Yazar "Ogul, Hayri" seçeneğine göre listele
Listeleniyor 1 - 20 / 44
Sayfa Başına Sonuç
Sıralama seçenekleri
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 Abnormal progression of brain herniation into intraosseous arachnoid granulation in a patient with metastatic lung carcinoma(Springer Heidelberg, 2024) Ogul, Hayri; Ay, Mutlu[No abstract available]Öğe Agenesis of Common Carotid Artery: Unusual Vascular Anomaly of the Neck(Sage Publications Inc, 2023) Ogul, Hayri; Gozgec, Elif; Kantarci, Mecit[No abstract available]Öğe Anomalous origin of the temporopolar artery from the internal carotid artery and aneurysms at the temporopolar and internal carotid arteries: a very rare case report(Springer France, 2023) Ay, Mutlu; Ogul, Hayri; Kantarci, MecitThe temporopolar artery (TPA) originates directly from the sphenoidal segment of the middle cerebral artery (MCA). Its originating from the M1 segment of the MCA as a branch of the anterior temporal artery is not uncommon. However, internal carotid artery origination is a very rare variation of the TPA. Here, we report a very rare case of the variant origin of the TPA and the presence of saccular aneurysm at this origin.Öğe Atypical articulation of the cervical rib and first rib(Springer India, 2024) Senocak, Eyup; Tuncer, Kutsi; Aydin, Yener; Ogul, HayriThe cervical rib is an additional rib arising from the transverse process of the seventh cervical vertebra. This rib may terminate free in soft tissue or may be attached to the first rib. The cervical rib is a congenital anomaly that occurs in less than 1% of the general population and sometimes causes severe symptoms of thoracic outlet syndrome. Hereby, we report a 13-year-old boy with an atypical articulation between the left seventh cervical rib and the left first thoracic rib.Öğe Bilateral Epineurial Pseudocyst of Intratemporal Facial Nerve(Sage Publications Inc, 2024) Gozgec, Elif; Ogul, Hayri; Sakat, Muhammed Sedat[No abstract available]Öğe A Case of Giant Retropharyngeal Lipoma Causing Airway Obstruction(Sage Publications Inc, 2024) Gozgec, Elif; Ogul, Hayri[No abstract available]Öğe A Case of Pulmonary and Central Nervous System Invasive Aspergillosis with Characteristic Radiological Findings(Soc Turkish Intensivists - Sti, 2024) Akbas, Turkay; Karahan, Fatih; Ogul, Hayri; Onec, Birgul; Onmez, Attila; Unlu, Nisa; Balbay, Ege GulecCentral nervous system invasive aspergillosis is a rare fatal infection responsible for the majority of brain lesions in immunocompromised patients. A 56-year-old man with diabetes mellitus and non-Hodgkin's lymphoma was admitted to the emergency department with a diagnosis of pneumonia-related sepsis. At presentation, cranial computed tomography (CT) and magnetic resonance imaging were normal, but thoracic CT revealed right lung pneumonia, and antibiotic therapy was initiated. Control CT scans performed on the 13th day of admission because the patient had subsequently become hypotensive and somnolent revealed halo signs in the lungs and multiple hypodense lesions within the cerebrum, consistent with invasive aspergillosis. A post-contrast cranial CT scan also revealed vascular enhancement within the hypodense lesions, known as the central vascular sign. In conclusion, central nervous system aspergillosis can be diagnosed by means of tubular enhanced focuses in hypodense lesions on contrast-enhanced CT scans.Öğe A Case of Pulmonary and Central Nervous System Invasive Aspergillosis With Characteristic Radiological Findings(Soc Turkish Intensivists - Sti, 2024) Akbas, Turkay; Karahan, Fatih; Ogul, Hayri; Onec, Birgul; Onmez, Attila; Unlu, Nisa; Balbay, Ege GulecCentral nervous system invasive aspergillosis is a rare and fatal infection that accounts for the majority of brain lesions in immunocompromised patients. A 56-year-old man with diabetes mellitus and non-Hodgkin's lymphoma was admitted to the emergency department with a diagnosis of pneumonia-related sepsis. At presentation, cranial computed tomography (CT) and magnetic resonance imaging were normal. However, thoracic CT revealed right lung pneumonia, and antibiotic therapy was initiated. Control CT scans performed on the 13(th) day of admission-because the patient had subsequently become hypotensive and somnolent- revealed halo signs in the lungs and multiple hypodense lesions within the cerebrum, consistent with invasive aspergillosis. A post-contrast cranial CT scan also revealed vascular enhancement within these hypodense lesions, known as the central vascular sign. In conclusion, central nervous system aspergillosis can be diagnosed by means of tubular enhanced foci in hypodense lesions on contrast-enhanced CT scans.Öğe Coexistence of Right Cervical Rib and Left Rudimentary 1st Thoracic Rib(Springer India, 2024) Tuncer, Kutsi; Ulas, Ali Bilal; Aydin, Yener; Ogul, Hayri; Eroglu, AtillaRib anomalies are rare congenital anomalies that do not usually cause additional symptoms, can be seen together with some other developmental defects, and whose frequency varies according to ethnicity and age in the society. Congenital anomalies of the ribs include short rib, pseudoarthrosis of the first rib, intrathoracic rib, pelvic rib, cervical rib, forked rib, rib fusion, and rib bridging. In this study, the coexistence of the right cervical rib and the left rudimentary 1st thoracic rib was presented in a 56-year-old female case.Öğe Comparison of conventional MR arthrography and 3D volumetric MR arthrography in detection of cartilage defects accompanying glenoid labrum pathologies(Springer, 2024) Gokce, Ayse; Guclu, Derya; Unlu, Elif Nisa; Kazoglu, Ibrahim; Arican, Mehmet; Ogul, HayriObjectivesIn this study, we aimed to compare conventional and T1-weighted volumetric magnetic resonance arthrography (MRA) in the diagnosis and grading of glenoid cartilage defects that accompany labral pathologies.Materials and methodsA total of 79 patients who were prediagnosed with labrum pathologies based on shoulder magnetic resonance imaging (MRI) had MRA and CTA between December 2021 and May 2022. CTA was regarded as reference standard. CTA images were examined by a radiologist experienced in musculoskeletal radiology, and MRA images were examined by two radiologists independently to determine presence, grade, and localization of any glenoid cartilage defect, if present. Sensitivity, specificity, and accuracy were calculated separately for conventional and T1-weighted volumetric MRA. In addition, at the last stage, two observers examined all MRAs together, and the presence of a cartilage defect was decided by consensus, and the overall sensitivity, specificity, and accuracy were calculated.ResultsCartilage defect was detected on CTAs of 48 (60.75%) cases of among 79 patients with labrum pathology. The sensitivity, specificity, and accuracy of conventional MRA for two examiners were 17-19%, 100-100%, and 49-51%, respectively, while those values were 67-65%, 92-97%, and 84-77%, respectively, for T1-weighted volumetric MRA. Inter-examiner agreement was excellent for diagnosis of cartilage defects on all MRAs. The overall sensitivity, specificity, and accuracy for detection of glenoid cartilage lesions by MRA were 69%, 97%, and 80%, respectively.ConclusionT1-weighted volumetric MRA seems to demonstrate cartilage defects accompanied with labrum pathologies accurately with high sensitivity, specificity, and excellent inter-examiner agreement.Öğe Fenestration aneurysm of the basilar artery(Ma Healthcare Ltd, 2023) Ay, Mutlu; Ogul, Hayri; Kantarci, Mecit[No abstract available]Öğe Hydatid cyst in multiple locations(Ma Healthcare Ltd, 2023) Aydin, Yener; Ogul, Hayri; Eren, Suat[No abstract available]Öğe Infraorbital nerve involvement as a pathognomonic sign of IgG4-related ophthalmic disease(Elsevier France-Editions Scientifiques Medicales Elsevier, 2024) Ogul, Hayri[No abstract available]Öğe Intersection syndrome(Elsevier France-Editions Scientifiques Medicales Elsevier, 2024) Tas, Nurmuhammed; Ogul, Hayri; Kantarci, Mecit[No abstract available]Öğe Investigation of incidental findings of temporomandibular joint disorders on brain magnetic resonance imaging in three-dimensional T2-weighted SPACE sequence performed for brain imaging(Baycinar Medical Publ-Baycinar Tibbi Yayincilik, 2024) Samancı, Rümeysa; Ogul, Hayri; Gökce, Ayşe; Kaya, Abdulkadir; Ataoglu, SafinazObjectives: The study aimed to determine the temporomandibular joint (TMJ) findings, to investigate the prevalence contribution of this sequence on cases in which cranial magnetic resonance examination was performed and three-dimensional (3D) T2-SPACE (T2-weighted sampling perfection with application-optimized contrasts using different flip-angle evolutions) sequence was used by retrospectively scanning the magnetic resonance imaging (MRI) archive of our hospital, and to reveal the advantages of the 3D-T2 SPACE sequence in patients with TMJ disorders. Patients and methods: The cross-sectional retrospective study was conducted with 499 patients (289 females, 210 males; mean age: 50.1 +/- 17.7 years; range, 8 to 92 years) who underwent brain MRI and had 3D-T2 SPACE between March 1, 2021 and March 1, 2022. Two radiologists analyzed the TMJs of the subjects included in the study in 3D-T2 SPACE sequences. Results: At least one incidental finding was detected in the TMJ in 37.1% (n=185) of the patients included in our study. In our study, the most common (13.6%) MRI findings were osteoarthritic changes and synovial cysts. Joint effusion (13.2%) and disc displacement (9%) were less frequent. When the relationship between the age of the patients and the presence of incidental findings, degeneration, effusion, disc displacement, and cyst was examined, the age of the patients with incidental findings (p=0.001) and osteoarthritic changes (p<0.001) was statistically significantly higher. Conclusion: Incidental findings, particularly osteoarthritic changes and synovial cysts, can be seen quite commonly in the TMJ in brain MRI using 3D T2-SPACE sequences in the general population. The 3D T2-SPACE sequence provides valuable information in the recognition of TMJ disorders.Öğe Left lower lobe bronchus originating from the right intermediate bronchus(Oxford Univ Press Inc, 2024) Aydin, Yener; Ogul, Hayri; Ulas, Ali Bilal; Bicakcioglu, Pinar; Eroglu, Atilla[No abstract available]Öğe Magnetic resonance arthrographic demonstration of extension of labral defects in paraglenoid labral cysts(Assoc Medica Brasileira, 2023) Kaya, Serhat; Ogul, Hayri; Koksal, Ali; Koru, Ahmet; Kiziloglu, Alper; Kantarci, MecitOBJECTIVE: This study aimed to investigate the extension of labral tears associated with paraglenoid labral cysts by magnetic resonance arthrography. METHODS: The magnetic resonance and magnetic resonance arthrography images of patients with paraglenoid labral cysts who presented to our clinic between 2016 and 2018 were examined. In patients with paraglenoid labral cysts, the location of the cysts, the relation between the cyst and the labrum, the location and extent of glenoid labrum damage, and whether there was contrast medium passage into the cysts were investigated. The accuracy of magnetic resonance arthrographic information was evaluated in patients undergoing arthroscopy. RESULTS: In this prospective study, a paraglenoid labral cyst was detected in 20 patients. In 16 patients, there was a defect in the labrum adjacent to the cyst. Seven of these cysts were adjacent to the posterior superior labrum. In 13 patients, there were contrast solution leak into the cyst. For the remaining seven patients, no contrast-medium passage was observed in the cyst. Three patients had sublabral recess anomalies. Two patients had rotator cuff muscle denervation atrophy accompanying the cysts. The cysts of these patients were larger compared to those of the other patients. CONCLUSION: Paraglenoid labral cysts are frequently associated with the rupture of the adjacent labrum. In these patients, symptoms are generally accompanied by secondary labral pathologies. Magnetic resonance arthrography can be successfully used not only to demonstrate the association of the cyst with the joint capsule and labrum, but also to reliably demonstrate the presence and extension of labral defects.Öğe Organizing pneumonia: a rare complication of a complicated(Soc Brasileira Medicina Tropical, 2023) Aydin, Yener; Ogul, Hayri; Ulas, Ali Bilal[No abstract available]
- «
- 1 (current)
- 2
- 3
- »