Abdominal phase-contrast MR angiography: Breath-hold versus non-breath-hold techniques

Amy K. Hara, David J. Burkart, C. Daniel Johnson, Richard L. Ehman, Duane M. Ilstrup

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Breath-hold magnetic resonance (MR) imaging is now replacing many non-breath-hold pulse sequences in the upper abdomen because of faster imaging times and improved image quality. The authors compared non-breath-hold cine phase-contrast (PC) and breath-hold 2D phase-contrast (2DPC) magnetic resonance (MR) angiograms of the main portal vein (MPV) and superior mesenteric artery (SMA) in 12 volunteers. All angiograms were graded in overall image quality, vessel conspicuity, and signal-to-noise ratios (SNR). In the MPV MR angiograms, the breath-hold 2DPC sequence produced better images than the non-breath-hold cine PC sequence as graded by overall image quality (P = .016) and SNR (P = .004). Conversely, in the SMA MR angiograms, the non-breath-hold cine PC sequence produced better images than the breath-hold sequence in terms of overall image quality (P = .008) and SNR (P = .008). By reducing the most significant cause of image artifacts, (ie, using a breath-hold 2DPC sequence to decrease respiratory misregistration of the MPV, and using a cardiac-gated cine PC sequence to minimize pulsatile artifacts of the SMA), one can clearly optimize the quality of MR angiography.

Original languageEnglish (US)
Pages (from-to)94-98
Number of pages5
JournalJournal of Magnetic Resonance Imaging
Volume6
Issue number1
DOIs
StatePublished - Jan 1 1996

Keywords

  • 2D phase-contrast
  • Cine phase-contrast
  • MR angiography
  • Portal vein
  • Superior mesenteric artery

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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