CLINICAL COMPARISON OF 3-DIMENSIONAL MP-RAGE AND FLASH TECHNIQUES FOR MR IMAGING OF THE HEAD

被引：37

作者：

RUNGE, VM

KIRSCH, JE

THOMAS, GS

MUGLER, JP

机构：

[1] Magnetic Resonance Imaging and Spectroscopy Center, University of Kentucky, HM103 Medical Center, Lexington, Kentucky, 40536-0084

[2] University of Virginia Medical Center, Charlottesville, Virginia

来源：

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING | 1991年 / 1卷 / 04期

关键词：

BRAIN; MR STUDIES; IMAGE PROCESSING; PULSE SEQUENCES; RAPID IMAGING; 3-DIMENSIONAL IMAGING;

D O I：

10.1002/jmri.1880010417

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

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 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 off-line (poststudy) reconstruction of high-resolution images in any desired plane.

引用

页码：493 / 500

页数：8

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