Marion de
Roquefeuil1,2, Anne Menini1,2, Jean-Marie Escany3,
Pierre-Yves Marie3, Jacques Felblinger1,2
1U947, INSERM, Vandoeuvre-ls-Nancy,
France, France; 2IADI, Nancy-Universit, Nancy, France, France; 3Department
of Nuclear Medicine, CHU, Nancy, France
Heart
Rate (HR) variation is around 30 % during healthy subject breath-holds
necessary for cardiac MR acquisition. As MR system is synchronized with R
peaks, image contrast depends on HR evolution. Especially, cardiac T2 mapping
used in heart transplantations and pathologies follow up is biased by HR
variation. We propose a method to compensate this systematic error and to
improve diagnostic quality: a RR-adjusted corrective factor applied on SE
signal in k-space.
Keywords