摘要
目的：探索性地研究共同动脉干（ＴＡ）的Ｍ型、二维超声心动图及多普勒超声心动图的表现，以探讨无创诊断本病的可行性。方法：通过与手术（ｎ＝３）及心血管造影（ｎ＝４）结果对照研究，观察了７例ＴＡ的Ｍ型、二维超声心动图及多普勒超声心动图所见。结果：７例患者中，３例经手术证实，４例经心血管造影证实为ＴＡ，所有患者表现为左心增大，大动脉干增宽，前壁与室间隔连续性中断，大动脉骑跨室间隔，右室流出道呈盲端，未能探及到肺动脉瓣。７例患者中，１例主动脉为３瓣叶伴有１个小的附瓣，２例为４瓣叶，４例为３瓣叶。Ⅰ型ＴＡ主动脉根部增宽不明显，于主动脉窦部上方后壁可探及发出的肺动脉，在主动脉长轴部位较易探查，而Ⅱ型ＴＡ则于胸骨上窝主动脉弓长轴的升弓部探及到发出的肺动脉。还提到了与重型法乐四联症，主肺动脉间隔缺损的鉴别要点。结论：总结了超声心动图诊断ＴＡ的特征及依据。
Objective: To study the possiblity of noninvasive diagnosis of truncus arteriosus with M-mode, two-dimensional and Doppler echocardiography. Methods: Comparing with the results of angiography and surgery,the manifestations of 7 cases of truncus arteriosus were studied with M-mode, two-dimensional and echocardiography. Results: Among 7 cases reported, 3 were confirmed by surgery,4 by angiography. The echocardiographic manifestations of them were enlargement of the left ventricle, dilatation of the arteriosus, disconnection between its anterior wall and the ventricular septum which was overridden by the arieriosus, blind-ended right ventricular out-flow tract, and absence of pulmonary valve. The cuspids of aortic vavles were 3 in 4 cases, 4 in 2,and 3 with a small one in 1. As for the echocardiographic differentiation of type Ⅰ and type Ⅱ truncus arteriosus,no obvious dilatation of the arteriosus was found in typeⅠ, and the pulmonary artery could be detected to have originated from the posterior wall above the aortic sinus with long axis view of the left ventricle in type Ⅰ,but from arch-descending part with long axis view of the aortic arch in typeⅡ. The characteristics for differentiation of truncus arteriosus from tetralogy of Fallot and pulmonary arterial septal defect were mentioned.Conclusion: Echocardiography can be used as a non-invasive method to diagnose truncus arteriosus accurately.
出处
《中国循环杂志》
CSCD
1996年第2期79-81,共3页
Chinese Circulation Journal
