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Four‐dimensional respiratory motion‐resolved whole heart coronary MR angiography

Free‐breathing whole‐heart coronary MR angiography (MRA) commonly uses navigators to gate respiratory motion, resulting in lengthy and unpredictable acquisition times. Conversely, self‐navigation has 100% scan efficiency, but requires motion correction over a broad range of respiratory displacements, which may introduce image artifacts. We propose replacing navigators and self‐navigation with a respiratory motion‐resolved reconstruction approach.