Yazar "Kahraman, Aysegul" seçeneğine göre listele
Listeleniyor 1 - 12 / 12
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Bilateral Lower Limb Edema Caused by Compression of the Retrohepatic Inferior Vena Cava by a Giant Hepatic Hemangioma(Int College Of Surgeons, 2013) Akbulut, Sami; Yilmaz, Mehmet; Kahraman, Aysegul; Yilmaz, SezaiHemangiomas are the most common benign primary tumors of the liver and their prevalence ranges from 0.4% to 20%. Approximately 85% of hemangiomas are clinically asymptomatic and are incidentally detected in imaging studies performed for other causes. In a very small minority of patients, nausea, vomiting, abdominal pain, distension, palpable mass, obstructive jaundice, bleeding, and signs and symptoms of Budd-Chiari syndrome may develop due to compression of bile duct, hepatic vein, portal vein, and adjacent organs. Occasionally, external compression of inferior vena cava may lead to edema and/ or indirect symptoms such as deep vein thrombosis of the lower limbs. In this report, we present a case of giant hepatic hemangioma that completely filled the right lobe of the liver. The patient presented with bilateral lower limb edema and pain. A computed tomography scan detected a 9 x 11 x 12 cm mass indicative of a hemangioma in the right lobe of the liver that compressed the inferior vena cava. The patient refused treatment initially but returned 6 months later presenting with the same symptoms. At that time, the mass had increased in size and a hepatectomy was performed, preserving the middle hepatic vein. By postoperative month 13, the swelling in the lower extremities had decreased significantly and the inferior vena cava appeared normal.Öğe Budd Chiari Syndrome Secondary to Compressive Effect of Giant Hydatid Cyst(Wiley-Blackwell, 2012) Yilmaz, Mehmet; Ozdemir, Fatih; Akbulut, Sami; Kahraman, Aysegul; Yilmaz, Sezai[Abstract Not Available]Öğe Budd-Chiari syndrome due to giant hydatid cyst: a case report and brief literature review(J Infection Developing Countries, 2013) Akbulut, Sami; Yilmaz, Mehmet; Kahraman, Aysegul; Yilmaz, SezaiBudd-Chiari syndrome is an uncommon disorder characterized by the thrombotic or non-thrombotic obstruction of hepatic venous outflow anywhere along the venous course from the hepatic venules to the junction of the inferior vena cava and the right atrium. The etiology of Budd-Chiari syndrome is classified as primary, attributable to intrinsic intraluminal thrombosis or the development of venous webs; or secondary, caused by intraluminal invasion by a parasite or malignant tumor or extraluminal compression by an abscess, solid tumor, or cyst, such as a hydatid cyst. In this study, we present a case of a giant hydatid cyst manifesting Budd-Chiari syndrome symptoms and signs by compressing the inferior vena cava and hepatic veins. In brief, the case demonstrates that hydatid disease should be considered in the differential diagnosis of Budd-Chiari Syndrome in areas such as Turkey, where hydatid disease is endemic.Öğe Diffusion-Weighted Magnetic Resonance Imaging and Magnetic Resonance Spectroscopy Features of Abdominal Viscera in a Patient with Gaucher's Disease(Univ Sains Malaysia, Sch Medical Sciences, 2014) Kalayci, Tugce Ozlem; Erdem, Gulnur; Kutlu, Ramazan; Kahraman, Aysegul; Alkan, AlpayA 46-year-old woman with Gaucher's disease (GD) consulted our clinic for abdominopelvic magnetic resonance imaging (MRI), as physical examination had revealed hepatosplenomegaly. Upper abdominal MRI showed massive hepatosplenomegaly and innumerable hypointense splenic nodules on T1-weighted images. Diffusion-weighted MRI (DW-MRI) and magnetic resonance spectroscopy (MRS) were performed to liver parenchyma and splenic nodules. MRS revealed lactate, lipid, acetate, and alanine peaks in splenic nodules, and choline, creatine, lipid, myo-inositolglycine, and lactate peaks in the liver parenchyma. The DW-MRI showed diffusion restriction in splenic nodules. It was concluded that MRI is a reliable method for the diagnosis and follow up of GD. Coupling DW-MRI and MRS allows quantitative evaluation, thereby increasing the efficacy of the method. This is the first report in the literature presenting advanced abdominal MRI findings in GD.Öğe Evaluation of CSF flow dynamics in patients with schizophrenia using phase-contrast cine MRI(Elsevier Ireland Ltd, 2021) Kartalci, Sukru; Erbay, Mehmet Fatih; Kahraman, Aysegul; candir, Fatih; Erbay, Lale GonenirPatients with schizophrenia show progressive clinical deterioration. Brain abnormalities have been suggested in these patients, including enlargement of the lateral ventricles, increased cerebrospinal fluid (CSF) volume and reductions in the frontal and temporal lobes. CSF flow pathology is a central factor in the development of many neurological disorders, but much less is known about the role of CSF flow dynamics in schizophrenia. In this study, parameters of CSF flow dynamics at the aqueduct level of 50 schizophrenic patients were compared to those of 50 controls using phase-contrast cine magnetic resonance imaging. Patients had lower peak velocity, lower net forward volume, and lower average flow over the range studied than controls. The average velocity was significantly lower in patients exhibiting violent behavior compared to non-violent patients. The aqueduct tendedto be larger in schizophrenic patients with earlier age of onset of the disorder. Furthermore, as the number of hospitalizations increased, the average velocity and flow over the range studied decreased commensurately. This study demonstrated that CSF flow dynamics are altered in patients with schizophrenia. The results indicated that additional studies of CSF flow dynamics in schizophrenia are needed, along with volumetric examinations of the brain, to elucidate the pathophysiology of the disease.Öğe Evaluation of Vertebral Artery Involvement by Doppler Sonography in Patients With Behcet Disease(Wiley, 2014) Tasolar, Sevgi; Dogan, Metin; Tasolar, Hakan; Kahraman, Aysegul; Kamisli, Suat; Dogan, Adil; Yildirim, OkanObjectives-Neurologic lesions in Behcet disease are most frequently observed in areas supplied by the vertebrobasilar system. We aimed to evaluate possible vertebral artery involvement by Doppler sonography in patients with Behcet disease. Methods-Forty-five patients with Behcet disease and 29 healthy volunteers had Doppler sonography of the vertebral arteries. Patients were grouped according to neurologic examination and magnetic resonance imaging findings as follows: group 1, Behcet disease without neurologic involvement; group 2, neuro-Behcet disease; and group 3, control. Results were assessed with a 95% confidence interval. Results-The main findings of our study were as follows: (1) total vertebral artery volume flow was significantly lower in the patient groups than the control group (P < .05); (2) total volume flow was lower in group 2 than group 1, although the difference was not statistically significant; (3) peak systolic and end-diastolic velocity values were significantly lower in the patient groups than the control group; (4) right and left mean volume values were lower in group 2; and (5) resistive and pulsatility index values for the left vertebral artery were significantly higher in group 2, but no statistically significant differences were found in the resistive and pulsatility index values for the right vertebral artery. Conclusions-Doppler sonography of the vertebral arteries in Behcet disease shows alterations that may aid in the diagnosis and treatment of this condition.Öğe The Evaluation of Vertebrobasilar Artery System in Neuro-Behcet and Behcet Disease using Magnetic Resonance Angiography(Wiley, 2014) Kose, Evren; Kamisli, Suat; Dogan, Metin; Tasolar, Sevgi; Kahraman, Aysegul; Oztanir, Mustafa Namik; Sener, SerpilThe aim of this study is the evaluation of the vertebrobasilar artery system in patients with Behcet's and Neuro-Behcet's disease. For this aim; 20 adults with clinically diagnosed Behcet's disease, 20 adults with Neuro-Behcet's disease, and 19 age-and gender-matched controls were examined by magnetic resonance angiography (MRA). During MRA, diameters of left vertebral artery (LVA), right vertebral artery (RVA), basilar artery (BA), and proximal segment (P1) of posterior cerebral artery between origin and junction with the posterior communicating artery were measured. In all groups, LVA was dominant than RVA (P < 0.05). The diameters of BA and right P1 of Neuro-Behcet's disease were larger than the other groups (P < 0.05). In addition, the diameters of left P1 of Neuro-Behcet's disease were larger but not statistically significant. There is no difference between the groups in terms of gender. Behcet's disease can affect vascular structures; therefore vertebrobasilar artery system should be examined in patients with Behcet's and Neuro-Behcet's disease. (C) 2014 Wiley Periodicals, Inc.Öğe Giant Hepatic Hemangioma Presenting as Gastric Outlet Obstruction(Int College Of Surgeons, 2013) Aydin, Cemalettin; Akbulut, Sami; Kutluturk, Koray; Kahraman, Aysegul; Kayaalp, Cuneyt; Yilmaz, SezaiHemangioma, a most frequently encountered primary benign tumor of the liver, is generally determined incidentally during the course of radiologic tests for other reasons. Most lesions are less than 3 cm and a significant proportion of patients are asymptomatic, although the size and location of the lesion in some patients may be associated with the onset of symptoms. Pressure on the stomach and duodenum of giant hemagiomas developing in the left lobe of the liver, in particular, may result in the development of abdominal pain, nausea, vomiting, and feeling bloated, which are characteristic of a gastric outlet obstruction. A 42-year-old man presented with findings of gastric outlet obstruction and weight loss as a result of a giant hepatic hemangioma.Öğe Isolated Pneumomediastinum Following Laparoscopic Cholecystectomy: An Unpredictable Situation(Coll Physicians & Surgeons Pakistan, 2014) Aydin, Cemalettin; Akbulut, Sami; Gozeneli, Orhan; Kahraman, Aysegul; Kayaalp, CuneytPneumomediastinum is a clinical event characterized by the presence of air in the mediastinum. Often a result of physical trauma, this condition results from air escaping from the respiratory airway and moving into the mediastinal cavity. Although rare, it can also develop following abdominal laparoscopic surgical procedures. Diagnosis is commonly made by visualizing a radiolucent airline in the mediastinum and/or surrounding the heart following a chest X-ray radiography or a thoracic CT scan. This case study describes the diagnosis, treatment and follow-up of a 51 years old female patient who developed pneumomediastinum following a laparoscopic cholecystectomy.Öğe Liver Hydatid Cyst Rupture Into the Peritoneal Cavity After Abdominal Trauma: Case Report and Literature Review(Int College Of Surgeons, 2012) Yilmaz, Mehmet; Akbulut, Sami; Kahraman, Aysegul; Yilmaz, SezaiThe aim of this study was to review the literature regarding the rupture of hydatid cysts into the abdominal cavity after trauma. We present both a new case of hydatid cyst rupture that occurred after blunt abdominal trauma and a literature review of studies published in the English language about hydatid cyst rupture after trauma; studies were accessed from PubMed, Google Scholar, EBSCO, EMBASE, and MEDLINE databases. We identified 22 articles published between 2000 and 2011 about hydatid cyst rupture after trauma. Of these, 5 articles were excluded because of insufficient data, duplication, or absence of intra-abdominal dissemination. The other 17 studies included 68 patients (38 males and 30 females) aged 8 to 76 years who had a ruptured hydatid cyst detected after trauma. The most common trauma included traffic accidents and falls. Despite optimal surgical and antihelmintic therapy, 7 patients developed recurrence. Complications included biliary fistula in 5 patients, incisional hernia in 2 patients, and gastrocutaneous fistula in 1 patient. Death occurred from intraoperative anaphylactic shock in 1 patient and gastrointestinal bleeding and pulmonary failure in 1 patient. Rupture of a hydatid cyst into the peritoneal cavity is rare and challenging for the surgeon. This condition is included in the differential diagnosis of the acute abdomen in endemic areas, especially in young patients.Öğe Use of dual energy CT urography in evaluation of urinary stone and complex cyst(Tubitak Scientific & Technological Research Council Turkey, 2023) Gezer, Mehmet; Karaca, Leyla; Ozdemir, Zeynep Maras; Kahraman, Aysegul; Oguz, Fatih; Erbay, Fatih; Yetis, HuseyinBackground/aim: Dual-energy computed tomography scans can provide significant benefits to the urinary system. The aim of this study is to determine the limitations and benefits of using dual energy CT urography in patients with urinary system stones and cysts.Materials and methods: In the analysis of the images, the virtual noncontrasted images obtained from the combined nephrogenic-excretory phase and the true noncontrasted images were evaluated. The true noncontrast images were accepted as the gold standard for stone detection.Results: Eighty-three different stones were detected in 26 of the 115 patients included in the study. Sensibilities of virtual noncontrast images in detecting urinary system stones were 66.7% and 65.4% according to the first and second radiologists, respectively. In this study, 32 hyperdense cysts were detected. According to iodine map images, there was no enhancement in 26 of 32 cysts; only 5 cysts showed minimal contrast enhancement. One patient could not decide on contrast enhancement.Conclusion: As a result, if CT urography is performed with dual energy, it can provide additional information in patients with urinary system disorder.Öğe Virtual non-enhanced dual-energy computed tomography reconstruction: a candidate to replace true non-enhanced computed tomography scans in the setting of suspected liver alveolar echinococcosis(Turkish Soc Radiology, 2023) Kantarci, Mecit; Aydin, Sonay; Kahraman, Aysegul; Ogul, Hayri; Irgul, Baris; Levent, AkinPURPOSE When a suspected hepatic alveolar echinococcosis (AE) lesion is detected on a contrast enhanced computed tomography (CT) scan, an additional triphasic or non-enhanced CT scan is required to determine the presence of calcification and enhancement. As a result, imaging costs and exposure to ionizing radiation will increase. We can create a non- enhanced series from routine contrast-enhanced images using dual-energy CT (DECT) and virtual non- enhanced (VNE) images. This study's objective is to assess virtual non-enhanced DECT reconstruction as a potential diagnostic tool for hepatic AE. METHODS Triphasic CT scans and a routine dual energy venous phase were acquired using a third-generation DECT system. A commercially available software package was used to generate VNE images. Individual evaluations were conducted by two radiologists. RESULTS The study population consisted of 100 patients (30 AE, 70 other solid liver masses). All AE cases were diagnosed [no false positives/negatives, 95% confidence interval (CI) sensitivity: 91.3%-100%; 95% CI specificity: 95.3%-100%]. Interrater agreement was k: 0.79. In total, 33 (33.00%) of the patients had AE, which was detected using both true non-enhanced (TNE) and VNE images. The mean doselength product of a standard triphasic CT was significantly higher than biphasic dual-energy VNE images. CONCLUSION In terms of diagnostic confidence, VNE images are comparable with actual non-enhanced imaging when evaluating hepatic AE. Further, VNE images could replace TNE images with a substantial radiation dose reduction. Advances in knowledge: hepatic cystic echinococcosis and AE are serious and severe diseases with high fatality rates and a poor prognosis if managed incorrectly, especially AE. Moreover, VNE images produce equal diagnostic confidence to TNE images for assessing liver AE, with a significant reduction in radiation dose.
