Person: ÖZDEMİR, HÜSEYIN
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HÜSEYIN
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ÖZDEMİR
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Publication Metadata only Anthrax of the gastrointestinal tract and oropharynx: CT findings.(2010-03-01T00:00:00Z) Ozdemir, Hüseyin; Demirdag, Kutbettin; Ozturk, Tulin; Kocakoc, Ercan; ÖZDEMİR, HÜSEYINPublication Metadata only MRI findings in crural compartment syndrome: A case series(2014-01-01) YILMAZ, TEMEL FATİH; TOPRAK, HÜSEYİN; Bilsel, Kerem; ÖZDEMİR, HÜSEYİN; ARALAŞMAK, AYŞE; ALKAN, ALPAY; YILMAZ, TEMEL FATİH; TOPRAK, HÜSEYİN; BİLSEL, İSMAIL KEREM; ÖZDEMİR, HÜSEYIN; ARALAŞMAK, AYŞE; ALKAN, ALPAYPublication Metadata only Dorsolateral Prefrontal Cortex Volumes Remained Unchanged in Obsessive Compulsive Disorder(2013-03-01T00:00:00Z) Ozdemir, HÜSEYİN; Atmaca, Murad; Yildirim, Hanefi; Gurok, M. Gurkan; ÖZDEMİR, HÜSEYINBackground:The dorsolateral prefrontal cortex (DLPFC) is an important prefrontal section of cortex, associated with executive functions, attention, nonverbal memory, and visuospatial skills, which have been reported to be disabled in OCD. In addition, neurochemical alterations of the DLPFC have been reported in OCD.Publication Metadata only Comparison of TOF MRA, Contrast-Enhanced MRA andSubtracted CTA from CTP in Residue Evaluation of TreatedIntracranial Aneurysms(2017-08-20) dündar, tolga; ARALAŞMAK, AYŞE; ÖZDEMİR, HÜSEYİN; SEYİTHANOĞLU, MEHMET HAKAN; UYSAL, ÖMER; TOPRAK, HÜSEYİN; KİTİŞ, SERKAN; özek, erdinç; ALKAN, ALPAY; ARALAŞMAK, AYŞE; ÖZDEMİR, HÜSEYIN; SEYİTHANOĞLU, MEHMET HAKAN; UYSAL, ÖMER; TOPRAK, HÜSEYİN; ALKAN, ALPAYPublication Metadata only Comparison of TOF MRA, Contrast-Enhanced MRA and Subtracted CTA from CTP in Residue Evaluation of Treated Intracranial Aneurysms(2018-01-01) Dundar, TOLGA TURAN; Kits, Serkan; Ozdemir, HÜSEYİN; Seyithanoglu, MEHMET HAKAN; Uysal, Omer; Toprak, HÜSEYİN; Ozek, ERDİNÇ; Alkan, ALPAY; DÜNDAR, TOLGA TURAN; ARALAŞMAK, AYŞE; ÖZDEMİR, HÜSEYIN; SEYİTHANOĞLU, MEHMET HAKAN; UYSAL, ÖMER; TOPRAK, HÜSEYİN; KİTİŞ, SERKAN; ÖZEK, ERDİNÇ; ALKAN, ALPAYAIM: To compare effectiveness of contrast-enhanced magnetic resonance angiography (CE-MRA), 3D-Time-of-flight magnetic resonance angiography (3D-TOF-MRA) and subtracted computed tomography angiography from computed tomography perfusion (sub-CTA) in residue evaluation of intracranial aneurysms treated either with coiling or clipping.Publication Metadata only Cavernous Sinus: A Comprehensive Review of its Anatomy, Pathologic Conditions, and Imaging Features(2015-06-01) BAKAN, A. A.; Alkan, ALPAY; KURTCAN, SERPİL; ARALASMAK, AYŞE; TOKDEMIR, SEVİL; MEHDI, E.; OZDEMIR, HÜSEYİN; ALKAN, ALPAY; KURTCAN, SERPİL; ARALAŞMAK, AYŞE; TOKDEMİR, SEVİL; ÖZDEMİR, HÜSEYINThe purpose of this article was to review the anatomy of the cavernous sinus (CS), illustrate numerous lesions that can affect the CS, and emphasize the imaging characteristics for each lesion to further refine the differential diagnoses. The CS, notwithstanding its small size, contains a complicated and crucial network that consists of the carotid artery, the venous plexus, and cranial nerves. The wide-ranging types of pathologies that can involve the CS can be roughly classified as tumoral, congenital, infectious/inflammatory/granulomatous, and vascular. Conditions that affect the CS usually lead to symptoms that are similar to each other; thus, for diagnosis, imaging procedures are required. Radiological evaluations are also required to detect pre- and postoperative CS invasion. Magnetic resonance imaging, which can be supplemented with thin-section contrast-enhanced sequences, is the preferred imaging technique for evaluating the CS. For correct diagnosis of CS lesions and accurate evaluations of CS invasions, it is essential to carefully analyze the anatomical structures within the CS and to acquire precise knowledge about the imaging features of CS lesions, which may frequently overlap.Publication Open Access Venous drainage patterns in carotid cavernous fistulas(2017-01-01) ARALAŞMAK, AYŞE; KARAALİ, KAMİL; ÖZDEMİR, HÜSEYİN; ALKAN, ALPAY; TOPRAK, HÜSEYİN; SİNDEL, TİMUR; ŞENOL, UTKU; ÇEVİKOL, CAN; ARALAŞMAK, AYŞE; TOPRAK, HÜSEYİN; ÖZDEMİR, HÜSEYIN; ALKAN, ALPAYPurpose. The carotid-cavernous fistula (CCF) is an abnormal arteriovenous communication and its drainage pathways may affect the clinic presentation and change treatment approach. We evaluated drainage patterns of CCFs by digital subtraction angiography (DSA) and categorized drainage pathways according to their types and etiology. Materials and Methods. Venous drainage patterns of 13 CCFs from 10 subjects were studied and categorized as anterior, posterior, superior, inferior, and contralateral on DSA. Drainage patterns were correlated to types and etiology of CCFs. Diagnosis of CCFs was first made by noninvasive imaging techniques. Results. On DSA, traumatic CCFs were usually high flow, direct type while spontaneous CCFs were usually slow flow, indirect type. Bilaterality and mixed types were observed among the indirect spontaneous CCFs. In all CCFs, anterior and inferior drainages were the most common. Contrary to the literature, posterior and superior drainages were noted only in high flow and long standing direct fistulas. Contralateral drainage was not observed in all, supporting plausible compartmentalization of cavernous sinuses. Conclusion. Types, etiology, and duration of the CCFs may affect their drainage patterns. DSA is valuable for categorization of CCFs and verification of drainage patterns. Drainage pathways may affect the clinic presentation and also change treatment approach.Publication Metadata only An Unusual Complication of Transarterial Chemoembolization of Hepatocellular Carcinoma; Pseudoaneurysm: A Case Report(2022-01-01T00:00:00Z) Atay, Musa; ÖZDEMİR, Hüseyin; ÖZDEMİR, HÜSEYINBackground: Transarterial Chemoembolization (TACE) is a globally recognised treatment method for hepatic tumors, especially unresectable Hepatocellular Carcinoma (HCC). Although the technique is relatively safe, it may cause serious complications, such as liver abscess, liver failure, and non-target embolization. Here, the case of a rare complication of TACE is presented. Case Presentation: A-55-year-old male patient was referred to the interventional radiology department for surgically unresectable HCC. CT scan showed a heterogeneously enhancing lesion with capsular enhancement consistent with HCC. On MRI examination, a central necrotic part was seen within the lesion, and TACE was performed. At the end of the TACE, a pseudoaneurysm of the hepatic artery was detected, which was successfully embolized with pushable micro-coils. Conclusion: To the best of our knowledge, very few cases of pseudoaneurysm of the hepatic artery have been described in the literature, and in those cases, the cause has been thought to be guidewire manipulation. In contrast, in the current case, it was thought that it might occur due to central necrosis and central perfusion insufficiency of the lesion. Pseudoaneurysm is a treatable condition with coil embolization.Publication Metadata only Diffusion weighted MR findings in the substantia nigra in Parkinson-s disease(2013-06-01T00:00:00Z) BERILGEN, M. S.; Ozdemir, HÜSEYİN; DAS, C.; DEMIR, C. F.; ÖZDEMİR, HÜSEYINPublication Open Access Unusual sclerosing orbital pseudotumor infiltrating orbits and maxillofacial regions(2014-05-01) TOPRAK, HÜSEYİN; ARALAŞMAK, AYŞE; YILMAZ, TEMEL FATİH; ÖZDEMİR, HÜSEYİN; TOPRAK, HÜSEYİN; ARALAŞMAK, AYŞE; YILMAZ, TEMEL FATİH; ÖZDEMİR, HÜSEYINIdiopathic orbital pseudotumor (IOP) is a benign inflammatory condition of the orbit without identifiable local or systemic causes. Bilateral massive orbital involvement and extraorbital extension of the IOP is very rare. We present an unusual case of IOP with bilateral massive orbital infiltration extending into maxillofacial regions and discuss its distinctive magnetic resonance imaging (MRI) features that help to exclude other entities during differential diagnoses.