MR imaging of the abdomen with a phased-array multicoil: Prospective clinical evaluation

Norbert G. Campeau, C. Daniel Johnson, Joel P. Felmlee, John N. Rydberg, R. Kim Butts, Richard L. Ehman, Stephen J. Riederer

Research output: Contribution to journalArticle

72 Scopus citations

Abstract

PURPOSE: To prospectively compare use of a phased-array multicoil and a conventional body coil in abdominal MR imaging. MATERIALS AND METHODS: Thirteen patients (seven men, six women; mean age, 55 years) underwent imaging with a phased-array multicoil and with a conventional body coil. Four pulse sequences were used: T2-weighted spin echo (SE), magnetization-prepared gradient-recalled echo (GRE), breath-hold fast SE, and echo planar (EP). RESULTS: Lesion detection improved the most on fast SE, multicoil-acquired images. Signal-to-noise ratio (S/N) increased 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 fast 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.

Original languageEnglish (US)
Pages (from-to)769-776
Number of pages8
JournalRadiology
Volume195
Issue number3
DOIs
StatePublished - Jun 1995

Keywords

  • Abdomen, MR
  • Liver neoplasms, MR
  • Magnetic resonance (MR), coil arrays

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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