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, ALPAY

AIM: 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.

2023-10-01, Ceylan S., ÖZDEMİR H., Aydin M. S., ÖZDEMİR, HÜSEYIN

OBJECTIVE: Thermal therapy has existed for thousands of years and dates back to ancient civilizations such as the Finns, Romans, ancient Chinese, American Indians, and Egyptians. Sun therapy is a form of natural Far Infrared Rays (FIR) thermal therapy. Far infrared rays are invisible rays with the longest wavelength of natural sunlight. However, sunbathing should only be done in moderation, as sunlight contains ultraviolet rays that can burn and damage the skin. More than 30 million people in Asia, Europe, and Australia receive Far Infrared Therapy with FIR lamps. They emit 2-25-micron wavebands. We aimed to investigate whether FIR therapy that uses a similar waveband improves sinusitis symptoms. MATERIALS AND METHODS: This study was conducted on 10 New Zealand rabbits of both sexes, 7-8 months old, with an average weight of 1.8-2.4 kg. They were divided into four study groups. Sinusitis was induced in rabbits by blocking the sinus ostium, whereas some were left as control. Far infrared treatment with an infra-sin device was given with or without antibiotics. Mucosal samples were evaluated microscopically regarding epithelial eruption, epithelial vacuolization, interstitial edema, vascular congestion, leukocyte infiltration, and mucosal thickening. RESULTS: We found clinical and histopathological improvements in rabbits with sinusitis on the right side of the nose, to which we applied FIR treatment with the device Infra-Sin. CONCLUSIONS: Our findings in this animal study led us to conclude that it would be beneficial to study the effects of FIR treatment on people with allergic rhinitis and sinusitis and to identify the optimal dosing, treatment duration, and intensity. To add to our findings, looking into whether FIR therapy can be used as an alternative to antibiotic treatment for human sinusitis is essential.

2014-05-01, TOPRAK, HÜSEYİN, ARALAŞMAK, AYŞE, YILMAZ, TEMEL FATİH, ÖZDEMİR, HÜSEYİN, TOPRAK, HÜSEYİN, ARALAŞMAK, AYŞE, YILMAZ, TEMEL FATİH, ÖZDEMİR, HÜSEYIN

Idiopathic 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.

2016-04-01, Erdogan, EZGİ BAŞAK, Ozdemir, HÜSEYİN, Aydin, MEHMET, ERDOĞAN, EZGİ BAŞAK, ÖZDEMİR, HÜSEYIN, AYDIN, MEHMET

Although curative treatment is surgery (resection/transplantation) and for small lesions ablative strategies, in primary liver carcinomas such as hepatocellular carcinoma and cholangiocellular carcinoma, palliative treatment is used for most of these patients because of lack of surgical options. These treatments are regional treatments such as transarterial chemoembolization, radiofrequency ablation, or microwave ablation and systemic treatments such as tyrosine kinase inhibitors. Surgery and chemotherapy are the main treatment options for metastatic liver tumors, particularly in colorectal tumors, although local treatment options are used for these patients. In recent years, transarterial radioembolization with yttrium-90 microsphere has emerged as a local treatment option in primary and metastatic liver tumors. The aim of this treatment is to provide an effective radiation dose distribution for the tumor in the liver tissue and to give the lowest dose in order to not harm the intact liver tissue. Radioembolization has proven to be as effective as other available palliative treatments in primary and secondary liver tumors and is a treatment method that is well tolerated. It has a risk for serious life-threatening complications, although this rate is low. Toxicity can be kept at a minimum with adequate technical and rigorous application in experienced hands and in accordance with multidisciplinarity. It is hoped that the effectiveness of radioembolization is further increased in the future by technological developments, researches on dosimetry, its use along with radiosensitizing agents, and various treatment combinations.

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, ALPAY

Purpose. 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.