Fellner, F and Holl, K and Held, P and Fellner, C and Schmitt, R and BohmJurkovic, H (1996) A T1-weighted rapid three-dimensional gradient-echo technique (MP-RAGE) in preoperative MRI of intracranial tumours. NEURORADIOLOGY, 38 (3). pp. 199-206. ISSN 0028-3940,
Full text not available from this repository.Abstract
Our purpose was to determine the value of a T1-weighted rapid three-dimensional gradient-echo technique in preoperative MRI of brain tumours. We examined 30 patients with intracranial tumours who underwent neurosurgery, using T1-weighted magnetisation-prepared rapid gradient-echo (MP-RAGE) and axial T1-weighted spin echo (SE) sequences, both before and after contrast medium (Gd-DTPA). Signal and contrast behaviour of anatomical and pathological structures were assessed with regions-of-interest (ROI) and visual inspection. Imaging results were compared with operative results. In 5 cases tumours and anatomical structures were segmented in MP-RAGE data sets. The MP-RAGE sequence considerably improved delineation of grey and white matter and small anatomical structures (vessels, cranial nerves), and significantly reduced flow artefacts. Contrast behaviour of tumours was similar with both techniques. Correlation of imaging with the operative results confirmed the reliability of the MP-RAGE sequence. Segmenration of MP-RAGE data sets allows three-dimensional display, which enables one to document the relevant information on a few images in selected cases.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SEQUENCE; SEGMENTATION; HEAD; magnetic resonance imaging; pulse sequences; 3D; intracranial tumours |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:36 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51846 |
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