Abstract #4432

Feasibility of Cardiac-Gated 3T MRI-Guided Myocardial Ablation with High Intensity Focused Ultrasound

Aravind Swaminathan¹, Viola Rieke², Randy Lee King², John Pauly³, Kim Butts-Pauly², Michael McConnell¹

¹Medicine, Stanford University School of Medicine, Stanford, CA, USA; ²Radiology, Stanford University, Stanford, CA, USA; ³Electrical Engineering, Stanford University, Stanford, CA, USA

3T MRI guided cardiac HIFU was performed and proved feasible in an ex-vivo study on porcine myocardium. Left ventricular septal ablation lesions could be created of varying size and with cardiac gating. Ablation was successfully monitored with MR temperature mapping.