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Background: Three-dimensional MRI (3D-MRI) is a reliable tool for the evaluation of anatomical volumes. Volumetric measurement of the normal anterior pituitary gland in childhood has been performed in the past by 2D-MRI calculations, but has inherent inaccuracies. Objective: To obtain accurate normal anterior pituitary gland volume in childhood using 3D-MRI(More)
The aim of this study was to obtain an MRI severity-related classification of diffuse astrocytic tumours able to integrate the histological data in the grading of such tumours. We studied presurgical MR images of 91 patients with a histological diagnosis of astrocytoma, anaplastic astrocytoma and glioblastoma. A score ranging from 1 to 3 was assigned by two(More)
PURPOSE To evaluate the use of magnetization transfer and the apparent enhancement of lesions on contrast-enhanced MR images in patients with multiple sclerosis. METHODS Contrast-enhanced T1-weighted spin-echo MR images obtained in 20 patients with relapsing-remitting multiple sclerosis, with and without magnetization transfer, were evaluated to determine(More)
The latest MR units are provided with the Turbo-Field-Echo technique which permits gradient-echo imaging with very short TE and TR and is optimized to yield the highest possible image quality within a very short acquisition time--i.e., less than 5 seconds. This dynamic study was aimed at depicting normal laryngeal and oropharyngeal movements during maximal(More)
PURPOSE The aim of this study was to evaluate the changes undergone by orbital structures during peribulbar anesthesia. METHODS CT-thin slices were acquired and 8-9 ml of anesthetic, with a small part of low-density non-ionic water-soluble contrast medium were injected under CT guide once to follow extraconal spreading and diffusion to intraconal(More)
INTRODUCTION We studied the hippocampal region using Fluid Attenuation Inversion Recovery (Turbo-FLAIR) sequences to detect signal intensity abnormalities, and volumetric sequences to detect cortical thickness changes, in patients with drug-resistant temporal epilepsy. MATERIALS AND METHODS We examined 30 patients with drug-resistant temporal epilepsy(More)
Sir, We present the case of a 10-year-old boy 2 days after the acute onset of paraplegia. Magnetic resonance imaging and 3D time-offlight MR angiography of the brain showed a vascular malformation which was supplied by branches of the middle and posterior cerebral arteries and drained into Galen's vein (Fig. 1). Magnetic resonance imaging of the(More)
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