基于多层螺旋计算机断层扫描病理性心肌脂肪浸润的影像表现

Imaging manifestations of pathological fatty infiltration of the myocardium under multislice spiral computed tomography

目的探讨病理性心肌脂肪浸润的多层螺旋计算机断层扫描(multislice spiral computed tomography,MSCT)表现,研究病理性心肌脂肪浸润分布特征。方法回顾性分析99例诊断病理性心肌脂肪浸润的患者,每例患者的MSCT扫描原始数据均行心脏多平面重建,观察心肌脂肪浸润形态特点和分布规律,分析病理性心肌脂肪浸润的MSCT影像表现。结果 99例病理性心肌脂肪浸润患者中,陈旧性心肌梗死脂肪浸润58例(58.5%,58/99),致心律失常性右心室发育不全7例(7.1%,7/99),房间隔脂肪瘤样肥厚6例(6.1%,6/99),病毒性心肌炎28例(28.3%,28/99),其脂肪分布各具备一定特征性。结论不同病变所致的病理性心肌脂肪浸润的形态特征及分布区域具有各自的影像特征,有助于鉴别诊断。

Objectives To investigate the imaging manifestations of pathological fatty infiltration of the myocardium by muhislice spiral computed tomography （MSCT）. Methods The morphological characteristics and distribution patterns of pathological fatty infiltration in the multi-planar reconstructed MSCT images of 99 patients were analyzed retrospectively. Results The 99 cases of pathological fatty infiltration which included old myocardial infarction （58 cases, 58.5%, 58/99）, arrhythmogenic right ventricular cardiomyopathy or dysplasia （ARVC/ARVD） （7 cases, 7.1%, 7/99）, lipomatous hypertrophy of the interatrial septum （6 case, 6.1%, 6/99） and viral myocarditis （28 cases, 28.3%, 28/99） showed certain characteristics and distribution patterns. Conclusions The morphological characteristics and distribution patterns of fatty infiltration can help to differentiate the types of lesions.