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J Magn Reson Imaging. 1991 Jul-Aug;1(4):493-500.

Clinical comparison of three-dimensional MP-RAGE and FLASH techniques for MR imaging of the head.

Author information

1
Magnetic Resonance Imaging and Spectroscopy Center, University of Kentucky, Lexington 40536-0084.

Abstract

Three-dimensional (3D) MP-RAGE (magnetization-prepared rapid gradient-echo) imaging was evaluated as a high-resolution 3D T1-weighted brain imaging technique for patients with suspected neurologic disease. Fourteen patients were studied. In five, 3D MP-RAGE images were compared with 3D FLASH (fast low-angle shot) images. Signal difference--to-noise ratios and T1 contrast were not statistically different for 3D MP-RAGE images as opposed to 3D FLASH images. Advantages intrinsic to the application of 3D MP-RAGE sequences include decreased imaging time and decreased motion artifact. With this technique, it is possible to perform a relatively motion-insensitive, T1-weighted screening brain study with voxel resolution of 1.0 x 1.4 x 2.0 mm or smaller, in an imaging time of 5.9 minutes or less--permitting offline (poststudy) reconstruction of high-resolution images in any desired plane.

PMID:
1790373
[Indexed for MEDLINE]

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