Two-dimensional multishot echo-planar coronary MR angiography

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

This work presents a two-dimensional (2D) multishot echo-planar imaging (EPI) technique for magnetic resonance angiography (MRA) of individual coronary arteries in a 17-heart-beat breath-hold. Conventional 2D and 3D segmented gradient-echo (GRE) coronary MRA requires repetitive excitation of the same slice or slab within each cardiac cycle, which can result in reduced blood signal and in motion artifacts. Two-dimensional multishot EPI can address these limitations by eliminating multiple excitations per cardiac cycle, using large flip-angle excitations, markedly reducing the data acquisition window, and performing oblique multislice 2D imaging. The goal of this study was to assess the feasibility of breath-hold 2D multishot EPI for multislice coronary MRA and to demonstrate its reliability by consistently acquiring high-quality images of the coronary arteries in a series of 16 volunteers.

Original languageEnglish (US)
Pages (from-to)883-889
Number of pages7
JournalMagnetic Resonance in Medicine
Volume40
Issue number6
DOIs
StatePublished - Dec 1998

Keywords

  • Coronary
  • Echo- planar imaging
  • Magnetic resonance angiography
  • Magnetic resonance imaging

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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