Objective To evaluate the value of echocardiography in the guidance of percutaneous transluminal septal myocardial ablation(PTSMA) in hypertrophic obstructive cardiomyopathy(HOCM).

• 目的评价超声心动图在肥厚型梗阻性心肌病(HOCM)经皮室间隔化学消融术(PTSMA)治疗中的应用价值。