Cross-sectional and in-plane coronary vessel wall imaging using a local inversion prepulse and spiral read-out: A comparison between 1.5 and 3 Tesla

Sarah A. Peel, Tarique Hussain, Tobias Schaeffter, Gerald F. Greil, Miriam W. Lagemaat, Rene M. Botnar

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Purpose: To compare cross-sectional and in-plane coronary vessel wall imaging using a spiral readout at 1.5 and 3 Tesla (T). Materials and Methods: Free-breathing coronary vessel wall imaging using a local inversion technique and spiral readout was implemented. Images were acquired in ten healthy adult subjects on a 3T clinical scanner using a 32-element cardiac coil and repeated on a 1.5T clinical scanner using a 5-element coil. Results: Cross-sectional and in-plane spiral vessel wall imaging was performed at both 1.5 and 3T. In cross-sectional images, artifact scores were superior at 1.5T (P < 0.05) but no significant difference was found in image quality scores compared with 3T. Image quality (P < 0.01) and artifact scores (P < 0.01) were found to be superior for in-plane images at 1.5T. Vessel wall sharpness in the in-plane orientation was also found to be higher at 1.5T (P < 0.03). Conclusion: Although excellent in-plane coronary vessel wall images can be acquired at 3T, the overall robustness may be affected by off-resonance blurring due to increased B0 inhomogeneity compared with 1.5T.

Original languageEnglish (US)
Pages (from-to)969-975
Number of pages7
JournalJournal of Magnetic Resonance Imaging
Volume35
Issue number4
DOIs
StatePublished - Apr 1 2012

Keywords

  • coronary artery disease
  • coronary vessel wall
  • magnetic resonance imaging
  • spiral readout

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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