rarely resolve, remain hyperintense on T2WI, and, if they enhance, that enhancement generally persists., Competing Interests: Declaration of competing interest The authors declare no conflict of interest. Unrelated, Dr. David Yousem reports royalties from Elsevier, personal fees from Medicolegal consultant, speaking and consulting fees from MRIOnline.com, outside the submitted work., (Copyright © 2023 Elsevier Inc. All rights reserved.)

Objectives: Multiple exposures to gadolinium-based contrast agents (GBCAs) is known to be associated with gadolinium deposition in the brain in certain patients. Such deposition has been correlated with specific brain MRI findings, although most available data is in patients with underlying neurologic disorders. We aim to prospectively evaluate brain MRI signal changes as well as neurologic and neuropsychologic testing results in women undergoing screening breast MRI., Methods: In this IRB-approved, HIPAA-compliant prospective study, 9 women with 5 or more exposures to linear and/or macrocyclic GBCA due to screening breast MRI underwent noncontrast brain MRI, neurologic exam and neuropsychologic testing. Women with underlying neurologic, psychologic, hepatic or renal disorders were excluded., Results: The mean total number of GBCA exposures was 8 (standard deviation 2.7), with 63/72 (87%) of the exposures being linear agents. There was no association between brain MRI signal changes and abnormalities on neurologic or neuropsychologic examination. There was no association between total number of GBCA exposures and abnormalities on neurologic or neuropsychologic examination., Conclusion: In this prospective exploratory study of 9 women with 5 or more GBCA exposures due to screening breast MRI, there was no association between brain MRI signal changes and clinical abnormalities on neurologic or neuropsychologic examination. While larger studies are needed in this patient population, the lack of clinical impact of multiple GBCA exposures in this study is reassuring., (Copyright © 2022 Elsevier Inc. All rights reserved.)

Purpose: When deciding among imaging equipment vendors, one may use a vendor's prevalence in peer-reviewed publications as a measure of their research and development. We sought to determine which vendors, countries, and journals were dominant in hepatic imaging literature of 2018 with respect to magnetic resonance (MR), computed tomography (CT), and ultrasound (US)., Methods: We recorded and analyzed the modality (MR, CT, US), journal, vendor, and authors' country for all original hepatic imaging articles published in 2018 in 29 imaging journals., Results: Of 197 MR articles, investigators used Siemens in 98 (50%), General Electric (GE) in 65 (33%), and Philips in 63 (32%). Of 115 CT articles, investigators mentioned Siemens in 55 (48%), GE in 45 (39%), Philips in 25 (22%) and other vendors in 27 (24%). Of 68 ultrasound articles, Siemens dominated with 27 (40%), versus GE with 19 (28%), Philips with 11 (16%), and other vendors with 42 (62%). We found a significant difference in vendor usage for MR, CT, and all modalities (p < .01). The plurality of articles was written in the United States (73 [23%]) with South Korea (56 [17%]) and China (56 [17%]) following. European Radiology published the most hepatic articles. For American journals, we found a significant difference in MR (p = .02) and CT (p < .01) vendor usage, whereas non-American journals nearly reached significance in MR (p = .06) and CT (p = .06) vendor usage., Conclusion: Siemens was the most cited vendor in hepatic imaging literature for all modalities. American institutions and non-American journals published the most hepatic imaging articles., (Copyright © 2020 Elsevier Inc. All rights reserved.)

Purpose: With motor vehicle collisions (MVC) predominating as a source of trauma now, we sought to 1) reassess the types of traumatic lumbar spine fractures, 2) highlight the coincidence of transverse process fractures (TPF) with visceral injuries and 3) emphasize the difference in management between compression fracture (CF) and TPF., Methods: We retrospectively reviewed the reports of lumbar spine and abdominopelvic CT scans from 2017 and 2018 to classify the types of spine fractures, their mechanism of injury, treatment and coexistence of abdominopelvic injuries., Results: 2.2% of patients had posttraumatic lumbar spine fractures (113/5229), including 58 patients (51.3%) with isolated TPF and 42 (37.2%) with isolated CF; 13 patients had mixed types. TPF accounted for 70% of all fractures (195/277) as opposed to 24% for CF (67/277). MVC was responsible for 60.3% (35/58) of TPF but falls accounted for 73.8% (31/42) of CF. The odds ratio of having isolated TPF from MVC was 4.1[1.8-9.0] versus CF after a fall from standing was 4.5[2.0-10.5]. Of patients with both visceral injuries and lumbar spine fractures, 75% (27/36) had isolated TPF (odds ratio of visceral injury with TPF was 4.4[1.8-10.7]). No TPF were treated with an intervention, however 77% (40/52) of CF were addressed surgically or with braces., Conclusion: TPF are the most common lumbar spine fractures and are often associated with MVC. There is a high association between TPF and abdominopelvic visceral injury requiring radiologists' attentiveness even though the TPF is not directly addressed., (Copyright © 2020 Elsevier Inc. All rights reserved.)

Purpose: During acute ischemic stroke evaluations, neurovascular imaging is commonly performed to localize the source of a thromboembolus and to identify vascular stenoses. In this study, we aimed to analyze 1) the usefulness of intracranial and/or cervical CTA and MRA and carotid doppler ultrasound (DUS) for identifying the stroke source and 2) the incidence of vascular stenoses across stroke etiologies., Methods: We retrospectively reviewed intracranial and/or cervical CTA, DUS and MRA studies to identify the source of the acute stroke by Trial of ORG 10172 in Acute Stroke Treatment (TOAST) criteria for 200 consecutive patients admitted with a stroke to our tertiary hospital. Stroke etiologies were ascertained and the rates of intracranial and cervical vascular stenoses were stratified by stroke type., Results: Of 200 patients, the most probable sources of stroke were small vessel disease (29%), cardioembolic (26.0%) and atheroembolic (23.5%). Across all groups, 27.5% of patients had ≥70% stenosis on neurovascular imaging. The rate of ≥70% vascular stenosis in the neck was 6.9% and 5.8% in the small vessel and cardioembolic categories, respectively., Conclusions: The TOAST etiologies of strokes were nearly equally distributed. Neurovascular imaging was of high utility for identifying large vessel intracranial stenoses in patients presenting with acute stroke across all etiologies, although neck CTA/MRA had a lower rate of positive studies with cardiogenic and small vessel strokes. These findings have implications on the use of CTA/MRA in acute stroke work-up., (Copyright © 2020 Elsevier Inc. All rights reserved.)

Purpose: To explore the current status and determine the uniformity of parental leave policies among US radiology residency programs., Methods: An electronic survey was developed and sent to 222 radiology residency program directors (PDs) in June 2019 to assess their policies and attitudes toward parental leave. The survey was administered via the Internet Qualtrics Research Suite (Qualtrics, Provo, Utah) format with four reminders sent over the course of 2 months before closing the data collection., Results: In all, 74 PDs responded to the survey. Of those, 88% claimed to have a maternal leave policy (88% explicitly written and 77% paid); 80% had a paternal leave policy (88% explicitly written and 75% paid). The average length of maternal and paternal leaves was 7.4 ± 3.9 and 3.7 ± 3.7 weeks, respectively. Parental leaves were allocated at least every other year in over 70% of programs. Approximately 60% of the PDs required residents to make up call rotations for parental leaves. About 92% of responsive programs adjusted angiography and fluoroscopy rotations for trainees throughout the pregnancy or according to the trainee's request. Policies did not generally address issues of breastfeeding and nontraditional parenthood., Conclusion: The proportion of radiology programs with explicit maternal leave policies remained constant compared with previous surveys during the last two decades. However, there was a dramatic rise in the adoption of paternal leave policies. Overall, there was a lack of national uniformity in radiology residency programs' policies concerning parental leave, leaving open the possibility of national guidance in addressing the issue., (Copyright © 2020 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Objective: The neuroradiology fellowship match has been in existence for about 20 years. However, the elements by which neuroradiology fellowship program directors evaluate candidates have not been clearly elucidated. We sought to identify the factors that program directors use to rank neuroradiology fellowship applicants., Methods: An anonymous Qualtrics online five-question survey about educational credentials, personal traits, extracurricular activities, and demographic characteristics was sent to 72 neuroradiology program directors in April 2019. Each question required ranking of 10 factors based on different characteristics of fellowship candidates. Items included gender, nationality, US Medical Licensing Examination scores, internal applicants, work and research experience, recommendation letters, residency program, medical school attended, and visa status. Program directors had the ability to list any new characteristics that were not included in the survey., Results: In all, 68 of 72 (94.4%) neuroradiology programs responded to the survey. The most important criteria by which candidates were assessed were (1) residency program attended for educational credential, (2) personality as assessed by faculty at interviews for candidate personal traits, (3) research performed for candidate's extracurricular activities, and (4) likelihood of coming to or previous experience in the fellowship geographic area. Neuroradiology program directors independently stressed residency program attended, personality assessed during the interview by faculty, internal candidate status, letters of recommendation, and research activities as their top five criteria in ranking the candidates., Conclusion: Multiple factors are weighed by neuroradiology fellowship program directors in selecting fellows, but recent experiences in residency, research, and faculty interactions are prioritized. Internal candidates have an advantage for remaining as fellows within their residency programs., (Copyright © 2019 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Purpose: In a recent study, it was found that, although intrinsic midbrain signal abnormality (IMSA) on MRI is associated with Parinaud's syndrome (PS) in patients with pineal gland masses (PM), it had no predictive value with respect to resolution of PS. We sought to compare the PM and non-pineal etiologies (NPE) of PS by reviewing imaging features of PS and whether or not they are predictive of resolution of symptoms., Methods: We reviewed electronic medical records from 1980 to 2017 and identified 71 patients with PS from any etiology who had MR imaging: 26 with PM and 45 with NPE. We subdivided the 45 NPE patients into those with intrinsic midbrain lesions (IMBL) (n = 23) and those with extrinsic midbrain lesions (EMBL) (n = 22). PS resolution and hydrocephalus data were collected. Imaging studies were reviewed for the presence of IMSA and hydrocephalus., Results: PS patients with EMBL were less likely to have IMSA than those with PM or IMBL (p ≤0.001). PS resolution occurred more commonly with PM than IMBL and NPE (p = 0.03, p = 0.01). For all NPE patients, resolution of PS occurred with equal frequency in patients with and without IMSA (p = 1.00). Hydrocephalus occurred more frequently in patients with PM and EMBL than IMBL (p = 0.01, p = 0.03)., Conclusions: IMSA is present more often in patients with PS from PM or IMBL than in patients with EMBL. EMBL, including PM, have an increased likelihood for PS resolution. There is no predictive value of IMSA with respect to resolution of PS in NPE as well as PM., (Copyright © 2019 Elsevier Inc. All rights reserved.)

Objective: Increasingly, medical journals are recognizing "equally credited authors" (ECA) in the primary and senior authorship of articles. The aim of this study was to assess the policies of co-first authorship, co-senior authorship, and designation of a corresponding author in the radiology literature., Methods: We identified 29 radiology journals based on impact factor ranking. Journal offices were contacted by phone and e-mail to ascertain their practices on first and senior authorship ECA designations. We surveyed the March, June, and December 2018 issues of each journal (when available) to assess the utilization of the co-designations in articles., Results: Twenty-five of 29 journals responded to our survey (response rate: 86.2%). Of 25 journals, 20 (80%) allowed co-first authorship. Among these, 4 of 25 journals (16%) allowed more than two co-first authors. Among the 25 responses, 14 journals (56%) allowed co-senior authorship. Among the 24 journals who responded to this specific question, 23 (96%) approved designation of a corresponding author, different from the first or senior author. The review of March, June, December 2018 editions found co-first authorship and co-senior authorship ECA rates of 8.6% (range 0.0%-22.7%) and 1.8% (range 0.0%-13.3%), respectively. A corresponding author other than first or senior author was noted in 13.3% (range 0.0%-34.7%)., Discussion: There has been widespread acceptance of the concept of ECA in the policies of the top cited imaging journals particularly for first authors (80%). However, the utilization of these designations is uncommon for first authorship (8.6%) and rare (1.8%) for senior authorship based on our 2018 sampling., (Copyright © 2019 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Purpose: The ACR Appropriateness Criteria recommend performing noncontrast head CT (NCCT) for patients with sudden severe headache ("worst headache of life" [WHOL] or "thunderclap headache" [TCH]). The aim of this study was to assess the value of NCCT scanning in patients with known migraine histories and WHOL or TCH. The hypothesis was that there would be little utility in performing emergency department (ED) NCCT scans in migraineurs without other red flags, even if they had WHOL or TCH., Methods: The ED NCCT scans of all patients reporting WHOL or TCH who had established diagnoses of migraine were retrospectively reviewed over a 5-year period. Patients without known intracranial pathology, cancer, or immunocompromising disease or recent head trauma were included as the main study group. For comparison, patients with any of those factors were included as the comparison group. Scans were graded as (1) normal, (2) minor unimportant findings, (3) findings requiring intervention or follow-up, or (4) critical., Results: Two hundred twenty-four patients with the chief symptom of WHOL or TCH and a history of migraine who underwent ED NCCT were studied. In the main study group, no patients had grade 4 imaging findings (0%), one had a false-positive grade 3 finding (0.8%), and there were no cases of subarachnoid hemorrhage (0%). In the comparison group, six patients had grade 4 imaging findings (6.5%) and three had grade 3 findings (3.3%)., Conclusions: NCCT in known migraineurs with WHOL or TCH who do not have intracranial pathology, cancer, immunocompromising disease, or recent head trauma yielded no critical findings. Therefore, the value of scanning these patients is questionable., (Copyright © 2018 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Purpose: Women in radiology are known to be underrepresented in academic leadership positions. We sought to determine if women are appropriately represented on editorial boards and editor-in-chief positions compared with their authorship contributions., Materials and Methods: We assessed the first and senior authorship male versus female gender breakdown of manuscripts published in nine high-impact American radiology journals 1 month per year from 2002 to 2017. We looked at the gender of the first authors, senior authors, editorial board members, and editors-in-chief of these journals to see if there was a gender discrepancy., Results: We assessed 3,702 first authors, 3,702 senior authors, and 9,400 editorial board members. Women were underrepresented on the editorial boards compared with their first-authored manuscript contribution in our sample of articles from every journal for every year and were underrepresented compared with their senior-authored manuscript contributions in 119 of 139 (85.6%) journal-years. The percentage of women as first authors (mean = 29.3 ± 9.9), senior authors (mean = 20.7 ± 8.1), and editorial board members (mean = 13.4 ± 6.5) showed major differences (P < .001). This gap did not significantly narrow over the 16 years of study. Notably, there was no woman as editor-in-chief for any of the journal-years., Conclusion: There is a gender gap in the composition of editorial boards in radiology compared with authorship contributions by women. Given the implications of editorial board assignment and editorship on women's academic advancement, journals may wish to consider strategies that will narrow the gap., (Copyright © 2018. Published by Elsevier Inc.)

Background: The radiology report serves as the primary means of communication between radiologist and clinician. However, the value clinicians place on imaging and reports is variable, with many images of studies or their reports never being viewed. This has implications on the perceived value of the radiologist in the imaging chain. We hypothesized that neurologists, neurosurgeons, and otolaryngologists would view neuroradiology images most frequently and neuroradiology reports least frequently of all medical specialties., Materials and Methods: Ordering data were collected on all neuroradiology studies over a 1-month period. Imaging study date and time stamps were obtained for (1) when imaging study orders were placed, (2) when the patient underwent the imaging study, (3) when the imaging studies were viewed, and (4) when the radiology reports were accessed and by whom. Each data point included provider names, locations, departments, and level of training., Results: There were 7,438 imaging neuroradiology studies ordered. Overall, 85.7% (6,372) of reports and 53.2% (3,956) of imaging studies were viewed and 13.1% (977) of studies had neither images nor reports viewed. Inpatient neurosurgeons and neurologists viewed both imaging and reports significantly more than primary care specialties (P < .001). In the outpatient setting, this trend stayed true for neurosurgeons though was not true for neurologists (P < .001). Outpatient study imaging and reports were both viewed the least (48.6%), and inpatient study reports were viewed the most (95.2%; P < .001)., Conclusion: Viewing of imaging and reports varies with neurosurgeons viewing neuroradiology studies more than all other medical specialties. Overall, the reports were viewed significantly more than the images, suggesting that the radiologist and his or her interpretation are more valuable than the study's images. The radiologists' value, as measured by reports viewed, was maximal with obstetricians and gynecologists and psychiatry clinicians., (Copyright © 2018 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Purpose: Cost-effectiveness analyses (CEAs) have become more prevalent in radiology. However, the lack of standard methodology may lead to conflicting conclusions on the cost-effectiveness of an imaging modality and hinder CEA-based policy recommendations. This study reviews recent CEAs to identify areas of methodological variation, explore their impact on interpretation, and discuss optimal strategies for performing CEAs in radiology., Methods: We performed a systematic review for cost-utility analyses in radiology from 2013 to 2017. Cost and quality-of-life methods were analyzed and compared using the Consolidated Health Economic Evaluation Reporting Standards checklist., Results: Eighty cost-utility studies met our inclusion criteria. A payer perspective was the most common (70%) and hospital perspective the least common (5%). Fourteen studies (17.5%) did not report perspective, and 12 (15%) reported a perspective inconsistent with their performed analysis. Cost inclusion varied greatly between studies; adverse effects of imaging (20.5%) and hospitalization (34.6%) were the least frequently included direct costs. Studies that measured their own utilities most commonly used the EuroQol-5D and Short Form-6D questionnaires; however, most studies (80%) cited utilities from previous literature. Seventy-two studies (90%) used willingness-to-pay thresholds, and 30 used cost-effectiveness acceptability curves (41.7%)., Conclusion: We observed statistically significant methodological variation indicating the need for a standardized, accurate means of performing and presenting CEAs within radiology. We make several recommendations to address key problems regarding study perspective, cost inclusion, and use of willingness-to-pay thresholds. Further work is required to ensure comparability and transparency between studies such that policymakers are properly informed when utilizing CEA results., (Copyright © 2018 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Purpose: We examined the impact of an MR scanner in the emergency department (ED) on ED length of stay (LOS), hospital (H) LOS, hospital admission rate, hospitalization costs, and ED re-presentation rate of patients presenting with stroke-like symptoms (SLS). We hypothesized that the ED MR would increase efficiency of patient care., Methods: The number of MRIs performed in the ED vs. inpatient setting, EDLOS, HLOS, hospitalization charges, admission rate, discharge diagnoses, and 30-60-day ED re-presentation rates were determined for ED patients with SLS six months before (2011) and after (2012) ED MR installation., Results: 362 and 448 patients with SLS presented to the ED, and 196 and 176 patients were admitted in 2011 and 2012 respectively. In 2011, 36 (18.4%) admitted patients, and, in 2012, 68 (38.6%) had MRIs in the ED, p<0.001. In 2011, 74 (37.8%) admitted patients were diagnosed with ischemic stroke, compared to 92 (52.3%) in 2012, p=0.007. HLOS was longer and charges higher for patients with stroke. No patients returned with a confirmed diagnosis of CVA or TIA within 0-60days after being discharged from the ED with negative MR., Conclusions: With the ED MR, more admitted patients 1) got scanned in the ED and 2) were diagnosed with stroke. Because this led to more patients on the stroke service actually suffering from strokes (and not other diagnoses), the overall HLOS and charges of patients presenting with SLS were not reduced by ED MR screening. Discharge after a negative ED MR did not incur risk of TIAs or strokes over the ensuing 60days. Therefore, not only does a dedicated MR scanner in the ED aid in the acute diagnosis of a CVA or other neurologic disorder, but it does so without the risk of under-diagnosing TIAs or evolving strokes in the presence of a negative MRI., (Copyright © 2017 Elsevier Inc. All rights reserved.)

Purpose: To gauge the prevalence of sexual harassment (SH) and to understand the issues regarding its disclosure among radiologists., Methods: A questionnaire on ethics and SH was sent by e-mail to 1,569 radiologists and radiology trainees in an institutional database maintained for continuing medical education purposes on three separate occasions between September 17 and October 31, 2016. The link to the survey was also posted on social media sites via the authors' divisional and institutional accounts on Facebook, Twitter, Instagram, and Aunt Minnie, as well as on ACR and RSNA web blogs., Results: Overall, 9.75% (39 of 400) respondents stated they had suffered SH, with more female (22 of 90 = 24.4%) than male victims (11 of 249 = 4.4%) (P < .001). Only 29.4% of SH victims said they would likely report SH (P < .001). Women (46 of 90 = 51.1%) said they were less likely to report SH than men (150 of 242 = 62.0%) (P = .03), and American medical school graduates (119 of 220 = 54.1%) were less likely than graduates from outside the United States (37 of 48 = 77.1%). Of 401 respondents to questions on SH, 28.7% (n = 115), including more women (38 of 91 = 41.8%) than men (61 of 249 = 24.5%) (P = .002), said they had witnessed SH., Conclusions: By percentage responding, female radiologists are more frequently victims and witnesses of sexual harassment but are less likely to report such cases. Steps need to be taken to eliminate a culture that leads radiologists to tolerate SH without addressing it., (Copyright © 2017 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Purpose: Ineffective communication of critical findings (CFs) is a patient safety issue. The aim of this study was to assess whether a feedback program for faculty members failing to correctly report CFs would lead to improved compliance., Methods: Fifty randomly selected reports were reviewed by the chief of neuroradiology each month for 42 months. Errors included (1) not calling for a CF, (2) not identifying a CF as such, (3) mischaracterizing non-CFs as CFs, and (4) calling for non-CFs. The number of appropriately handled and mishandled reports in each month was recorded. The trend of error reduction after the division chief provided feedback in the subsequent months was evaluated, and the equality of time interval between errors was tested., Results: Among 2,100 reports, 49 (2.3%) were handled inappropriately. Among non-CF reports, 98.97% (1,817 of 1,836) were appropriately not called and not flagged, and 88.64% (234 of 264) of CF reports were called and flagged appropriately. The error rate during the 11th through 32nd months of review (1.28%) was significantly lower than the error rate in the first 10 months of review (3.98%) (P = .001). This benefit lasted for 21 months., Conclusions: Review and giving feedback to radiologists increased their compliance with the CF protocol and decreased deviations from standard operating procedures for about 2 years (from month 10 to month 32). Developing new ideas for improving CF policy compliance may be required at 2- to 3-year intervals to provide continuous quality improvement., (Copyright © 2016 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Purpose: Many neuroradiology programs use United States Medical Licensing Examination (USMLE) scores to assess fellowship candidates. The authors hypothesized that because they are taken several years before fellowship, USMLE scores would correlate poorly with success in fellowship training as measured by faculty evaluations., Methods: USMLE scores from 10 years of neuroradiology fellows (n = 73) were compared with their cumulative mean E*Value scores from their fellowship years and their best-to-worst rankings within their fellowship years. If available, subspecialty certification scores were also factored as an outcome. Linear correlation and regression analyses were performed adjusting for gender, medical school site, and practice setting after fellowship., Results: USMLE Step 1, 2, and 3 scores were available for 69, 64, and 56 fellows, respectively. Fellowship E*Value scores and rankings showed statistically significant (P < .05) correlations with all USMLE scores, but most strongly for Step 1 scores and E*Value grade (r = 0.443) and rank (r = 0.370). The mean USMLE Step 1 score of the top-ranked fellows (234.5) was significantly higher than that of the bottom-ranked fellows (217.7). The correlations of E*Value score and rank with USMLE Step 1 and 2 scores remained after adjusting for gender and American versus foreign medical school, but the medical school site attended also was an independent predictor of fellowship evaluations. Subspecialty certification scores did not show correlations but were underpowered (n = 28)., Conclusions: USMLE Step 1 and 2 scores correlated significantly with success in neuroradiology fellowship, measured by faculty assessments of the six core competencies. Using the scores as a means of assessing candidates for positions is justified., (Copyright © 2016 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Deep white matter hyperintensity (DWMH) and periventricular (PV) white matter lesion volumes are associated with age and subsequent stroke. We studied age differences in these volumes accounting for collinearity and risk factors. Subjects were 563 healthy family members of early-onset coronary artery disease patients. Using 3T magnetic resonance imaging, lesions were classified as DWMH or PV. Age association with lesion classification was analyzed using random effects Tobit regression, adjusting for intracranial volume (ICV) and risk factors. Subjects were 60% women, 36% African-American, mean age 51 ± 11 years. In multivariable analysis adjusted for PV and ICV, DWMH was associated with age (p < 0.001) and female sex (p = 0.003). PV, adjusted for DWMH and ICV, was age associated (p < 0.001). For each age decade, DWMH showed 0.07 log units/decade greater volume (95% CI = 0.04-0.11); PV was 0.18 log units/decade greater (95% CI = 0.14-0.23); slope differences (p < 0.001). In people with a family history of coronary artery disease, PV and DWMH are independently and differentially associated with age controlling for traditional risk factors., (Copyright © 2015 Elsevier Inc. All rights reserved.)

Purpose: To assess the rate of jugular vein (JV) invasion by paragangliomas and imaging's ability to predict invasion., Methods: Imaging studies of patients with paragangliomas were evaluated for JV invasion. Rates of invasion by different paragangliomas and each modality's accuracy were determined., Results: JV invasion occurred in 11/11 glomus jugulares (GJs), 3/5 glomus vagales, and 2/8 carotid body tumors. Accuracy for magnetic resonance imaging (92.3%), computed tomography (92.3%), and digital subtraction angiography (94.1%) was comparable., Conclusions: JV invasion is characteristic of but not specific to GJs. All modalities show high accuracy in detecting invasion., (Copyright © 2014 Elsevier Inc. All rights reserved.)

Purpose: Physician malpractice expert witnesses may testify on behalf of physicians or patients. The goal of the study was to assess the experience of neuroradiologists as expert witnesses and their attitudes about such testimony., Methods: A survey was distributed to the 4,357 e-mail addresses of the members of the American Society of Neuroradiology with questions about expert witnesses., Results: The survey found that 1,301 of 4,357 answered at least one survey question. Five hundred twenty seven of 1194 (44.1%) of respondents had experience as expert witnesses. Most offer to testify on behalf of both plaintiffs and defendant physicians (324 of 465; 69.7%). Some do not testify/review cases on behalf of a plaintiff because they do not think that physicians should testify against other physicians, even if negligence is a factor (40 of 198; 20.2%). This reason was the most common for not agreeing to be an expert witness for a plaintiff, for all age groups. Of those expressing an opinion, 312 of 874 (35.7%) of neuroradiologists feel negatively about expert witnesses, whereas 434 of 874 (49.6%) say they serve a purpose, and 105 of 874 (12.0%) feel they should be commended for their work on behalf of the justice system., Conclusions: Of neuroradiologists answering the survey, nearly half have served as expert witnesses, and most feel comfortable testifying for both plaintiffs and defendants. Substantive negative perceptions (35.7%) of expert witnesses were found., (Copyright © 2014 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

The aim of this retrospective study is to assess the rate at which glomus jugulare tumors invade the hypoglossal canal (HC) and to correlate computed tomography (CT) and magnetic resonance imaging (MRI) findings with the clinical evidence of cranial nerve (CN) XII dysfunction. CT and MRI imaging modalities of 31 patients were blindly reviewed by an attending neuroradiologist. Imaging studies identified involvement in 22 tumors (22/31, 71.0%). Thirteen of 22 patients (59.1%) had clinically evident CN XII symptoms. Accuracy rate was 76.7% (23/30) for MRI and 78.6% (11/14) for CT. MRI showed 100% sensitivity but had only 59% specificity and the specificity for CT was 66.7%. When radiologists elucidate HC involvement, it may alter the surgical approach and may lead to more focused/accurate clinical evaluation of tongue function., (Copyright © 2014 Elsevier Inc. All rights reserved.)

Purpose: The aim of this study was to determine the level of support for the proposal to restrict ACGME-accredited fellowships to candidates who completed residencies accredited by the ACGME or the Royal College of Physicians and Surgeons of Canada. Perceptions of foreign-trained international medical graduates during and after fellowships were also assessed., Methods: An e-mail survey was sent to the members of the organizations that represent academic chairpersons (the Society of Chairs of Academic Radiology Departments) and radiology residency and fellowship program directors (the Association of Program Directors in Radiology) and to the program directors of the largest American radiology subspecialty society (the American Society of Neuroradiology). Results were analyzed separately for each of the 3 societies interviewed and then as a composite report for all 3 societies., Results: Approximately 60% of the respondents said that they have offered at least one fellowship or faculty position to foreign-trained applicants in the past 5 years. More than 70% of the respondents said that these doctors performed equally to or better than American-trained ones both clinically and academically. The majority of members of all 3 societies responding opposed enactment of the rule, with the American Society of Neuroradiology being the most disapproving. The main concerns of those supporting the new rule were the inhomogeneous and sometimes unknown levels of training of the foreign-trained doctors and the need to favor American graduates. Those opposed were mostly worried about diminishing the quality of fellowship candidates, programs being unable to fill their positions, and a decrease in academic-oriented people., Conclusions: Most respondents opposed the proposed rule. The majority were supportive of foreign-trained physicians continuing their training in the United States., (Copyright © 2014 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

To determine the prevalence of cervical ribs on cervical spine MRI and clinical relevance, we reviewed 2500 studies for cervical ribs and compression of neurovascular structures and compared to CT, when available. Brachial plexus or subclavian artery contact by cervical rib was identified on MRI and/or CT in 12 cases with diagnosis of thoracic outlet syndrome in one. Cervical ribs were identified on 1.2% (25/2083) of examinations, lower than on CT (2%), but MRI may offer equivalent anatomic explanation for patient symptoms., (Copyright © 2013 Elsevier Inc. All rights reserved.)

Purpose: The aims of this study were to analyze reporting of critical findings among neuroradiologists in a university setting and to revise a list of critical findings reflecting an academic clinical practice as part of a practice quality improvement project., Materials and Methods: Neuroradiologic studies performed between January 1 and February 28, 2011, containing "critical finding" notations were searched. Reports were matched with an institutionally approved list of critical findings. These findings and unlisted items that were labeled critical were analyzed for frequency, clinical severity, and diagnosis category. The list was revised on the basis of frequency and severity results., Results: A total of 12,607 reports contained 871 critical findings, 608 of which (69.8%) matched the preexisting list. One-third of the findings (263 of 871) labeled critical were not found on the list. Facial, spinal, and calvarial fractures (76 of 263 [28.9%]) and neurovascular injuries (38 of 263 [14.4%]) were the most frequent unlisted findings. A revised list encompassed 86.7% of all communicated neuroradiologic critical findings., Conclusions: Clinician-approved and neuroradiologist-approved standardized sets of critical findings can facilitate the communication of important results without "overcalling" and decreasing efficiency. Physician judgment of what constitutes a critical finding supersedes any such list, as clinical scenarios are highly variable from patient to patient. Critical findings lists require intermittent revision to reflect practice patterns and changing incidence of disease. Such a review can constitute a practice quality improvement initiative., (Copyright © 2013 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Purpose: An increasing portion of imaging studies are performed by nonradiologists, especially for modalities with the highest relative value units. The aim of this study was to examine the trends in neuroradiologic interpretation among radiologists, neurologists, neurosurgeons, and other specialists within the Medicare population., Methods: The number of neuroradiologic studies interpreted by radiologists, neurologists, neurosurgeons, and other specialists in the inpatient, hospital outpatient, and private office settings was determined from the CMS Physician/Supplier Procedure Summary Master Files for 1996 to 2010. Studies billed through professional and global charges were aggregated. Utilization rates and utilization rate compound annual growth rates were computed by specialty and by imaging study., Results: In 1996, radiologists interpreted 4,802,490 (93.7%) CMS neuroradiologic procedures, neurologists 77,312 (1.5%), neurosurgeons 9,825 (0.19%), and other specialists 234,423 (4.6%). In 2010, radiologists interpreted 11,476,376 (93.5%) procedures, neurologists 101,172 (0.8%), neurosurgeons 20,697 (0.17%), and other specialists 680,786 (5.5%). Neurology and neurosurgery lost market share at all sites. Radiology's share increased in the inpatient (from 94.8% to 98.7%) and hospital outpatient (from 95% to 98.7%) settings but decreased in the private office setting (from 88.2% to 73.1%). Lost market share was captured by the other CMS specialty categories, including independent diagnostic testing facilities and multidisciplinary groups, many of which included radiologists., Conclusions: There was marked growth (140%) in neuroradiologic studies between 1996 and 2010 in the Medicare patient population. Radiologists' share of the total neuroradiologic interpretations remained unchanged and constituted 93.5% in 2010. Radiology's market share has shown growth in the inpatient and hospital outpatient sectors but not the private office sector, where independent diagnostic testing facilities, multidisciplinary groups, and other specialists have seen increases., (Copyright © 2012 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Background and Purpose: Vacuum phenomenon (VP) is commonly found in sacroiliac joints, and its significance in patients with back pain has been debated. We investigated the prevalence of sacroiliac joint vacuum phenomenon (SJVP) and the rate at which it is reported on abdominopelvic and lumbosacral spine computed tomography (CT) images by body imagers and neuroradiologists. We hypothesized that it would be more common than not and that neuroradiologists would identify it more frequently than body imagers and on spine images more commonly than abdominopelvic studies due to the search for the source of back pain in the former., Materials and Methods: CT images of the pelvis and lumbar spine from January to February 2009 were retrospectively reviewed. Six hundred fifty-two patients were studied during this period. Axial thin-section images were reviewed under default lung and bone window settings. Age, sex, and radiologist reports were assessed from electronic medical records., Results: The prevalence of SJVP on CT imaging was 34%, with higher rates found in female (41%, P<.001) and older (39%, P<.05) patients. Eighty-five percent of the phenomena were present bilaterally. Among the 223 patients with SJVP, only 17% were reported. There were no statistically significant differences between reporting rates for body radiologists and neuroradiologists., Conclusion: SJVP is a prevalent condition with higher rates among older and female individuals. The phenomenon is underreported on CT images whether the studies performed are abdominopelvic scans or spine studies and whether they are interpreted by body imagers or neuroradiologists., (Copyright © 2011 Elsevier Inc. All rights reserved.)

Purpose: The ACGME recognizes radiology's neuroradiology fellowship programs as the pathway to neuroradiology expertise. Members of the American Society of Neuroimaging have called for the expansion of neuroradiology fellowships for neurologists with informal accreditation through the United Council for Neurologic Subspecialties. The aim of this study was to investigate the number of neuroradiologic studies read by neurologists to assess their capacity to support fellowship positions at ACGME training criteria., Methods: The numbers of neuroradiologic studies interpreted by radiologists and neurologists in the inpatient and hospital outpatient settings were determined from the CMS Physician/Supplier Procedure Summary Master Files for 1996 to 2008. The ACGME requirements of 1,500 neuroradiologic CT and 1,500 neuroradiologic MR scans per fellow per year were used to calculate the number of fellowship positions that could be supported by each specialty., Results: In 2008, in the inpatient and hospital outpatient setting, radiologists interpreted 9,287,768 (98.3% of the total) and neurologists interpreted 43,107 (0.5% of the total) neuroradiologic examinations on Medicare patients. Per ACGME requirements, on the basis of CT volumes, radiologists could potentially train 4,256 neuroradiology fellows, compared with neurologists' 12 fellows, assuming a single fellow was exposed to every Medicare case. On the basis of MR volumes, radiologists and neurologists could train 1,935 and 16 fellows, respectively., Conclusions: Radiologists are responsible for interpreting the vast majority (98.3%) of neuroradiologic studies. Neurologists have a limited exposure to neuroradiologic CT and MR and could support only 12 fellowship positions by ACGME criteria on the basis of reading available 1996 to 2008 Medicare cases., (Copyright © 2011 American College of Radiology. Published by Elsevier Inc. All rights reserved.)

Background and Purpose: The selection of neuroradiology fellows who will start on July 1, 2005, marked the fourth year in which program directors in neuroradiology used the National Resident Matching Program (NRMP) as the selection modality. The aim of this study was to investigate fellowship candidates' views regarding the match process., Methods: A Web survey was distributed electronically to all candidates applying for neuroradiology fellowship positions offered for the July 1, 2005, start date, with questions about the match. One hundred thirteen neuroradiology fellowship candidates responded to the survey, representing 73.9% of the surveyed fellowship pool. Candidates were also allowed to enter their comments regarding the match process via the Web survey., Results: Of the 113 neuroradiology fellowship candidates responding, 75.7% felt that the NRMP system was fair, 86.0% were satisfied with the outcome, 88.8% had matched with one of their top three choices, 54.5% recommended continuing the neuroradiology fellowship match, and 15.5% stated that they experienced violations of the match rules. The main perceived advantages of the match from the candidates' perspectives were the ability to see many programs and explore multiple options, the perception of fairness, and the efficiency of using the match program. The main disadvantages were the cost of applications and traveling, the number of days required to interview, and the perception that the match program favors internal candidates., Conclusion: The majority of fellowship candidates felt that the match system for selection is a fair process and were satisfied with the outcome. However, the perceived disadvantages produced tepid (54.5%) support for the continuation of the match. Program directors in neuroradiology and other radiologic subspecialties should consider the data provided in this article in deciding the future selection process.

Background: Acquired nasolacrimal duct obstruction is a common ophthalmologic problem. Despite widespread understanding of treatments available for nasolacrimal duct obstruction, few authors have commented on its etiology. Because the nasolacrimal system is anatomically related to important nasal and sinus structures, the authors postulated that acquired nasolacrimal duct obstruction and its complications might occur simultaneous to, and possibly as a consequence of, rhinologic or sinus disease., Materials and Methods: Twenty-three patients with acquired nasolacrimal duct obstruction and 100 control patients were evaluated by coronal computed tomography for evidence of sinus disease or nasal abnormalities. Specifically, five findings were noted: ostiomeatal complex disease, ethmoidal opacification, agger nasi cell opacification, concha bullosa, and nasal septal deviation., Results: Overall, 20 (87%) patients with acquired nasolacrimal duct obstruction demonstrated one or more radiologic finding of sinus disease or rhinologic abnormality whereas 63 (63%) control subjects exhibited these findings. This difference was determined to be statistically significant (P < 0.05). A statistically significant higher incidence of ethmoidal opacification, agger nasi cell opacification, and nasal septal deviation was observed in patients with nasolacrimal outflow obstruction than in controls. Differences in the incidence of ostiomeatal complex disease and concha bullosa were not found to be statistically significant., Conclusion: These data demonstrate a correlation between computed tomography findings of sinus disease or nasal abnormality and the presence of acquired nasolacrimal outflow obstruction. This association between radiologic evidence of sinorhinologic disorders and lacrimal outflow obstruction may imply that dacryocystitis, like sinus disease, may be produced by disease of the lateral nasal wall. When evaluating a patient with acquired nasolacrimal duct obstruction, the physician should consider evaluation for concomitant nasal and sinus disease.

The authors examined periventricular white matter, deep white matter, and subcortical magnetic resonance imaging (MRI) high-intensity signals in subjects with late-life depression, probable Alzheimer's disease (DAT), and healthy, age-matched controls. All subjects were healthy and free of major vascular risk factors, including hypertension. MRIs were performed using a 1.5-tesla GE Signa scanner. T 2 and proton-density-weighted images were analyzed by a neuroradiologist blind to the clinical status of all subjects. There were no statistically significant differences on any of the MRI indices between the groups studied. These data demonstrate that late-life depression, like DAT, in the absence of major vascular risk factors, is not associated with a significant increase in MRI high-intensity signals when compared to healthy, control subjects., (Copyright © 1994 American Association for Geriatric Psychiatry. Published by Elsevier Inc. All rights reserved.)

Eighty-seven patients with sellar and parasellar pathology were evaluated by magnetic resonance imaging to categorize lesions with hyperintensity on T1-weighted images. Postoperative fat packing after transsphenoidal hypophysectomy, intratumoral subacute or chronic hemorrhage in pituitary adenomas, and hemorrhagic or fat-containing craniopharyngiomas accounted for 33 of 35 abnormalities with short T1 values. Forty-three percent of nonsurgically treated pituitary adenomas had subacute intratumoral hemorrhage present. Using T2-weighted images to distinguish fat from subacute hemorrhage and attempting to identify the normal anterior pituitary gland on T1-weighted images may help to differentiate these three entities. T1-weighted images alone were not sufficient to distinguish between all sellar and parasellar masses.

The bony pelvis should be carefully evaluated on computed tomography (CT) scans of the lower abdomen and pelvis performed for staging cervical cancer or for evaluating suspected recurrence. CT provides optimal imaging of the spine and pelvis, frequently providing a clinically relevant supplement to bone scan or plain film information. In a study of eight patients with skeletal metastases from cervical carcinoma and three cases of radiation osteitis, overlap existed in their imaging characteristics. Metastases were always lytic but nearby sclerotic areas from radiation were often present. Radiation osteitis may be lytic, sclerotic, or mixed, and both may avidly accumulate bone-scanning radiotracers. The absence of a soft tissue mass, slow progression, blastic elements, and sharply defined borders on CT suggest radiation necrosis. However, in some lesions within a radiation portal, biopsy or MRI may be required for final diagnosis.