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Aim: We aimed to investigate the total cerebellum volume and the volume of healthy individuals' right and left cerebellum lobes according to age groups and sex. Methods: 3D T1-weighted Magnetic Resonance Images of 200 individuals (100 females, 100 males) of both sexes between the ages of 18-78 were included in our study. Total cerebellum volume and volume results of cerebellum lobules will be calculated from these images with the sub-tab CERES of the volBrain software program. Results: The total cerebellum volume in our study was found to be 115.41 ±12.25 cm3 in females and 126.27±14.78 cm3 in males, and the valuesvere statistically significant (p<0.001). The right side lobule HI, lobule IV, lobule crus II, lobule VIIB, lobule VIIIA, and lobule X valuesof the cerebellum were statistically higher than the left side (p<0.05). On the left side, lobule V, VIIIB, and IX values were statistically higher than the right side (p<0.05). When evaluated according to sex, the values of males were statistically higher Than females in all parameters except for me total lobule HI, right lobule HI, left lobule l-ll, right lobule V, total lobule VI and right lobule VI values(p<0.05). According to age groups, except for total lobule l-ll, right lobule l-ll, and left lobule l-ll values, all other parameters were statistically lower in the 50 years old and above group than in the under 50 years old group (p<0.05). Conclusion: We believe that knowing the total cerebellum volume and volumetric analysis of its lobules in healthy adults will define the disease group and its prognosis. [ABSTRACT FROM AUTHOR]

Copyright of Mugla Journal of Science & Technology is the property of Mugla Journal of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: We aimed to determine in which of the symptomatic intra-articular pathologies of the knee, clinical examination and magnetic resonance imaging (MRI) can be an alternative to diagnostic arthroscopy. Materials and Methods: Prospective analysis of 50 patients aged 18 to 50 years who underwent arthroscopy with the diagnosis of meniscus tear, cruciate ligament injury, cartilage damage, or plica between 2013 and 2015 was conducted. The results of the physical examination and MRI were compared with arthroscopy findings. Results: Patients with a mean age of 35 years. Sensitivity, specificity, and accuracy rates in the Mc-Murray test were 90%, 11%, 76%; 76%, 33%, 68% in the Apley test; and 80%, 33%, 72% in the Ege’s test. Sensitivity, specificity, and accuracy rates in the MRI for the medial meniscus were 87%, 68%, 80%; 92%, 92%, 92% for the lateral meniscus; 36%, 95%, 62% for chondral injury; 90%, 95%, 94% for the anterior cruciate ligament; and 21%, 59%, 34% in the plica. Conclusion: It should be noted that positive results can also be obtained in other knee intra-articular pathologies other than meniscus tear, as the sensitivity of these tests used to diagnose meniscus tear is high, but specificity is low. 1.5-tesla MRI has a high accuracy rate for detecting meniscus and anterior cruciate ligament injuries, while the diagnostic power of chondral surface evaluation remains limited, and high-resolution cartilagespecific images are required. As it is insufficient for evaluating plica on its own, it must be carefully incorporated during arthroscopy.

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Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Anatolian Clinic Journal of Medical Sciences is the property of Hayat Saglik ve Sosyal Hizmetler Vakfi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: White matter lesions are common neurological diseases in the elderly. In this study, we aimed to investigate the impact of cerebral white matter lesions on walking time and daily living activities in the elderly population. Methods: A total of 82 individuals, including 40 healthy volunteers and 42 age and sex-matched patients, were enrolled in this study. Magnetic resonance imaging findings were recorded based on the Fazekas Staging System. Risk factors potentially predisposing individuals to white matter lesions were documented through laboratory testing. Additionally, atherothrombotic plaque formations and stenosis were graded using Carotid and Vertebral Artery Doppler Ultrasonography in patients with white matter lesions. The Lawton Instrumental Activities of Daily Living Scale, MiniMental State Examination, and the Timed Up & Go Test were administered to both the patient and control groups to assess daily living activities and cognitive functions. Results: The results of this research showed that as the percentage of stenosis increased in Carotid and Vertebral Artery Doppler Ultrasonography, there were corresponding decreases in Lawton Instrumental Activities of Daily Living Scale scores, haemoglobin and hematocrit values while fasting blood glucose and homocysteine levels increased as expected. Furthermore, significant differences were observed in the Timed Up & Go Test in advanced stages when evaluated according to the Fazekas Staging System. Conclusion: Our study indicated that white matter lesions do not significantly affect daily living activities but prolong the walking time in elderly individuals. [ABSTRACT FROM AUTHOR]

Copyright of Selcuk Dental Journal is the property of Selcuk Dental Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Praxis of Otorhinolaryngology / Kulak Burun Boğaz Uygulamaları is the property of Official Journal of ENT-HNS Society of Istanbul and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Hamidiye Medical Journal is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A 73-year-old woman with known diagnosis of chronic hepatitis B infection referred for 18F-fluorodeoxyglucose positron emission tomography/ computed tomography 18F-FDG PET/CT) and magnetic resonance imaging (MRI) after detection of a liver mass with 9 cm diameter in contrast enhanced CT. However, 18F-FDG PET/CT and MRI revealed diffuse infiltrating hepatocellular carcinoma lesions other than previously defined mass. After 9 months of Sorafenib treatment serum alpha feto protein levels dropped from 60,500 ng/mL to 801 ng/mL. Later, 18F-FDG PET/MRI was performed for evaluation of response to treatment and revealed marked response to treatment. [ABSTRACT FROM AUTHOR]

Copyright of Istanbul Gelisim University Journal of Health Sciences / İstanbul Gelişim Üniversitesi Sağlık Bilimleri Dergisi is the property of Istanbul Gelisim Universitesi Saglik Bilimleri Yuksekokulu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: The aim of this study is to evaluate the conventional and diffusion MRI findings of ring-shaped lateral ventricular nodules (RSLVN) along with clinical features. Materials and Methods: MR images of all patients who underwent contrast-enhanced brain MRI between 2019 and 2023 were retrospectively evaluated. The number, shape, maximal diameter, and signal intensity of RSLVNs on T1-weighted (T1W), T2-weighted (T2W), fluid-attenuated inversion recovery (FLAIR) and diffusion-weighted imaging (DWI), and contrast-enhancement status were evaluated. Apparent diffusion coefficient (ADC) values and normalized ADC ratios of nodules were also determined. If follow-up MRIs were performed, morphological changes of RSLVNs were evaluated. Results: RSLVN was observed in fifteen (0.51%) of 2920 patients. Multiple RSLVNs were observed in five patients and therefore a total of 23 RSLVNs were identified in fifteen patients. Nodules were located on the roof of the lateral ventricle in eight nodules (34.8%), in the frontal horn in twelve nodules (52.2%), and in the septum pellucidum in three. 6 of 23 RSLVNs (26.1%) were larger than 1 cm All RSLVNs were isointense on T1W and T2W, while hyperintense on FLAIR. On DWI, 20 of 23 RSLVNs had isointense signal and the remaining 3 lesions were hyperintense. The mean ADC value and nADC ratio were 1.42 ± 0.29 x 10-3mm2 and 1.87 ± 0.31, respectively. Conclusions: RSLVNs may be more frequent than previously reported. Their uniform MRI appearance and typical localizations are distinctive, and they can reach relatively large sizes. Morphological stability during follow-up and the ADC values of these lesions suggest a possible benign nature. [ABSTRACT FROM AUTHOR]

Objective: The purpose of this study is to evaluate the contribution of diffusion weighted (DWI) MRI and measured appearent diffusion coefficient (ADC) values in hepatic hemanjiomas. Methods: The study population consisted of 70 patients with liver hemangiomas. DWI examination with a b value of 800 s/mm2 was carried out for all patients. After DWI examination, an ADC map was created and ADC values were measured for 70 liver masses and normal liver tissue (control group). ADC measurement of 70 normal liver parenchyma and, mean ADC values of 80 hemangiomas are performed. Results: Eighty hemangiomas of 70 patients composed by 50 women and 20 men are evaluated in our study. Age of the patients who included to study are between 26 and 73 and the mean age was calculated 49.61 ± 10.96. Hemangiomas are shown most highly at segment 7 (%28.8) and segment 6 (%21.3), and least at segment 5 (%5). While the mean ADC measurement of normal livers of patientes are included to study was 1.06 ± 0.11 x 10-3 mm2/s, the mean ADC value of hemangiomas was measured 1.70 ± 0.29 x 10-3 mm2/s. Conclusion: DWI, and measurements of ADC values obtained from process are useful for the diagnosis of hemangioma. We think that DWI should be routinely added to convantional MR sequences. [ABSTRACT FROM AUTHOR]

Copyright of Bagcilar Medical Bulletin / Bağcılar Tıp Bülteni is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Firat Universitesi Sağlik Bilimleri Tip Dergisi is the property of Firat Universitesiu, Saglik Bilimleri Enstitusu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction Axial spondyloarthritis has characteristic clinical features such as enthesitis, sacroiliitis and spondylitis, and extra-articular manifestations. Sacroiliitis (SI) occurs as a result of inflammation of the sacroiliac joint. Magnetic resonance imaging (MRI) of sacroiliac (SI) joints is used to detect early sacroiliitis. Sometimes, there can be variations in the interpretation of MRI findings of the SI joint among observers. Our aim was to investigate the inter-observer agreement among the observers. Materials and methods The study included the MRI results of 1150 patients who were diagnosed with active or chronic sacroiliitis based on the findings from sacroiliac MRIs, or whose MRI was deemed indicative of sacroiliitis by the rheumatologist. 1150 MRIs were re-evaluated by a different and expert radiologist. Results Out of the total 1150 patients investigated within the scope of this study. A statistically significant disparity emerged between the assessments provided by the expert radiologists and those obtained from outsourced radiologist evaluations. Conclusion The diagnosis of spondyloarthropathy may be delayed for some reasons. If the patient's clinic and MRI report are not consistent, the patient should not be removed from follow-up.

Abstract Aims: To investigate the role of magnetic resonance imaging (MRI) texture analysis (TA) in the detection of metastatic lymph nodes in patients with nasopharyngeal carcinoma (NPC). Material and methods: Between January 2020 and October 2021, 15 NPC patients with 32 metastatic lymph nodes and 30 healthy subjects with benign lymph nodes were included in the study. The texture features compared between metastatic and benign lymph nodes. The independent predictor parameters of metastatic lymph nodes were determined using multivariate regression analysis. Receiver operator characteristics (ROC) analysis was used to evaluate the diagnostic performance of the regression models. Results: The first order texture features did not differ significantly between groups (p>0.05). Except for correlation in metastatic lymph nodes, all gray-level co-occurrence matrix (GLCM) and gray-level run length matrix (GLRLM) features were significantly different (p

Aim: The aim of this study was to evaluate the intra- and inter-rater reliability coefficients of the supraspinatus muscle thickness (SMT), acromiohumeral distance (AHD), and coracohumeral distance (CHD) in patients with shoulder pain. Materials and Methods: This retrospective study included 80 patients who presented with complaints of shoulder pain at a single centre between January 2023 and January 2024. The supraspinatus muscle thickness, acromiohumeral distance, and coracohumeral distance measurements were obtained one week apart by two observers. The intraclass correlation coefficient (ICC), minimum detectable change, and standard error of measurement were subsequently calculated. Results: AHD intra-rater reliability results evaluated on coronal sections were excellent (Rater 1, ICC=0.96; 95% CI, 0.94-0.97; Rater 2 ICC=0.75; 95% CI, 0.61-0.84). AHD intra-rater reliability results evaluated on sagittal sections were excellent (Rater 1, ICC=0.94; 95% CI; 0.91-0.96; Rater 2 ICC=0.77; 95% CI, 0.64-0.85). The results of CHD measured using coronal sections were good (Rater 1, ICC=0.85; 95% CI, 0.76-0.90; Rater 2 ICC=0.82; 95% CI, 0.71-0.88). SMT measurement results measured using coronal sections were excellent (Rater 1, ICC=0.98; CI, 0.98-0.99; Rater 2, ICC=0.89; 95% CI, 0.82-0.93). The inter-rater reliability values were good for AHD-Coronal (ICC= 0.75; 95% CI, 0.61-0.84) and AHD-Sagittal (ICC=0.86; 95% CI, 0.79-0.91), were fair for CHD evaluated on coronal sections (ICC=0.74; %95 CI, 0.58-0.83), and were excellent for SMT evaluated on coronal sections (ICC=0.92; 95% CI, 0.87-0.95). Conclusion: These results suggest that magnetic resonance imaging measurements of the supraspinatus muscle thickness and acromiohumeral distance can be reliable and consistent for the clinical evaluation of patients with shoulder pain. [ABSTRACT FROM AUTHOR]

Objective: In this study, we aimed to discuss the neurological characteristics of our cases diagnosed with Sturge-Weber Syndrome with literature information. Material and Methods: The files of 12 patients diagnosed with Sturge-Weber syndrome between October 2013 and September 2023 at Bursa Uludağ University Faculty of Medicine Child Neurology Clinic were retrospectively evaluated. Results: Of the 12 patients diagnosed with Sturge-Weber syndrome, 7 (58.3%) were boys and 5 (41.7%) were girls. The median age of the cases was 143 months (minimum: 13, maximum: 251 months), and the median age at first presentation was 15.5 months (minimum: 0.13-maximum: 76 months). Considering the complaints at first admission, 6 (50%) cases presented with seizures, 4 cases complained of facial spots (33.3%), and 2 (16.7%) cases presented with seizures and facial spots. Considering the age of the first seizure, 7 out of 10 cases with seizures were under two years old. When the brain magnetic resonance imagines (MRI) of the patients were evaluated, MRIs in 3 (25%) cases were normal, leptomeningeal vascular anomaly or contrast enhancement in 7 (58.3%) cases, cerebral parenchymal obliteration/atrophy in 7 (58.3%) cases, cortical/gyral abnormalities in 6 (50%) cases. Calcification, transparenchymal vein dilatation/enlarged venous structures in 5 (41.7%) cases, enlarged choroid plexus in 2 (16.7%) cases, and thickened calvarium in 1 (8.3%) case were detected. Conclusion: SturgeWeber syndrome is a rare but multisystemic disease that affects many systems, characterized by leptomeningeal vascular malformation in the brain, port wine birthmark, and abnormal blood vessels in the eye. [ABSTRACT FROM AUTHOR]

Purpose: This study aimed at establishing a predictive method that consists of clinical, electrocardiographic (ECG), and laboratory parameters for myocardial fibrosis, especially as detected on cardiac magnetic resonance imaging (CMRI), in patients examined with suspicion of myocarditis. Materials and Methods: This study is a retrospective, single-centre study that includes patients admitted to our centre with suspected myocarditis between March 2020 and November 2023. Participants were categorised into two groups (myocardial fibrosis positive and myocardial fibrosis negative), and a detailed comparison of comorbidities, ECG changes, and laboratory parameters was performed. Multivariate analysis was conducted to identify independent predictors of myocardial fibrosis. A nomogram was constructed using the coefficients from the multivariate analysis to estimate the probability of myocardial fibrosis presence based on key predictors. Results: This study included 98 participants with a median age of 30 years, predominantly male (80.6%), with 14.3% having hypertension, 8.2% having diabetes mellitus, and 10.2% being smokers. The myocardial fibrosis-negative group exhibited higher levels of left ventricular ejection fraction and lymphocyte count. Conversely, the myocardial fibrosis-positive group showed higher levels of ECG changes at admission, peak C-reactive protein (CRP), CRP velocity, peak troponin, N-terminal pro-brain natriuretic peptide (NT-proBNP), monocytes, and platelets (PLT). In multivariate analysis, PLT, lymphocyte, monocyte, peak troponin, and ECG changes were identified as independent predictors of myocardial fibrosis. Receiving operating characteristic (ROC) curve analysis showed the model's diagnostic accuracy for predicting myocardial fibrosis (area under the ROC (AUC): 0.959, 95% confidence interval (CI), and p<0.001). Conclusion: This comprehensive analysis highlights the relationships between clinical and laboratory parameters and myocardial fibrosis and presents a predictive model with high diagnostic accuracy. [ABSTRACT FROM AUTHOR]

Purpose: The aim of this study is to investigate the value of radiomics analysis on T2-weighted Magnetic Resonance imaging (MRI) images in differentiating classical and nonclassical polycystic ovary syndrome (PCOS). Materials and Methods: A total of 202 ovaries from 101 PCOS patients (mean age of 23±4 years) who underwent pelvic MRI between 2014 and 2022, were included in the study. Of the patients, 53 (52.5%) were phenotype A, 12 (11.9%) were phenotype B, 25 were phenotype C (25.1%), and 11 were phenotype D (10.9%). 130 (64.4%) of the ovaries were classical PCOS, 72 (35.6%) were non-classical PCOS. The ovaries were manually segmented in all axial sections using the 3 D Slicer program. A total of 851 features were extracted. Python 2.3, Pycaret library was used for machine learning (ML) analysis. Datasets were randomly divided into train (70 %, 141) and test (30 %, 61) datasets. The performances of ML algorithms were compared with AUC, accuracy, recall, precision and F1 scores. Results: Accuracy and AUC values in the training set ranged from 57%-73% and 0.50-0.73, respectively. The two best ML algorithms were Random Forest (rf) (AUC:0.73, accuracy:73%) and Gradient Boosting Classifier (gbc) (AUC:0.71, accuracy:70%). AUC, accuracy, recall and precision values and F1 score of the blend model obtained from these two models were 0.70, 73 %, 56 %, 66%, 58%, respectively. Conclusion: Radiomic features obtained from T2W MRI are successful in distinguishing between classical and nonclassical PCOS. [ABSTRACT FROM AUTHOR]

Predicting Alzheimer's disease (AD) at an early stage can assist more successfully prevent cognitive decline. Numerous investigations have focused on utilizing various convolutional neural network (CNN)-based techniques for automated diagnosis of AD through resting-state functional magnetic resonance imaging (rs-fMRI). Two main constraints face the methodologies presented in these studies. First, overfitting occurs due to the small size of fMRI datasets. Second, an effective modeling of the 4D information from fMRI sessions is required. In order to represent the 4D information, some studies used the deep learning techniques on functional connectivity matrices created from fMRI data, or on fMRI data as distinct 2D slices or 3D volumes. However, this results in information loss in both types of methods. In order to model the spatiotemporal (4D) information of fMRI data for AD diagnosis, a new model based on the capsule network (CapsNet) and recurrent neural network (RNN) is proposed in this study. To assess the suggested model's effectiveness, experiments were run. The findings show that the suggested model could classify AD against normal control (NC) and late mild cognitive impairment (lMCI) against early mild cognitive impairment (eMCI) with accuracy rates of 94.5% and 61.8%, respectively. [ABSTRACT FROM AUTHOR]

Objective In recent years, migraine disease has been associated with changes in the cerebrovascular structure, especially in the development of infarctlike lesions in the posterior circulatory region. We think that the differences in the geometric structure of the vertebrobasilar system providing posterior circulation may be related to posterior cranial fossa (PCF) crowding. For this purpose, in this retrospective study, we investigated the relationship between the morphometric properties of PCF and migraine disease. Material and Method 60 patients diagnosed with migraine between the ages of 18-55 and 50 patients diagnosed with non-migraine patients were included in our study. Morphometric parameters, which are indicators of PCF, were measured on T1-weighted sagittal Magnetic Resonance (MR) images of patients. Results Anterior-posterior diameter of the prepontine distance was statistically significantly lower in migraine patients compared to the control group (p=0.006). There was no significant difference between the groups in PCF crowding. Conclusion In migraine patients, the short prepontine distance, which is one of the indicators of PCF crowding, may be a risk factor in the development of migraine disease by causing compression of the basilar artery or trigeminal nerve located in this space. [ABSTRACT FROM AUTHOR]

Aim: It was aimed to investigate the association between dynamic contrast-enhanced magnetic resonance imaging (MRI) findings and malignancy in suspicious MRI-only breast lesions performed by MR-guided biopsy. Material and Method: Between December 2014 and December 2020, 57 suspicious MRI-only lesions were identified. Among these, 46 lesions underwent MR-guided wire localization and excisional biopsy, while 11 underwent MR-guided core biopsy. Clinical data, MRI findings, biopsy results, and information about the MRguided biopsy procedures were collected. The predictive value of MRI findings in determining malignancy was analyzed. Results: According to biopsy results, 14 (24.6%) of the 57 lesions were malignant, and 43 (75.4%) were benign. The malignancy rate was significantly higher in lesions in the lower inner quadrant (55.5%, p=0.040) and those with a washout kinetic curve than those with persistent and plateau curves (p=0.034). Malignancy was detected in 83.3% of the lesions classified as BI-RADS-MRI category 5 versus only 17.6% of those classified as BI-RADS-MRI category 4 (p=0.006). Conclusion: Kinetic curve type and BI-RADS-MRI category were identified as MRI findings predicting the malignancy of lesions assessed by MR-guided biopsy. According to MR-guided biopsy, BI-RADS-MRI category 5 lesions and those with washout kinetic curves were significantly more likely to be malignant. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Ankara University Faculty of Medicine / Ankara Üniversitesi Tip Fakültesi Mecmuasi is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: This study aimed to examine the relationship of lumbar lordosis angle and lumbar muscle thickness with non-specific low back pain (LBP) through magnetic resonance imaging (MRI) images. Methods: The study included 96 individuals (43 men/53 women) aged between 18-65 with nonspecific LBP that is not explained by disc pathology based on MRI, who applied to affiliated Training and Research Hospital with the complaint of LBP between March-June 2019. Sociodemographic information was recorded using an LBP assessment form. The Oswestry LBP Disability Questionnaire was used for LBP disability. The thicknesses of muscle (m.) psoas major, m. multifidus, m. quadratus lumborum and m. erector spinae were measured corresponding to the L3-L4 vertebral level by using Radiant DICOM viewer program. The Cobb Angle method was used for lumbar lordosis angle determination. Measurements were made in three repetitions using the Radiant DICOM viewer program. Results: The results showed that an inverse relationship was found between the Oswestry Disability Index (ODI) and m. psoas major thickness (p<0.05). Given the comparison of rightleft side muscle thicknesses, left side muscles were thicker (p<0.05). There were no significant differences observed between males and females in terms of lumbar lordosis angle (LLA). However, in terms of muscle thickness, males exhibited higher values, except for the transverse measurements of the right quadratus lumborum and left erector spinae muscles, which showed no significant differences (p < 0.05). Furthermore, a positive correlation was found between LLA and the transverse thickness of the left psoas major muscle (p = 0.034) and the anterior-posterior thickness of the bilateral erector spinae muscles (p < 0.001). Conclusions: In regard to inverse relationship between m. psoas major thickness and ODI, m. psoas major should be taken into consideration to alleviate the disability caused by LBP. Additionally, the difference on both sides is likely one of the causes of muscle imbalance, and this might be one of the reasons for LBP, thereby causing disability in daily tasks due to LBP. [ABSTRACT FROM AUTHOR]

A 13-year-old male patient presented with right leg pain and walking difficulty. Contrast-enhanced magnetic resonance imaging showed a softtissue lesion between muscle groups in the anterior half of the right thigh. The excisional biopsy result ended in an inflammatory myofibroblastic tumor (IMT). The 18F-fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) scan showed hypermetabolism in the multifocal soft tissue lesion and also confirmed that no other distant foci were present. A three-phase Tc-99m-methylene diphosphonate study of the region showed heterogeneously increased vascularity within the region. We described an unusual case of IMT in a pediatric patient and the importance of PET/CT scanning to delineate the lesion. [ABSTRACT FROM AUTHOR]

Copyright of Current Research in Dental Sciences is the property of Ataturk University Coordinatorship of Scientific Journals and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Online Turkish Journal of Health Sciences (OTJHS) / Online Türk Sağlık Bilimleri Dergisi is the property of Oguz KARABAY and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: In this study, the utility of histogram parameters derived from diffusion-weighted imaging to differentiate renal cell carcinoma (RCC) from renal minimal fat angiomyolipoma (MFAML) was investigated. Methods: In this retrospective study, 98 patients who were histopathologically diagnosed with RCC and MFAML and who underwent magnetic resonance imaging (MRI) examinations between 2015 and 2022 were included. Demographic data, preoperative MRI findings, MRI apparent diffusion coefficient (ADC) histogram analyses, operation types, and postoperative histopathological data of the patients were recorded. The mean, minimum (min), maximum (max), 5th, 10th, 25th, 50th, 75th, 90th, and 95th percentiles as well as skewness, kurtosis, and variance of ADC values were calculated. Results: The study included 61 males and 37 females. Eighty eight of the patients had RCC and 10 had AML. In terms of age and gender, there was no significant difference between the two groups. The AML group's ADCmin, ADCmedian, ADCmean, ADCmax, 5th, 10th, 25th, 50th, 75th, 90th, and 95th percentiles were all lower than those of the RCC group. ADCmax value (p<0.001), as well as ADCmedian and the 50th, 75th, 90th, and 95th percentiles of ADC values (p<0.05), demonstrated a statistically significant difference. However, there was no statistical significance between ADCmin, ADCmean, and the 5th, 10th, and 25th percentiles of ADC values (p>0.05). The area under the curve, sensitivity, and specificity of the ADCmax value were 0.795, 62.4%, and 88.9%, respectively. Conclusion: A whole tumor histogram and textural analysis of ADC values could be useful in distinguishing MFAML from RCC. [ABSTRACT FROM AUTHOR]

Copyright of Namık Kemal Tıp Dergisi is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türk Radyoloji Seminerleri is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Sakarya Tıp Dergisi is the property of Sakarya Tip Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Necmettin Erbakan University Dental Journal (NEU Dent J) is the property of Necmettin Erbakan University Dental Journal (NEU Dent J) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Amaç: Erişkin kraniofarengiomaların bilgisayarlı tomografi(BT) ve manyetik rezonans görüntüleme(MRG) bulguları üzerinden, radyolojik özelliklerini ortaya koymak ve sellar – parasellar lezyonlardan ayırıcı tanısına katkıda bulunmak amaçlanmıştır. Gereç ve Yöntemler: 2005 – 2022 yılları arasında, histopatolojik açıdan “kraniofarengioma” tanısı doğrulanmış, erişkin hastalar merkezimiz veritabanı üzerinden retrospektif olarak taranmıştır. Olguların preoperatif hipofiz/kranial BT ve/veya kontrastlı hipofiz/kranial MRG görüntüleri iki radyolog tarafından değerlendirilmiş olup, araştırmacılar arasındaki uyumu belirlemek adına intraclass correlation coefficient(ICC) değeri hesaplanmıştır. Görüntüleme analizinde tümör boyutu, şekli, kalsifikasyon varlığı ve tipi, topografik ve morfolojik (kistik-solid) özellikleri, kistik ve solid komponentlerinin radyolojik karakteristikleri ve olası hidrosefali varlığı değerlendirilmiştir. Bulgular: 2005 ve 2022 yılları arasında, çalışma kriterlerine uyan 12 olgu tespit edilmiş olup, çalışma grubunda erkek dominansisi (2/1) izlenmiştir. Görüntüleme analizinde, kraniofarengioma lezyonlarının sıklıkla lobüle kontürlü olduğu(%75) ve yüksek oranda kalsifikasyon gösterdiği(%63.6) tespit edilmiştir. Lezyonların topografik değerlendirilmesinde en sık yerleşimin sellar-suprasellar psödo 3V tip(%41.7) olduğu saptanmıştır. Çalışma grubundaki olguların tamamında kistik komponent tespit edilmiş olup; lezyonların kistik komponenti MRG incelemelerinde T1A’da sıklıkla izointens(%41.6), T2A’da ise olguların önemli bir kısmında(%91.7) hiperintens sinyal özelliği gösterirken, lezyonların solid komponenti T1A görüntülerde ağırlıklı olarak izo-hafif hipointens(%83.3), T2A’da ise sıklıkla izo-hafif hiperintens(%66.6) olarak izlenmiştir. Post-kontrast serilerin değerlendirilmesinde tüm olgularda(%100) kontrast tutulumu saptanmıştır. Lezyonların solid komponentlerinde en sık retiküler paternde kontrastlanma izlenirken(%55.6), kistik komponentlerde kapsüler kontrastlanmanın sıklıkla(%72.7) ince düzgün, lineer rim tarzında olduğu dikkati çekmiştir. Ayrıca kraniofarengioma lezyonlarına, olguların %16.7’ sinde nonkominikan hidrosefalinin eşlik ettiği tespit edilmiştir. Sonuç: Erişkin kraniofarengiomaların radyolojik özellikleri lezyonun natürüne göre değişkenlik gösterebilmektedir. Kalsifikasyon varlığı, sellar – parasellar lezyonlar arasında kraniofarengiomayı öne çıkaran değerli bir radyolojik bulgudur.

ABSTRACT Intracranial pathologies can affect pituitary hormone levels whether they are primarily related to the pituitary gland or not. In pituitary hormone deficiencies, the size and location of the pituitary gland may be normal, as well as one or more hormone effects may be observed after hypoplasia, partial empty sella, ectopic neurohypophysis, Rathke's cleft cyst, adenomas and other pituitary masses or surgeries. In early puberty, the pituitary dimensions are usually increased, rarely hypoplasia and rathke cleft cyst are seen as MRI findings. Non-pituitary pathologies cause especially early puberty, single or multiple pituitary hormone deficiency. In this study, we aimed to categorize the patients with pituitary/cranial lesions and hormonal pathology and to determine their frequency and distribution in the single pediatric endocrinology clinic for ten years. The data of 485 patients, 186 (38.3%) male, were retrospectively analyzed. Their mean age was 9.3 ± 3.2 years. The incidental pituitary lesion was found in 28 (5.77%) of all cases. There was no hormonal influence in 20 (71.4%) of them. In most of the 454 cases with hormonal disorders, MRI (Magnetic Resonance Imaging) findings were normal in most of the 454 cases with hormonal disorders (71.8%). The most common hormonal pathologies were precocious puberty and isolated Growth Hormone deficiency, 57.9% and 26.4% respectively. Non-pituitary lesions (n=23, 5%) were most frequently accompanied by early puberty (39.1%). The hypothalamus-pituitary axis may be affected by primary lesions in its own region, or it may be seen as a result of other cranial pathologies. Cranial evaluation is also important in addition to pituitary imaging in pituitary hormone disorders.