High intensity focused ultrasound-mediated histotripsy is a modality for targeted, non-invasive interventions. As temperature changes detected by MR-thermometry are not directly related to histotripsy treatment success, we propose quantitative susceptibility mapping (QSM) to evaluate and monitor treatment efficacy. Fresh porcine heart muscle tissue was sonicated using a clinical MR-HIFU system. Herein, we demonstrate the successful visualization of histotripsy-induced lesions by QSM.
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