Feasibility of integrating high-spatial-resolution 3D breath-hold coronary MR angiography with myocardial perfusion and viability examinations

Thomas K.F. Foo, Vincent B. Ho, Manojkumar Saranathan, Liu Quan Cheng, Hajime Sakuma, Dara L. Kraitchman, Katherine C. Wu, David A. Bluemke

Research output: Contribution to journalReview article

Abstract

The study was institutional review board approved and Health Insurance Portability and Accountability Act compliant. All subjects provided informed consent. Three-dimensional breath-hold coronary magnetic resonance (MR) angiography with use of steady-state free precession was performed in 12 patients up to 20 minutes after 0.2 mmol gadolinium-based contrast material per kilogram of body weight was administered. Within 24 heartbeats, a spatial resolution of up to 1.0 × 1.2 × 2.0 mm was achieved. Sixty-five (82%) of the 79 visualized coronary artery segments had a grade of 3 or 4 on a four-point scale of depiction in which grade 4 indicated excellent depiction. Twenty-seven percent (n = 21) of the 79 segments were assigned a grade of 4; 56% (n = 44), a grade of 3; 16% (n = 13), a grade of 2; and 1% (n = 1), a grade of 1. Coronary MR angiography performed as part of a first-pass myocardial perfusion and viability assessment MR imaging examination is feasible and does not involve additional imaging time.

Original languageEnglish (US)
Pages (from-to)1025-1030
Number of pages6
JournalRadiology
Volume235
Issue number3
DOIs
StatePublished - Jun 1 2005

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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