心脏脂肪瘤的CT诊断

CT diagnosis of cardiac lipoma

目的探讨CT在心脏脂肪瘤诊断中的价值。方法对经CT检查并手术病理证实的6例心脏脂肪瘤患者进行分析。4例行电子束CT单层平扫、增强扫描与电影横断增强扫描，2例行64层CT平扫与增强扫描。结果（1）CT诊断右心房心腔内型孤立性脂肪瘤1例，心包内型孤立性脂肪瘤1例，壁在型脂肪瘤4例。其中壁在型2例为起自左心室或右心室及室间隔的浸润性脂肪瘤，2例为起自房室间隔的孤立性脂肪瘤。（2）CT成像与三维重组不但清晰显示肿瘤的位置、形态、大小、边缘和特征性的脂肪密度，提示肿瘤的诊断与分型，而且对并存的冠状动脉受推移位、肺部感染、心包和胸腔积液等异常均可同时显示。结论CT检查对心脏脂肪瘤的诊断和分型具有很高准确性，具有良好应用价值。

Objective To investigate the application of CT in the diagnosis of cardiac lipoma. Methods Retrospective analysis of 6 patients with cardiac lipoma confirmed by operation and pathology was done. Four patients had singles slice electron beam CT plain and contrast and movie scan. Two patients had 64-slice CT plain and enhanced scan. Results （ 1 ） One patient was isolated intracavitary lipoma in the right artrium, 1 patient was isolated intrapericardial lipoma and 4 patients were intramural lipomas. Of the 4 intramural lipoma, 2 were infiltrative lipomas located in the left ventricle wall or the right ventricle and septum, 2 patients were isolated in the atrio-ventricular septums. （2） CT and three-dimensional reconstruction could depict the location, shape, size, margin and characteristic fat density of lipoma, indicating the diagnosis and classifications. The displacement of coronary artery, pulmonary inflammation and effusions of pericardium and pleural cavity could also be revealed. Conclusion Cardiac lipoma can be accurately diagnosed and classified by CT.