Imaging myocardial stiffness provides useful clinical information in various cardiac conditions and diseases. We developed an intrinsic shear wave MRE method for determining shear wave speed in the interventricular septum using an adapted motion-sensitised pencil beam respiratory navigator sequence (cRNAV). Time of flight between two imaged locations in the basal and apical septum was used to estimate flexural shear wave velocity. Initial testing provided promising results in healthy volunteers and two patients with hypertrophic cardiomyopathy (HCM).
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