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目的：评价Ｘ线平片对右室异常肌束的诊断价值及限度。材料与方法：分析经手术证实的右室异常肌束７３例的Ｘ线平片表现，根据血液动力学改变，将此病分为３型：无分流型；左向右分流型；右向左分流型。结果：在Ｘ线平片上，右室异常肌束可表现下列征象：（１）右室增大与心腰凸出不相称（３５／７３例）；（２）左室增大与肺血增多不相称（１５／７３例）；（３）右室流出道处呈局限性凹陷（２３／７３例）。结论：Ｘ线平片检查对本病的诊断具有较大的限度，但若上述３个征象中有２个或３个征象同时存在时，结合临床表现，部分梗阻型病例可提示诊断，进一步作超声检查或心血管造影可确定异常肌束的存在
Objective: To evaluate the diagnostic value and limit of X-ray on abnormal muscle bundle of right ventricle. Materials and Methods: The X-ray findings of surgically confirmed 73 cases of abnormal muscle bundles were analyzed. According to hemodynamic changes, they were divided into 3 types: non-shunt type, left to right shunt type, right to left Shunt type. Results: On the plain radiograph, the abnormal muscular bundle of right ventricle showed the following signs: (1) the right ventricular enlargement was not commensurate with waist lumbar projection (35/73 cases); (2) Disproportion (15/73 cases); (3) limited right ventricular outflow tract depression (23/73 cases). Conclusion: X-ray examination has more limitations on the diagnosis of this disease. However, if there are two or three signs of the above three signs, combined with clinical manifestations, some obstructive cases may prompt diagnosis and further Ultrasonography or angiography can determine the presence of an abnormal muscle bundle