Methods: According to anatomic classification, the location and the size were determined by using echocardiography in 372 patients with VSD, and were compared with that of surgery findings.
方法：按解剖学室缺分型，用超声心动图对372例室缺进行定位及测量大小，并与手术结果进行对照。
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Conclusion: a fair accuracy can be reached by echocardiography in the location of VSD on the basis of anatomic classification and the VSD size measurement.