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

Norbert G Campeau, C. Daniel Johnson, J. P. Felmlee, J. N. Rydberg, R. K. Butts, Richard Lorne Ehman, Stephen J Riederer

Research output: Contribution to journalArticle

72 Citations (Scopus)

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
StatePublished - 1995

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Echo-Planar Imaging
Signal-To-Noise Ratio
Abdomen
Artifacts
Blood Vessels
Noise

Keywords

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

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

Cite this

MR imaging of the abdomen with a phased-array multicoil : Prospective clinical evaluation. / Campeau, Norbert G; Johnson, C. Daniel; Felmlee, J. P.; Rydberg, J. N.; Butts, R. K.; Ehman, Richard Lorne; Riederer, Stephen J.

In: Radiology, Vol. 195, No. 3, 1995, p. 769-776.

Research output: Contribution to journalArticle

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T1 - MR imaging of the abdomen with a phased-array multicoil

T2 - Prospective clinical evaluation

AU - Campeau, Norbert G

AU - Johnson, C. Daniel

AU - Felmlee, J. P.

AU - Rydberg, J. N.

AU - Butts, R. K.

AU - Ehman, Richard Lorne

AU - Riederer, Stephen J

PY - 1995

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N2 - 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.

AB - 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.

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