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Öğe The 2D and 3D MR arthrographic description of aponeurotic expansion of supraspinatus tendon and biceps tendon anomaly in a large patient cohort(Springer, 2024) Guclu, Derya; Ogul, Hayri; Unlu, Elif Nisa; Tuncer, Kutsi; Kose, Mehmet; Kantarci, Mecit; Eren, SuatObjectiveTo describe the aponeurotic expansion of supraspinatus tendon (AEST) and biceps tendon abnormalities with magnetic resonance (MR) arthrographic examinations and determine their prevalence in patients, we performed a high-resolution 3D direct MR arthrography.Materials and methodsThis was a retrospective study of 700 shoulder MR arthrograms performed between May 2010 and January 2022. Extension in the coronal plane of an AEST on 3D fat-suppressed T1-weighted volumetric interpolated breath-hold examination (VIBE) MR arthrography was identified. Based on its morphology, the AEST on MR arthrography was divided into four subtypes: absence of tendinous thickness in the bicipital synovial surface or intra-synovial tendon-like structure in the bicipital groove, thin and flat tendinous thickness & GE;1 mm of bicipital synovium, oval tendinous structure less than half the size of the adjacent biceps tendon, oval tendinous structure more than half the size of the adjacent biceps tendon, and oval tendinous structure larger than the adjacent biceps tendon. Based on its origin and termination, aponeurotic expansions can be divided into three subtypes: proximal pulley zone, middle humeral neck zone, and distal myotendinous junction zone. Association with the biceps synovium of the AEST was categorized into three types: intra-synovial, extra-synovial, and trans-synovial.ResultsAn AEST in the anterior shoulder joint in 3D VIBE MR arthrography images was identified in 63 (9%) of 700 arthrograms. The most common arthrographic type of AEST was type 1-this was detected in 39 of 63 patients. The most common course type of the AEST was anteriorly midline. The most common distal insertion type was at the tenosynovial sheath of the long head of the biceps tendon (LHBT) in the middle humeral neck zone-this was detected in 31 of 63 patients. There were only 10 MR arthrograms biceps tendon abnormality, including 4 biceps agenesis and 6 split ruptures.ConclusionA 2D and high-resolution 3D MR arthrography can demonstrate the anatomical detail around the bicipital groove and facilitate the differentiation between a biceps tendon anomaly and an AEST. On high-resolution 3D MR arthrographic images, the AEST tends to be in the anterior midline and anteromedial portions of the biceps synovium with intra-synovial, extra-synovial, and trans-synovial courses and its three different insertion types.Öğe The 2D and 3D MR arthrographic description of aponeurotic expansion of supraspinatus tendon and biceps tendon anomaly in a large patient cohort (Jul, 10.1007/s00256-023-04409-1, 2023)(Springer, 2024) Guclu, Derya; Ogul, Hayri; Unlu, Elif Nisa; Tuncer, Kutsi; Kose, Mehmet; Kantarci, Mecit; Eren, Suat[No abstract available]Öğe Bilateral Masticator Space Metastasis of Breast Cancer Mimicking Abscess(Sage Publications Inc, 2023) Gözgeç, Elif; Oğul, Hayri; Eren, SuatMetastasis to the masticator space and mandible is very rare. The most common origin in women is breast cancer. Cystic metastases may radiologically mimic abscess. Definitive diagnosis can be made histopathologically. The prognosis of these patients is very poor and early diagnosis is important. Therefore, metastasis should be considered in the differential diagnosis of oral lesions.Öğe Detection of the glenoid bare spot by non-arthrographic MR imaging, conventional MR arthrography, and 3D high-resolution T1-weighted VIBE MR arthrography: comparison with CT arthrography(Springer, 2023) Özel, Mehmet Ali; Oğul, Hayri; Köksal, Ali; Köse, Mehmet; Tuncer, Kutsi; Eren, Suat; Kantarcı, MecitObjectivesTo determine the diagnostic accuracy of non-arthrographic MR imaging, conventional MR arthrography, and 3D T1-weighted volumetric interpolated breath-hold examination (VIBE) MR arthrography sequences as compared with a CT arthrography in the diagnosis of glenoid bare spot.MethodsA retrospective study of 216 patients who underwent non-arthrographic MR imaging, conventional MR arthrography, VIBE MRI arthrography, and CT arthrogram between January 2011 and March 2022 was conducted. The diagnostic accuracy of non-arthrographic MR imaging, direct MR arthrography, and VIBE MRI arthrography in the detection of glenoid bare spot was compared with that of CT arthrography. All studies were reviewed by 2 MSK radiologists. Interobserver agreement for MR imaging and MR arthrographic findings was calculated.ResultsSixteen of 216 patients were excluded. Twenty-three of 200 shoulders had glenoid bare spot on CT arthrographic images. The glenoid bare spot was detected in 11 (47.8%) and 7 (30.4%) patients on conventional non-arthrographic MR images and in 18 (78.3%) and 16 (69.6%) patients on conventional MR arthrograms by observers 1 and 2, respectively. Both observers separately described the bare spot in 22 of 23 patients (95.7%) on 3D volumetric MR arthrograms. Interobserver variabilities were fair agreement for conventional non-arthrographic MR imaging (kappa = 0.35, p < 0.05), moderate agreement for conventional MR arthrogram (kappa = 0.50, p < 0.05), and near-perfect agreement for 3D volumetric MR arthrogram reading (kappa = 0.87, p < 0.05).ConclusionsA 3D high-resolution T1-weighted VIBE MR arthrography sequence may yield diagnostic performance that is comparable with that of CT arthrography in the diagnosis of glenoid bare spot.Öğe Diffuse alveolar echinococcosis(Ediciones Doyma, S.L., 2023) Aydın, Yener; Oğul, Hayri; Eren, Suat[No abstract available]Öğe Hydatid cyst in multiple locations(Ma Healthcare Ltd, 2023) Aydin, Yener; Ogul, Hayri; Eren, Suat[No abstract available]Öğe Imaging Aspects of Hepatic Alveolar Echinococcosis: Retrospective Findings of a Surgical Center in Turkey(Mdpi, 2022) Kantarcı, Mecit; Aydın, Sonay; Eren, Suat; Oğul, Hayri; Akhan, OkanRadiologists should be aware of the findings of alveolar echinococcosis (AE) due to the diagnostic and management value of imaging. We are attempting to define the most common diagnostic imaging findings of liver AE, along with the prevalence and distribution of those findings. The patients' US, CT, and MRI images were reviewed retrospectively. CT images were acquired with and without the administration of contrast medium. The MRI protocol includes T2-weighted images (WI), diffusion (WI), apparent diffusion coefficient (ADC) maps, and pre- and post-contrast T1WIs. The current study included 61 patients. The mean age of the population was 58.2 +/- 9.6 years According to Kratzer's categorization (US), 139 lesions (73.1%) were categorized as hailstorm. According to Graeter's classification (CT), 139 (73.1%) lesions were type 1-diffuse infiltrating. The most frequent types were Kodama type 2 and 3 lesions (MRI) (42.6% and 48.7%, accordingly). P2N0M0 was the most frequent subtype. The current study defines the major, characteristic imaging findings of liver AE using US, CT, and MRI. Since US, CT, and MRI have all been utilized to diagnose AE, we believe that a multi-modality classification system is needed. The study's findings may aid radiologists in accurately and timely diagnosing liver AE.Öğe Intracranial dermoid cyst mimicking a thrombosed giant aneurysm of the anterior communicating artery(Ma Healthcare Ltd, 2022) Oğul, Hayri; Köksal, Ali; Kaya, Serhat; Kantarcı, Mecit; Eren, Suat[Bastract Not Available]Öğe Pulmonary diffuse calcified multiple nodules in alveolar echinococcosis(Springer India, 2024) Aydin, Yener; Eren, Suat; Ogul, HayriAlveolar echinococcosis is a potentially life-threatening parasitic disease primarily involving the liver caused by echinococcus multilocularis. Alveolar echinococcosis shows tumor-like growth that can lead to infiltration of neighboring organs. It is a slowly progressive disease and most commonly metastasizes to the lung. In this study, a 45-year-old female case of alveolar echinococcosis with bilateral pulmonary diffuse calcified multiple nodules metastases is presented.