COMPARATIVE ANALYSIS OF TWO ORAL CONTRAST AGENT VOLUMES FOR COMPUTED TOMOGRAPHY ENTEROGRAPHY IN CROHN'S DISEASE PATIENTS.

Background: Crohn's disease (CD) is an inflammatory bowel disease characterized by a chronic and recurrent inflammation of the gastrointestinal tract caused by an interaction of genetic and environmental factors.

Objective: To compare the quality and acceptance of two different oral contrast volumes for computed tomography enterography in Crohn's disease patients.

Methods: A cross-sectional study was conducted in 58 consecutive Crohn's disease patients who randomly received an oral contrast agent composed of 78.

[Cerebral magnetic resonance spectroscopy in patients with hepatic encephalopathy: analysis before and after liver transplantation].

Objectives: To determine the metabolite levels (myo-inositol [MI], choline [Cho], glutamate [Glx], creatine [Cr] and N-acetylaspartate [NAA]) visible on magnetic resonance spectroscopy in patients with chronic hepatic failure, before and after liver transplantation and to correlate these data with results of neuropsychiatric tests and clinical findings.

Methods: Twenty five patients with chronic hepatic failure from the Liver Transplantation Unit of the Federal University of Parana were prospectively studied. Patients were submitted to clinical evaluation and magnetic resonance spectroscopy.

Adult cerebellar medulloblastoma: CT and MRI findings in eight cases.

Medulloblastoma is a brain tumor of neuroepithelial origin, which represents 15 to 30% of all pediatric brain tumors, and less than 1% of CNS adult neoplasms. We report the imaging findings of 8 adult patients with medulloblastoma. The mean age was 35 years, ranging from 20 to 65 years, and the male:female rate was 3:5.