心脏良性非粘液瘤性肿瘤的电子束CT诊断

目的：探讨电子束ＣＴ（ＥＢＣＴ）在心脏良性非粘液瘤性肿瘤诊断中的价值。方法：对１９９５－ ０７～１９９９－ ０２，经ＥＢＣＴ检查并手术、病理证实的７ 例心脏良性非粘液瘤性肿瘤的ＥＢＣＴ、超声心动图结果与手术、病理所见进行回顾性分析。７个病例，男性４例（５７．１％ ），女性３例（４２．９％ ），年龄从５个月至４２岁，平均２１．６岁。所有病例同时行单层增强和电影序列。结果：７例心脏非粘液性良性肿瘤，包括２例浸润性脂肪瘤，２ 例纤维瘤，１例横纹肌瘤，１例淋巴管瘤，１ 例间皮瘤，ＥＢＣＴ不但能够明确肿瘤的位置、附着、大小、范围、运动，而且以优良的密度分辨率，在６个病例显示肿瘤病理学特征，提示正确的病理学定性诊断，准确性为８５．７％ ；２ 个病例术后提示肺不张与胸腔积液。同组病例中，超声心动图无１例做出正确组织病理学定性。结论：ＥＢＣＴ具有优良的时间、空间和密度分辨率，在对超声心动图难以准确定性的良性非粘液瘤性肿瘤的诊断中具一定优势，同时可展示邻近病变情况

EBCT Diagnosis of Benign Non-myxomatous Cardiac Neoplasms

Objective:To investigate the diagnostic value of electron beam CT(EBCT)in benign non-myxomatous cardiac neoplasms.Methods:EBCT and echocardiography findings of 7 patients who had had EBCT examination and been confirmed with benign non-myxomatous cardiac neoplasms by operation and pathology between July 1995 and Feb 1999 were analyzed retrospectively.Among the 7 patients,4 patients were male and 3 patients were female,ranged in age from 5 months to 42 years(mean 21.6 years).All the 7 patients were performed both single slice mode(SSM)and movie mode.Results:7 patients with benign non-myxomatous cardiac neoplasms included 2 patients with infiltrative lipoma,2 patients with fibroma,1 patient with rhabdomyxoma,1 patient with lymphangioma and the last one with mesothelioma of the mitral valve.EBCT could not only demonstrate the tumors location,attachment site,size,extension and motion,but also reveal their pathological characterization for qualitative diagnosis by means of excellent dentisy resolution.In the group,echocardiography could not make any correct histopathological diagnosis.In 2 patients,EBCT uncovered postoperative atelectasis and pleural effusion.Conclusion:Providing excellent spatical,tempral and density resolution,EBCT is superior to echocardiography in the defination of benign non-myxomatous cardiac neoplasms,which are diffcult to be histopathologically diagnosed using echocardiography.EBCT is valuable for the assessment of commitment to neigbouring organs.