Evaluation of cognitive functions of juvenile myoclonic epileptic patients by magnetic resonance spectroscopy and neuropsychiatric cognitive tests concurrently.

Our aim in this research is investigating the hypothesis of biochemical changes in frontal cortex and thalamocortical pathways in juvenile myoclonic epilepsy (JME) and the interaction between the biochemical changes and cortical functions. Magnetic resonance spectroscopy (MRS) was applied to 20 JME patients and 20 controls for measuring N-acetyl aspartate (NAA), N-acetyl aspartate to creatine ratio (NAA/Cr), Glutamine and Glutamate (GLX), Glutamine-Glutamate to creatine (GLX/Cr), Choline containing compounds (Cho) and Choline to creatine (Cho/Cr) levels. Neuropsychological cognitive tests for linguistic and visual attention, linguistic and visual memory, visuospatial and executive functions were applied to all participants.

Calculation of the mastoid cell volume of infants from computed tomography imaging.

Objective: The objective of this study was to calculate the mastoid cell volume of infants using computed tomography imaging.

Methods: We calculated the mastoid cell volumes of 87 infants younger than 1 year classified into 4 age groups.

Results: There were significant (P = 0.

Contribution of diffusion-weighted imaging to diagnosis and staging of cervical cancer.

Background: Cervical cancer is the second most common female malignancy worldwide. Although its incidence has decreased in developed countries due to screening with Papanicolaou test, it is still the leading cause of cancer-related female death in developing countries.

Aims: The aim of this study was to determine whether the apparent diffusion coefficient (ADC) measurements calculated from diffusion-weighted imaging (DWI) images had any contribution in differentiation of normal cervical tissue from malignant lesions preoperatively, and whether there was a correlation between the mean ADC values and tumor type, grade, or stage in malignant lesions.

The sensitivity of MR colonography using dark lumen technique for detection of colonic lesions.

Background/aims: To assess the detectability of the lesions with magnetic resonance (MR) colonography using dark lumen technique that had been detected on conventional colonoscopy.

Materials And Methods: A total of 38 patients who were suspected to have a colorectal mass between April 2008 and June 2010 were included in this prospective study. Warm tap water was administered via a rectal tube to the patients in prone position.

Non-invasive detection of infection in acute pancreatic and acute necrotic collections with diffusion-weighted magnetic resonance imaging: preliminary findings.

Purpose: The purpose of this study was to evaluate the contribution of diffusion-weighted magnetic resonance imaging (DW-MRI) to the detection of infection in acute pancreatitis-related collections.

Methods: A total of 21 DW-MRI, and computed tomography (CT) were performed on 20 patients diagnosed as acute pancreatitis with acute peri-pancreatic fluid or necrotic collections. Collections were classified as infected or sterile according to the culture and follow-up results.

Use of sonography for evaluation of the cervical and thoracic esophagus in children.

Objectives: The purpose of this study was to determine the normal sonographic appearance of the cervical and thoracic esophagus and to provide corresponding measurements in healthy children.

Methods: In this prospective study, 93 children (51 girls and 42 boys) 1 to 15 years of age were examined sonographically. With the patient in a supine position for evaluation of the cervical esophagus, the ultrasound transducer was placed on both sides of the trachea.

Multidetector CT angiography versus arterial duplex USG in diagnosis of mild lower extremity peripheral arterial disease: is multidetector CT a valuable screening tool?

Objective: To prospectively compare the efficacy of 40-row multidetector computed tomography angiography (MDCTA) and duplex ultrasonography (DUS) to diagnose mild peripheral arterial occlusive disease (PAOD) in lower leg and to search whether MDCTA can be used as a screening tool.

Methods: Forty-three patients with intermittent claudication and leg pain, diagnosed as mild PAOD, had undergone DUS and MDCTA of lower limb. The arteries of lower leg were initially scanned by DUS, followed by MDCTA.

Utility of diffusion-weighted imaging in the diagnosis of acute appendicitis.

Objectives: To evaluate the value of diffusion-weighted MRI (DWI) in the diagnosis of acute appendicitis.

Methods: 119 patients with acute appendicitis and 50 controls were enrolled in this prospective study. DWI was obtained with b factors 0, 500 and 1000 s/mm² and were assessed with a visual scoring system by two radiologists followed by quantitative evaluation of the DW images and ADC maps.

Virtual and fiber-optic bronchoscopy in patients with indication for tracheobronchial evaluation.

Objective: The aim of this study was to compare the results of virtual bronchoscopy (VB) images in defining tracheobronchial pathologies with those of fiber-optic bronchoscopy (FOB) in patients with clinical indication for bronchoscopy.

Methods: Twenty-two patients with bronchoscopy indication were evaluated with FOB and VB. The VB results were evaluated blindly, independent of the FOB results.

T2-weighted MRI of the upper abdomen: comparison of four fat-suppressed T2-weighted sequences including PROPELLER (BLADE) technique.

Rationale And Objectives: The aim of this study was to compare four different fat-suppressed T2-weighted sequences with different techniques with regard to image quality and lesion detection in upper abdominal magnetic resonance imaging (MRI) scans.

Materials And Methods: Thirty-two consecutive patients referred for upper abdominal MRI for the evaluation of various suspected pathologies were included in this study. Different T2-weighted sequences (free-breathing navigator-triggered turbo spin-echo [TSE], free-breathing navigator-triggered TSE with restore pulse (RP), breath-hold TSE with RP, and free-breathing navigator-triggered TSE with RP using the periodically rotated overlapping parallel lines with enhanced reconstruction technique [using BLADE, a Siemens implementation of this technique]) were used on all patients.

Diffusion-weighted imaging of the rectosigmoid colon: preliminary findings.

Objectives: The aims of this study were to determine and evaluate the apparent diffusion coefficient (ADC) values of the rectal wall for identifying inflammatory bowel disease (IBD) and rectosigmoid (rectum and sigmoid colon) malignancies.

Methods: Diffusion-weighted magnetic resonance imaging (DWI) findings of 23 patients (mean age, 57 years) consisting of 14 patients with rectosigmoid adenocarcinomas and 9 patients with IBD (6 with ulcerative colitis and 3 with Crohn disease) were retrospectively reviewed. In addition, 30 healthy controls (mean age, 45 years) were enrolled in the study.

Fire-eater's pneumonia characterized by pneumatocele formation and spontaneous resolution.

Liquid hydrocarbons derived from petroleum are widely used in industry and in households. Aspiration of massive amounts may lead to an acute and fatal form of exogenous lipoid pneumonia (fire-eater's pneumonia). We present a rare case of chemical pneumonitis following accidental lamp oil aspiration characterized by pneumatocele formation and spontaneous resolution.

Diffusion-weighted MRI of urinary bladder and prostate cancers.

Purpose: The purpose of this study was to evaluate the feasibility of diffusion-weighted imaging in the diagnosis of the urinary bladder and prostate carcinomas. The apparent diffusion coefficient (ADC) values of the malignant and normal tissues were correlated.

Materials And Methods: A total of 23 patients with 14 urinary bladder carcinomas and 9 prostate carcinomas, and 50 healthy controls with normal ultrasonographic urinary bladder and prostate gland imaging findings were enrolled in the study.

Respiratory gated multidetector computed tomography: applicable for diagnostic abdominal imaging?

Purpose: To evaluate the ability and accuracy of a respiratory gated technique used with contrast enhanced MDCT of the upper abdomen with focus on diagnostic image quality and depiction of organs and major vessels.

Materials And Methods: Forty-five adult patients who were referred to our institution for follow-up dynamic contrast enhanced abdominal CT imaging were included in this study. Respiratory gated CT scans were performed with the use of a dedicated hardware.

Non-breath-hold high b-value diffusion-weighted MRI with parallel imaging technique: apparent diffusion coefficient determination in normal abdominal organs.

Purpose: To detect apparent diffusion coefficient (ADC) values in normal abdominal organs using non-breath-hold high b-value diffusion-weighted magnetic resonance imaging (DW-MRI) with a parallel imaging technique.

Materials And Methods: A total of 50 patients with normal abdominal MRI findings were retrospectively enrolled. DW-MRI was performed with b-factors of 0, 500, and 1000 s/mm(2).

The role of HRCT versus CXR in children with recurrent pulmonary infections.

The purpose of this study is to evaluate the role of high-resolution computed tomography (HRCT) versus chest radiography (CXR) in children with recurrent respiratory infections. Fifty-one cases, aged 2 months-13 years, who had a history of recurrent respiratory infections, were examined with CXR and HRCT. HRCT showed that 16/51 of the cases had bronchiectasis.