Comparison Between Gated Cardiac Magnetic Resonance Angiography and Computed Tomography Angiography for Harmony Valve Anatomic Fit Analysis

RVOT measurements on ECG-gated MRA images correlate well with those made from retrospectively gated CTA. Although perimeter plots generated from ECG-gated MRA and CTA measurements were discordant in some patients, the differences were minor and could still be interpreted to indicate implantable anatomy by the operator. These findings suggest that ECG-gated MRA may be an acceptable surrogate for CTA during the anatomic screening process.