A 79-year-old woman with hypertrophic obstructive cardiomyopathy (HOCM) underwent percutaneous transluminal septal myocardial ablation (PTSMA) for drug-refractory symptoms of New York Heart Association (NYHA) functional Class IIm. Four-dimensional flow magnetic resonance imaging (MRI) was performed before, 3 months after and 1 year after PTSMA to evaluate the blood flow pattern and turbulent kinetic energy (TKE) using a vendor-provided software. We defined TKE_peak as the sum of the entire region from the left ventricle to the aortic arch in the systolic phase.

中文翻译：

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二维流磁共振成像显示肥厚性梗阻性心肌病经皮腔内隔室消融后湍动能降低

一名患有肥厚性梗阻性心肌病（HOCM）的79岁妇女因纽约心脏协会（NYHA）功能性IIm类药物的难治性症状而接受了经皮腔内隔室心肌消融（PTSMA）。使用供应商提供的软件在PTSMA之前，之后3个月和之后1年进行了四维流磁共振成像（MRI），以评估血流模式和湍流动能（TKE）。我们将TKE_峰定义为收缩期从左心室到主动脉弓的整个区域的总和。