MR-IMAGING OF THE ABDOMEN WITH A PHASED-ARRAY MULTICOIL - PROSPECTIVECLINICAL-EVALUATION

Citation
Ng. Campeau et al., MR-IMAGING OF THE ABDOMEN WITH A PHASED-ARRAY MULTICOIL - PROSPECTIVECLINICAL-EVALUATION, Radiology, 195(3), 1995, pp. 769-776
Citations number
12
Categorie Soggetti
Radiology,Nuclear Medicine & Medical Imaging
Journal title
ISSN journal
00338419
Volume
195
Issue
3
Year of publication
1995
Pages
769 - 776
Database
ISI
SICI code
0033-8419(1995)195:3<769:MOTAWA>2.0.ZU;2-B
Abstract
PURPOSE: To prospectively compare use of a phased-array multicoil and a conventional body coil in abdominal MR imaging. MATERIALS AND METHOD S: Thirteen patients (seven men, six women; mean age, 55 years) underw ent imaging with a phased-array multicoil and with a conventional body coil. Four pulse sequences were used: T2-weighted spin echo (SE), mag netization-prepared gradient-recalled echo (GRE), breath-hold fast SE, and echo planar(EP). RESULTS: Lesion detection improved the most on f ast SE, multicoil-acquired images. Signal-to-noise ratio (S/N) increas ed 64% with fast SE (P = .0005) and EP (P < .0109) sequences. Contrast -to-noise ratio (C/N) doubled (P < .05) with T2-weighted SE sequences. Lesion conspicuity improved on multicoil-acquired images with all fas t sequences (magnetization-prepared GRE, P = .015; fast SE, P = .002; EP imaging, P = .013). There was little difference in respiratory and vascular artifact. Depiction of most abdominal structures improved (P < .01). CONCLUSION: Use of the phased-array multicoil provides better MR images of the abdomen than does use of a conventional body coil.