Tıp Fakültesi, Radyoloji Anabilim Dalı Koleksiyonu
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Öğe Letter on the article "A rare tumour of the neck in a child"(ELSEVIER MASSON, VIA PALEOCAPA 7, 20121 MILANO, ITALY, 2017) Dogan, M.; Kahraman, A. S.; Yildirim, I. O.Öğe Tuberculous arthritis in the elbow joint in an adolescent(Aves press ltd, c/o edward c dıckınson, flat 3, bolsover court, 19 bolsover rd, eastbourne, bn20 7jg, england, 2018) Öztürk, Mehmet; Akatlı, Ayşenur; Sığırcı, Ahmet; Akpolat, NusretMusculoskeletal system tuberculosis (TB) accounts for approximately 10% of all TB cases, excluding those involving pulmonary TB. Elbow TB is extremely rare and is seen in 2%-5% of musculoskeletal system cases. The diagnosis of TB arthritis is very difficult because its onset is insidious and progress is slow and there are nonspecific local and systemic symptoms. A delay in treatment can result in irreversible osteoarticular destruction. This paper presents the clinical and radiological findings of a 12-year-old adolescent patient with elbow TB arthritis.Öğe Management of non-vascular complications following renal transplantation using percutaneousapproach(Edızıonı luıgı pozzı, vıa panama 68, 00198 rome, ıtaly, 2018) Yildirim, Ismail Okan; Berktas, Bayram; Saglik, Semih; Piskin, Turgut; Dogan, Murat; Sahin, Idris; Taskapan, Hulya; Sarac, KayaOBJECTIVE: Non-vascular complications following renal transplantation can cause graft failure. In this study, we present our two-year experience with percutaneous treatment for non-vascular complications following renal transplantation. PATIENTS AND METHODS: A total of 30 patients who underwent percutaneous radiological treatment between March 2014 and July 2016 were included in the study. RESULTS: Following renal transplantation, a total of 36 percutaneous radiological procedures which includes hydronephrosis secondary to ureteral stricture (n. 15), clinical symptom producing lymphocele due to pressure (14) and creatinine elevated nondilated grafts (n. 7) after excluding other reasons of creatinine elevation, were performed. Six patients received percutaneous treatment for both ureteral stricture and lymphocele. The patients underwent balloon dilatation and double-J ureteral stent due to ureteral stricture. The mean pre- and post-procedural creatinine levels were 4.36 +/- 2.84mg/dL and 2.17 +/- 1.24 mg/dL respectively (p=0.004), indicating a significant difference. For lymphocele treatment, sclerosing agents were injected and lymphatic leakage areas were injected with percutaneous glue. The mean pre- and post-procedural creatinine values were 2.97 +/- 1.78 mg/dL and 1.75 +/- 1.18 respectively (p=0.002), indicating a significant difference. Nephrostomy catheters were placed for patients with elevated creatinine levels and non-dilated collecting system. The mean pre- and post- nephrostomy creatinine levels were 3.55 +/- 2.36 mg/dL and 2.57 +/- 1.82 mg/dL respectively (p>0.05), indicating no statistically significant difference. CONCLUSION: The results of our study suggest that percutaneous treatment is an effective method for the treatment of non-vascular complications following renal transplantation, and, therefore, should be the first option for the preservation of graft functions.Öğe Examination of the antioxidant effects of pre-hsg melatonin use on ovarian surface epithelium inrats: an experimental study(Wroclaw medıcal unıv, t chalubınskıego 6a, wroclaw, 50-368, poland, 2018) Yilmaz, Esra Saygili; Sapmaz, Tansel; Kazgan, Halil; Yildiz, Sule Menziletoglu; Kocamaz, Derya; Akpolat, Nusret); Sapmaz, EkremBackground.There is no study of whether the dysplastic changes in the ovarian surface epithelium of X-ray-exposed rats during hysterosalpingography (HSG) decrease or not with the use of Lipiodol and melatonin given both intiaperitoneally (i.p.) and into the suspensorium ovarii. Objectives. We investigated the restorative effects of melatonin and Lipiodol admimstiation during the HSG piocedure on the dysplastic changes in the ovarian surface epithelium of X-ray-exposed rats. Material and methods. A total of 50 Wistar rats with regular estrous cycles were randomly divided into 5 groups. Group 1 was the control group. In other groups, X-ray was applied (group 2), 0.1 mL Lipiodol was applied to each uterine horn (group 3),20 mg/kg intraperitoneal melatonin application was followed by 0.1 mL Lipiodol administration to each uterine horn after 15 min (group 4), and 20 mg/kg melatonin was administered to the ligamentum suspensorium ovarii, followed by 0.1 mL Lipiodol application to each uterine horn after 15 min (group 5). The rats in groups 2-5 were exposed to whole body radiation 3 times. After 3 h, the abdomens of all rats were reopened and left oophorectomy was performed. Results. The presence of nucleoli and mitosis values were found similar among the groups. All other palameters were significantly higher in group 2 compated to other groups, except for the presence of nucleoli and mitosis values (p < 0.05). The presence of hyperchromasia and the total score were found to be the highest in group 2, followed by group 3, when compared to other groups (p < 0.05). It was detected that the detrimental effects of X-iay exposure diminished with Lipiodol use, and were further reduced by the use of melatonin in combination. Conclusions. We suggest that the use of melatonin and Lipiodol during HSG may prevent the carcinogenic changes exeited by radiation on the ovarian suiface epithelium.Öğe Evaluation of prostatic artery embolization efficiency in benign prostatic hyperplasia patients withhigh comorbidity(Galenos yayıncılık, erkan mor, molla guranı cad 21-1, fındıkzade, ıstanbul 34093, turkey, 2018) Yildirim, Ismail Okan; Duman, Enes; Firat, Ali; Celik, Huseyin; Sarac, KayaObjective: The purpose of this study was to evaluate efficacy outcomes following prostate artery embolization (PAE) for the treatment of benign prostatic hyperplasia (BPH) patients with high comorbidity. Materials and Methods: This retrospective study included 22 patients treated with PAE from May 2015 to June 2017. Patients with Charlson comorbidity index >= 2, International Prostate Symptom Score (IPSS) >12, prostate specific antigen (PSA) levels <4 ng/mL or between 4 and 10 ng/mL with negative prostate biopsy and total prostate volume (TPV) >90 cm(3) were included. Total PSA, maximum flow rate (Q(max)), TPV, IPSS, post-voiding residual (PVR) values were recorded in all patients in the urology clinic before PAE and at 3 and 6 months after PAE. Results: The average patient age was 73.86 +/- 6.25 years and operative time was 80 minutes (range, 60-120 min). Pre-PAE and 6-month post-PAE values were: IPSS: 25.18 +/- 6.75 an d 11.27 +/- 3.29 (p<0.05), Q(max): 8.31 +/- 3.12 and 17.22 +/- 3.23 (p<0.05), PVR: 87.9 +/- 19.25 and 25.86 +/- 7.72 (p<0.05), TPV: 134.45 +/- 57.56 and 86 +/- 15.4 (p<0.05), and PSA: 3.89 +/- 1.26 and 2.11 +/- 1.06 (p<0.05). Embolization was performed unilaterally due to atherosclerosis and strictures in the internal iliac artery branches in 2 patients. After the procedure, 2 patients experienced transient hematuria which did not require bladder irrigation, 1 patient had acute urinary retention due to dysuria, and 1 patient had transient hematospermia. Conclusion: PAE may be an alternative treatment method in BPH patients with high comorbidity.Öğe Evaluation of localisation of mandibular foramen in patients with mandibular third molar teeth usingcone-beam computed tomography(Vıa medıca, ul swıetokrzyska 73, 80-180 gdansk, poland, 2018) Altun, O; Miloglu, O; Dedeoglu, N; Duman, SB; Torenek, KBackground: It is important to know the correct anatomical location of the mandibular foramen to obtain successful anaesthesia of inferior alveolar nerve and to prevent injury to the mandibular vessels and nerve, during a variety of oral and maxillofacial surgical procedures. The aim of this study is to evaluate localisation of the mandibular foramen in patients with the third molars using cone-beam computed tomography (CBCT). Materials and methods: Cone-beam computed tomography was used to determine the location of the mandibular foramen in 67 patients (totally 99 sides) with unilateral or bilateral impacted mandibular third molars. Results: The distance from the posterior border of the mandibular ramus to mandibular foramen did not differ significantly among the other angulations. But the difference between vertical and horizontal angulation of the impacted mandibular third molars according to 'fd' values (the shortest distance between mandibular foramen and the posterior border of mandibular ramus) was found to be statistically significant (p < 0.05). Conclusions: The present study provides new information to the literature concerning relationship between the location of the mandibular foramen and the mandibular third molars.Öğe Cerebrospinal fluid dynamics in patients with multiple sclerosis: the role of phase-contrast mrı inthe differential diagnosis of active and chronic disease(Korean radıologıcal soc, 121-8 yangjae-dong, seocho-gu, seoul 137-130, south korea, 2018) Oner, Serkan; Kahraman, Ayşegül Sağır; Özcan, Cemal; Özdemir, Zeynep Maraş; Ünlü, Serkan; Kamisli, Özden; Oner, ZulalObjective: Multiple sclerosis (MS) is an inflammatory disease characterized by demyelinating plaques in the white matter. Chronic cerebrospinal venous insufficiency (CCSVI) has been proposed as a new hypothesis for the etiopathogenesis of MS disease. MS-CCSVI includes a significant decrease of cerebrospinal fluid (CSF) flow through the cerebral aqueduct secondary to an impaired venous outflow from the central nervous system. This study aimed to determine whether CSF flow dynamics are affected in MS patients and the contributions to differential diagnosis in active and chronic disease using phase-contrast magnetic resonance imaging (PC-MRI). Materials and Methods: We studied 16 MS patients with chronic plaques (group 1), 16 MS patients with active plaques-enhanced on MRI (group 2), and 16 healthy controls (group 3). Quantitatively evaluation of the CSF flow was performed from the level of the cerebral aqueduct by PC-MRI. According to heart rates, 14-30 images were obtained in a cardiac cycle. Cardiac triggering was performed prospectively using finger plethysmography. Results: No statistically significant difference was found between the groups regarding average velocity, net forward volume and the average flow (p > 0.05). Compared with the controls, group 1 and group 2, showed a higher peak velocity (5.5 +/- 1.4, 4.9 +/- 1.0, and 4.3 +/- 1.3 cm/sec, respectively; p = 0.040), aqueductal area (5.0 +/- 1.3, 4.1 +/- 1.5, and 3.1 +/- 1.2 mm(2), respectively; p = 0.002), forward volume (0.039 +/- 0.016, 0.031 +/- 0.013, and 0.021 +/- 0.010 mL, respectively; p = 0.002) and reverse volume (0.027 +/- 0.016, 0.018 +/- 0.009, and 0.012 +/- 0.006 mL, respectively; p = 0.000). There were no statistical significance between the MS patients with chronic plaques and active plaques except for reverse volume. The MS patients with chronic plaques showed a significantly higher reverse volume (p = 0.000). Conclusion: This study indicated that CSF flow is affected in MS patients, contrary to the hypothesis that CCSVI-induced CSF flow decreases in MS patients. These findings may be explained by atrophy-dependent ventricular dilatation, which may occur at every stage of MS.Öğe A novel technique in the treatment of lymphoceles after renal transplantation: c-arm cone beamct-guided percutaneous embolization of lymphatic leakage after lymphangiography(Lıppıncott wıllıams & wılkıns, two commerce sq, 2001 market st, phıladelphıa, pa 19103 usa, 2018) Yildirim, Ismail Okan; Piskin, Turgut; Duman, Enes; Firat, Ali; Dogan, Murat; Taskapan, Huelya; Sahin, Idris; Sarac, KayaBackground We aimed to evaluate the efficacy of percutaneous embolization after lymphangiography using C-arm cone-beam computed tomography (CBCT) performed at the site of lymphatic leakage in patients with postrenal transplant lymphocele. Methods Between July 2014 and August 2017, 13 patients not responding to percutaneous ethanol sclerotherapy and conservative treatment for recurrent lymphocele after renal transplant were included. The mean age of the patients was 56.38 9.91 (range, 36-70) years, and it comprised 9 men and 4 women. All patients underwent intranodal lymphangiography. C-arm CBCT-guided percutaneous embolization was performed in patients with confirmed lymphatic leakage. Patients who had no lymphatic leakage underwent drainage with fibrin glue injection. Results Lymphatic leakage was observed in 9 patients after lymphangiography, and they underwent CBCT-guided percutaneous N-butyl-2-cyanoacrylate embolization. The volume of lymphatic drainage reduced to less than 10 mL in 8 patients. One patient who was not responding to embolization was treated surgically, after percutaneous drainage and fibrin glue injection. Lymphatic leakage was not observed in 4 patients after lymphangiography. Of these, 3 patients showed a reduction in the amount of lymphatic drainage after lymphangiography. All 4 patients underwent percutaneous drainage and fibrin glue injection. One patient did not respond to the treatment and was treated surgically. Prelymphangiography and postlymphangiography and embolization, the volume of lymphatic drainage was 113.07 +/- 21.75 mL, and 53.84 +/- 30.96 mL, respectively, and statistically significant decrease was detected (P < 0.005). Conclusions Lymphangiography and CBCT-guided percutaneous embolization procedures might be an effective treatment method for patients with lymphocele refractory to treatment.Öğe The role of ARFI elastography to evaluate microstructrual changes of patients with testicular microlithiasis(Acta radıologıca, 2018) Aslan, Serdar; Bilgici, Meltem Ceyhan; Sağlam, Dilek; Öztürk, MesutBackground: Testicular microlithiasis (TML) is thought to cause microstructural changes in the parenchyma of the testis, but it is difficult to demonstrate this by ultrasonography. It may be possible to evaluate microstructural changes in the testis by Acoustic Radiation Force Impulse (ARFI) elastography, which measures tissue stiffness. Purpose: To assess the tissue stiffness of testicles of children with TML and to compare them with the healthy control group. Material and Methods: Between November 2015 and May 2016, 25 pediatric patients with TML and 24 healthy children were enrolled in the study (mean age for TML and control group 6.7 +/- 3.17 and 7.9 +/- 4.18 years, respectively). Testicular volumes and mean shear wave velocity (SWV) values were calculated and compared with each other in both groups. Results: There was no significant difference in average testicular volumes between the TML group and the control group (1.14 cm(3), 1.21 cm(3), respectively; P = 0.986). Mean SWV of the testicles with TML and normal testicles with control group was 1.18 +/- 0.22 cm/s and 0.88 +/- 0.11 cm/s, respectively. The SWV of the testicles with TML was higher than the normal testicles and this was statistically significant (P < 0.001). Conclusion: This study has shown that tissue stiffness in patients with TML is increased compared to the normal population. ARFI elastography helps the early detection of microstructural changes in TML and can be used for screening and follow-up.Öğe İnce barsak radyolojik inceleme yöntemleri(Güncel Gastroenteroloji, 1999) Sığırcı, Ahmet; Arda, KemalÖğe Fallot tetralojisinde aort çıkışlı sol pulmoner arter(Türk Tanısal ve Girişimsel Radyoloji Dergisi, 1999) Sığırcı, Ahmet; Yurdakul, M.; Tola, M.; Ölçer, T.Öğe Spontaneous pneumopericardium and pneumomediastinum(Asian Cardiovasc Thorac Ann, 2000) Arda, Kemal; Eldem, Olcay; Sığırcı, Ahmet; Özkan, Fikri ÖzgürA 20-year-old man with a 5-year history of ulcerative colitis presented with sudden chest pain and diarrhea. Chest radiography, echocardiography, and computed tomography demonstrated pneumomediastinum and pneumopericardium. The condition resolved completely after one week.Öğe Retrofaringeal ve derin boyun absesinde US eşliğinde perkütan drenaj(Türk Tanısal ve Girişimsel Radyoloji Dergisi, 2000) Kutlu, Ramazan; Kızılay, Ahmet; Baysal, Tamer; Sığırcı, AhmetÖğe Santral dev hücreli granülom konvansiyonel radyografi ve BT bulguları(Türk Tanısal ve Girişimsel Radyoloji Dergisi, 2000) Sığırcı, Ahmet; Kutlu, Ramazan; Baysal, Tamer; Saraç, KayaÖğe Dyke Davidoff Masson sendromunda manyetik rezonans görüntüleme bulguları(İnönü Üniversitesi Tıp Fakültesi Dergisi, 2001) Alkan, Alpay; Baysal, Tamer; Kıroğlu, Yılmaz; Sığırcı, Ahmet; Orkan, İsmetÖğe Doppler sonography of the inferior and superior mesenteric arteries in ulcerative colitis(J Clin Ultrasound, 2001) Sığırcı, Ahmet; Baysal, Tamer; Kutlu, Ramazan; Aladağ, Murat; Saraç, Kaya; Harputluoğlu, HakanPurpose. The purpose of this study was to evaluate the Doppler sonographic blood-flow parameters and spectral patterns in the inferior mesenteric artery (IMA) and superior mesenteric artery (SMA) in patients with active and inactive (remission-phase) ulcerative colitis (UC). Methods. The IMAs and SMAs of 25 patients with active-phase UC (group 1), 19 patients with remissionphase UC (group 2), and 22 healthy, asymptomatic subjects (control group) were evaluated by duplex Doppler sonography. The 25 patients in group 1 were categorized into 2 subgroups on the basis of the extent of disease as determined by double-contrast barium enema x-ray study and colonoscopy. The first subgroup (group 1a) consisted of 11 patients with active involvement of the left colon from the rectum to the splenic flexure. The second subgroup (group 1b) consisted of 14 patients with active involvement of the entire colon. The peak systolic velocity (PSV), enddiastolic velocity (EDV), mean velocity (Vmean), resistance index (RI), and pulsatility index (PI) were determined from the Doppler spectral analysis. The inner diameter and cross-sectional area of the IMA and SMA were measured, and the blood-flow volume was calculated. The results were compared between the patient groups and control subjects. Results. In the IMA, the mean blood-flow volume, mean PSV, mean EDV, and Vmean were significantly higher, the mean PI was significantly lower, and the mean diameter and the mean cross-sectional area were significantly larger in group 1 than in group 2 or in the control group (p < 0.001). The mean PSV and the Vmean of the IMA were significantly higher in group 1a than in group 1b (p < 0.05). The mean blood-flow parameters in the SMA were not significantly different between groups 1 and 2 or between either group 1 or group 2 and the control subjects. The mean EDV in the SMA was significantly higher and the mean PI and the mean RI were significantly lower in group 1b than in group 1a (p < 0.01). Conclusions. Duplex Doppler sonography of the IMA and SMA can be used to evaluate inflammatory disease of the large bowel, to assess disease extent, and to document response to therapy.Öğe Early MRI findings in stab wound of the cervical spine two case reports(Neuroradiology, 2002) Alkan, Alpay; Baysal, Tamer; Saraç, Kaya; Sığırcı, Ahmet; Kutlu, RamazanÖğe Glutaric aciduria type 1diagnosed after poliovirus immunization magnetic resonance findings(Pediatr Neurol, 2002) Alkan, Alpay; Baysal, Tamer; Yakıncı, Mehmet Cengiz; Sığırcı, Ahmet; Kutlu, RamazanGlutaric aciduria type I is an uncommon inborn error of metabolism. It is a serious disease, often with a fatal outcome. Magnetic resonance imaging findings and the clinical course of monozygotic twin females with glutaric aciduria type I who were admitted with acute encephalopathic crisis symptoms 3 days after immunization for poliovirus are presented in this report. Magnetic resonance imaging findings revealed hyperintensity in the putamen, head of the left caudate nucleus, and globus pallidus, periventricular white matter (on T2-weighted images), arachnoid cysts in bilateral temporal regions, and enlargement of the sylvian fissures. Glutaric aciduria type I should be included in the differential diagnosis of patients with acute encephalopathic crisis occurring shortly after poliovirus immunization. Typical magnetic resonance findings guide urinary organic acid analysis in these patients.Öğe Quantitative doppler evaluation of the splenoportal venous system in various stages of cirrhosis differences between right and left portal veins(J Clin Ultrasound, 2002) Kutlu, Ramazan; Karaman, İbrahim; Akbulut, Ahmet; Baysal, Tamer; Sığırcı, Ahmet; Alkan, Alpay; Aladağ, Murat; Seçkin, Yüksel; Saraç, KayaPurpose. The purpose of our study was to evaluate the relationship between the splenoportal hemodynamics in patients with cirrhosis and the stage of the disease. Methods. Patients with cirrhosis were grouped according to modified Child-Pugh scoring into stages A, B, and C of cirrhosis. A control group of healthy volunteers was included. After gastroenterologic clinical and laboratory examinations, all participants underwent a splenoportal Doppler sonographic evaluation in which the vessels’ diameter, area, and blood flow velocity were measured and blood flow rate and the congestion index in the splenoportal venous system were calculated. Results. Seventy-five patients with cirrhosis (25 women and 50 men) were enrolled; the control group consisted of 30 healthy volunteers (15 women and 15 men) with no liver disease. The mean age (± standard deviation) of the patients was 54.4 ± 14.8 years (range, 13–80 years) and of the control subjects was 47.3 ± 14.5 years (range, 18–72 years). No significant differences in vessel diameter, blood flow velocity, and blood flow rate were found in the main and left portal veins between the study group and the control group. In the right portal vein, we found decreases in the vessel diameter, blood flow velocity, and blood flow rate, and in the splenic vein, we found increases in vessel diameter and blood flow rate. The congestion index was increased in the main portal and splenic veins but was unchanged in the left portal vein. Conclusions. Although our data indicate that there is no difference in Doppler sonographic parameters of the main portal vein according to Child-Pugh scores, the hemodynamic differences between the left and right branches of the portal vein may be clinically useful in patients with cirrhosis.Öğe Hydatid disease with rare localizations a case report(İnönü Üniversitesi Tıp Fakültesi Dergisi, 2002) Altınok, Tayfun; Kılıç, Süleyman; Sığırcı, Ahmet; Alkan, Alpay; Kutlu, Ramazan; Baysal, Tamer; Aydoğdu, İsmetIntroduction: When the disease is in rare localization and especially has not a typical appearance of hydatid cyst, incorrect definitive diagnosis may be defined mistakenly, since the disease may be easily missed unless being careful. Case Report: We present a patient affected by echinococcosis with rare localizations such as thyroid, abdominal wall and kidney. Discussion: Especially in endemic and sporadic echinococcosis areas, hydatid disease must be always considered wherever cysts are established.
