BRAIN-LESIONS IN PATIENTS WITH MULTIPLE-SCLEROSIS - DETECTION WITH ECHO-PLANAR IMAGING

被引：26

作者：

SIEWERT, B ^{[1
]}

PATEL, MR ^{[1
]}

MUELLER, MF ^{[1
]}

GAA, J ^{[1
]}

DARBY, DG ^{[1
]}

POSER, CM ^{[1
]}

WIELOPOLSKI, PA ^{[1
]}

EDELMAN, RR ^{[1
]}

WARACH, S ^{[1
]}

机构：

[1] HARVARD UNIV,BETH ISRAEL HOSP,SCH MED,DEPT NEUROL,BOSTON,MA 02215

来源：

RADIOLOGY | 1995年 / 196卷 / 03期

关键词：

BRAIN NEOPLASMS; MR; MAGNETIC RESONANCE (MR); COMPARATIVE STUDIES; ECHO PLANAR; SCLEROSIS; MULTIPLE;

D O I：

10.1148/radiology.196.3.7644641

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：

PURPOSE: To evaluate the detection of brain lesions with echo-planar imaging relative to conventional spinecho(SE)imaging. MATERIALS AND METHODS: In 17 patients (three men, 14 women; mean age, 31 years) with multiple sclerosis, the following were compared: single-shot proton-density- and T2-weighted and thin-section T2-weighted echo-planar, proton-density- and T2-weighted multishot echo-planar, and conventional SE sequences. Quantitative and qualitative criteria as well as lesion detectability were evaluated. The proton-density-weighted SE sequence was used as the standard of reference. RESULTS: Multishot sequences were superior to single-shot sequences in image quality and lesion detectability. With the multishot proton-density-weighted sequence, 53 of 54 large lesions and 23 of 30 small lesions were detected; with the single-shot proton-density-weighted sequence, 38 of 54 large lesions and five of 30 small lesions were detected. CONCLUSION: With multishot echo-planar sequences, detectability of large lesions is similar to that with conventional SE imaging. Susceptibility artifact is diminished in comparison to single-shot echo-planar sequences.

引用

页码：765 / 771

页数：7