Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Banu Cakir is active.

Publication


Featured researches published by Banu Cakir.


American Journal of Roentgenology | 2008

STIR Sequence for Depiction of Degenerative Changes in Posterior Stabilizing Elements in Patients with Lower Back Pain

Hatice Lakadamyali; Nefise Cagla Tarhan; Tarkan Ergun; Banu Cakir; Ahmet Muhtesem Agildere

OBJECTIVE The aims of this study were to investigate whether degenerative posterior paraspinal changes are a cause of lower back pain and to determine the age- and sex-related distribution of these changes on MR images acquired with a STIR sequence. SUBJECTS AND METHODS The lumbar MRI findings of 372 patients (141 men, 231 women; mean age, 51.2 years) with nonradicular lower back pain and of 249 healthy persons acting as controls (126 men, 123 women; mean age, 49.3 years) were analyzed. The sagittal STIR sequence was used for all MRI examinations. Presence of interspinous ligament edema, facet joint effusion, neocysts, paraspinal muscle edema, subcutaneous edema, disk herniation, and disk degeneration was evaluated, and the incidence of each finding was determined. All findings were grouped according to age and sex. Chi-square, Fishers exact, and independent-samples Students t tests and Spearmans rank correlation analysis were used for statistical analysis. RESULTS The incidences of facet joint effusion, interspinous ligament edema, neocyst formation, and paraspinal muscle edema were found to be statistically significantly higher in patients with lower back pain than in controls. The incidences of intervertebral disk degeneration, disk herniation, and subcutaneous edema in persons with and those without lower back pain were similar. Intervertebral disk degeneration, disk herniation, subcutaneous edema, and muscle edema were found to increase with age in both persons with and those without symptoms. CONCLUSION Degenerative changes in the posterior paraspinal structures were found in a higher percentage of subjects with lower back pain than in controls. Use of a STIR sequence with homogeneous fat suppression facilitates visualization of these changes.


European Journal of Radiology | 2009

Remote cerebellar hemorrhage after lumbar spinal surgery

Belma Cevik; Ismail Kirbas; Banu Cakir; Kayihan Akin; Mehmet Teksam

BACKGROUND Postoperative remote cerebellar hemorrhage (RCH) as a complication of lumbar spinal surgery is an increasingly recognized clinical entity. The aim of this study was to determine the incidence of RCH after lumbar spinal surgery and to describe diagnostic imaging findings of RCH. METHODS Between October 1996 and March 2007, 2444 patients who had undergone lumbar spinal surgery were included in the study. Thirty-seven of 2444 patients were scanned by CT or MRI due to neurologic symptoms within the first 7 days of postoperative period. The data of all the patients were studied with regard to the following variables: incidence of RCH after lumbar spinal surgery, gender and age, coagulation parameters, history of previous arterial hypertension, and position of lumbar spinal surgery. RESULTS The retrospective study led to the identification of two patients who had RCH after lumbar spinal surgery. Of 37 patients who had neurologic symptoms, 29 patients were women and 8 patients were men. CT and MRI showed subarachnoid hemorrhage in the folia of bilateral cerebellar hemispheres in both patients with RCH. The incidence of RCH was 0.08% among patients who underwent lumbar spinal surgery. CONCLUSION RCH is a rare complication of lumbar spinal surgery, self-limiting phenomenon that should not be mistaken for more ominous pathologic findings such as hemorrhagic infarction. This type of bleeding is thought to occur secondary to venous infarction, but the exact pathogenetic mechanism is unknown. CT or MRI allowed immediate diagnosis of this complication and guided conservative management.


Acta Radiologica | 2004

Multi‐slice Computed Tomography Angiography in the Detection of Residual or Recurrent Cerebral Aneurysms after Surgical Clipping

Mehmet Teksam; Alexander M. McKinney; Banu Cakir; C. L. Truwit

Purpose: To assess the diagnostic accuracy of multi‐slice computed tomography (MSCT) angiography compared to digital subtraction angiography (DSA) in detecting residual or recurrent aneurysms in patients undergoing aneurysm clipping surgery. Material and Methods: Eight patients with nine aneurysms who had both MSCTA and DSA were included in the study. Two independent experienced neuroradiologists evaluated the examinations. Results: Accuracy, sensitivity, and specificity of detecting residual or recurrent aneurysms on MSCTA were 0.80, 0.60, and 1.00, respectively. Positive and negative predictive values were 1.00 and 0.71, respectively. Conclusion: MSCTA is a promising technique for evaluating residual or recurrent aneurysms in patients undergoing surgical treatment of aneurysm with titanium clips.


European Journal of Radiology | 2009

Fulminant hepatic failure in children: Etiology, histopathology and MDCT findings

Banu Cakir; Ismail Kirbas; Beyhan Demirhan; Nefise Cagla Tarhan; Alper Bozkurt; Figen Ozcay; Mehmet Coskun

INTRODUCTION The purpose of this study is to determine the etiologies, histopathology and MDCT findings of children with fulminant hepatic failure admitted to our institution. MATERIALS AND METHODS Between June 2004 and November 2006, 15 children with fulminant hepatic failure who underwent MDCT were included retrospectively in this study. Twelve patients had liver biopsies. The patients were divided into three groups as hyperacute (Group I), acute (Group II) and subacute (Group III) depending on onset of hepatic encephalopathy. RESULTS Hepatitis A in 4 patients, non-A, non-E hepatitis in 4; mushroom poisoning in 3; fulminant Wilsons disease in 2; autoimmune hepatitis in 1; and both hepatitis B and toxic hepatitis (with leflunomide treatment) in 1 patient were detected. MDCT of all three groups revealed diffuse reduction in hepatic attenuation in 11 patients; ascites in 9; periportal edema in 6; edema of gallbladder wall in 6; splenomegaly in 6; heterogeneous hepatic parenchyma in 6; hepatomegaly in 3; irregular contours of liver in 2; multiple micronodules in 1 and necrotic areas and regeneration in liver parenchyma in 2 patients. Histopathologic evaluation of liver biopsies showed massive hepatic necrosis, inflammatory cell infiltration and ductular proliferation in 8 patients, periportal edema in 6, edema of gallbladder wall in 5, regenerating nodules and fibrous septa consistent with cirrhotic pattern in 2, and regenerating nodules and necrotic areas in 2 patients. CONCLUSION The most common MDCT findings in fulminant hepatic failure were diffuse reduction in hepatic attenuation and ascites. Massive hepatic necrosis was the most common histopathologic finding.


Fetal Diagnosis and Therapy | 2005

Fetal MRI of a Severe Dandy-Walker Malformation with an Enlarged Posterior Fossa Cyst Causing Severe Hydrocephalus

Mehmet Teksam; Umut Ozyer; Alexander M. McKinney; Ismail Kirbas; Banu Cakir

We present a case of severe Dandy-Walker malformation with enlarged posterior fossa cyst extruding through the incisura of the tentorium and causing severe hydrocephalus. A posterior fossa malformation was suspected by ultrasonography and was further evaluated by fetal magnetic resonance imaging (MRI). Fetal MRI demonstrated that there were no associated anomalies and the decision was made to continue with labor instead of terminating the pregnancy. The precise diagnosis and absence of associated anomalies revealed by MRI aided in parent counseling and obstetrical management.


Pediatric Radiology | 2007

Mushroom poisoning in children: liver MDCT findings in three cases

Banu Cakir; Ismail Kirbas; Belma Cevik; Mehmet Teksam; Mehmet Coskun

Wild mushroom poisoning occurs quite frequently in Turkey, usually during late summer and autumn when climatic conditions favour fungal growth. We report the MDCT findings of the liver in three children after mushroom poisoning. In all three patients, precontrast MDCT findings showed diffuse reduction of hepatic attenuation compared with the spleen. Contrast-enhanced MDCT images showed homogeneous contrast enhancement of the liver. All three patients recovered after medical treatment. A follow-up precontrast MDCT examination was performed in one patient in whom the density of the liver parenchyma had returned to normal.


International Journal of Neuroscience | 2008

THE EFFECTS OF INTERFERON BETA-1a ON PROTON MR SPECTROSCOPIC IMAGING IN PATIENTS WITH MULTIPLE SCLEROSIS, A CONTROLLED STUDY, PRELIMINARY RESULTS

Münire Kılınç Toprak; Banu Cakir; E.Meltem Kayahan Ulu; Z. Arat; Ülkü Sibel Benli; Ufuk Can; Muhtesem Agildere

To evaluate the effects of interferon beta-1a(INFβ-1a) on brain metabolites in patients with multiple sclerosis (MS), we performed Magnetic Resonance Spectroscopy Imaging (MRSI) on five patients treated with INFβ-1a (Rebif 44 μg), and on five untreated patients. Six healthy volunteers were used as controls. Patients were evaluated at the beginning, in the first, third, sixth, and twelfth month. There were no significant differences in normal appearing white matter (NAWM) metabolite peaks of the control group and patients with MS. However, in white matter lesions (WML) and NAWM there was significant differences between the basal and the other months’ metabolic peaks (p < 0.05) in the treatment group although no differences emerged in the untreated group. These data suggest that INFβ-1a has a favorable effect on restoration of metabolites in MS lesions.


European Journal of Radiology | 2005

Multi-slice CT angiography of small cerebral aneurysms: is the direction of aneurysm important in diagnosis?

Mehmet Teksam; Alexander M. McKinney; Banu Cakir; Charles L. Truwit


Diagnostic and interventional radiology | 2008

Complications of continuous ambulatory peritoneal dialysis: evaluation with CT

Banu Cakir; Ismail Kirbas; Belma Cevik; Esra Meltem Kayahan Ulu; Ahmet Bayrak; Mehmet Coskun


British Journal of Radiology | 2006

Hydatid cysts in breast: mammography and ultrasound findings

Nihal Uslu Tutar; Banu Cakir; Geyik E; Nefise Cagla Tarhan; E A Niron

Collaboration


Dive into the Banu Cakir's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge