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Abstract #2595

Towards a subject-specific calibration of a systole model for CMR undergoing heart rate variations

Pierre-Andr Vuissoz 1,2 , Christophe Meyer 1,2 , Jacques Felblinger 3,4 , and Laurent Bonnemains 1,2

1 Imagerie Adaptative Diagnostique et Interventionnelle, Universit de Lorraine, Nancy, France, 2 U947, INSERM, Nancy, France, 3 CIC-IT 1433, INSERM, Nancy, France, 4 University Hospital Nancy, Nancy, France

Due to heart rate variability, Cardiac Magnetic Resonance requires the determination of a cardiac phase model to reconstruct trigged or cine images. Calibration of such a model can be personalized on a patient basis using a 1D+t phase contrast real time acquisition. Benefit of an automatic calibration in term of temporal precision of the predicted systole phase has been tested on twenty-three healthy volunteers. Personalized adaptive cardiac model predicted end-systolic time better than global model on the whole population. Personalization of subject-specific cardiac model is feasible automatically in MRI and reduces the prediction error of systole.

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