Automated Identification of Minimal Myocardial Motion for Improved Image Quality in Coronary MRA at 3T
Desai M, Stuber M, Ustun A, Weiss R
Cleveland Clinic Heart Center
FREEZE, an automated software tool for the identification of the period of minimal myocardial motion is developed and tested. Quantitative analysis demonstrated that vessel length, vessel sharpness, SNR and CNR were significantly improved (all P<0.05) when imaging was performed at the software prescribed trigger delay. Consistent with these objective findings, image quality by consensus reading also improved significantly when using the automated prescription of the period of minimal myocardial motion. FREEZE not only improves image quality in coronary MRA but also minimizes operator dependence while ease-of-use is improved.