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目的:为经皮穿刺室间隔膜部缺损的封堵术提供应用解剖学基础。方法:解剖测量38例(男25.女13)正常成年人的心标本的室间隔膜部及周围结构。结果:室间隔膜部的形态可分为三角型、圆型和椭圆型;各型的出现率分别为58％(22例)、23.7％(9例)和18.3％(7例)。室间隔膜部在左室面的高度为(8.79±2.27)mm。右室面高度为(6.43±1.43)mm。室间隔膜部的长度为(9.37±2.52)mm。室间隔膜部上、下、前、后方和中点的厚度分别为(0.80±0.19)mm、(0.70±0.16)mm、(0.78±0.28)mm、(0.75±0.1 5)mm和(0.52±0.13)mm。结论:室间隔膜部以三角型为主,多位于室上嵴的后缘,膜部的左室面高于右室而和靠近右室面,建议封堵器的左室面的面积应大于右室面。
OBJECTIVE: To provide anatomic basis for the occlusion of percutaneous membrane interphase defect. Methods: Anatomical measurements of the interventricular septum and peripheral structures in 38 specimens of normal adults (25 men and 13 women) were performed. Results: The morphology of interventricular septum was divided into triangular, circular and oval types. The incidence of each type was 58% (22 cases), 23.7% (9 cases) and 18.3% (7 cases). The height of the interventricular septum in the left ventricular plane was (8.79 ± 2.27) mm. Right ventricular height was (6.43 ± 1.43) mm. The length of the interventricular septum was (9.37 ± 2.52) mm. (0.80 ± 0.19) mm, (0.70 ± 0.16) mm, (0.78 ± 0.28) mm, (0.75 ± 0.1 5) mm and (0.52 ± 0.13) mm. Conclusion: The interventricular septum is mainly triangular in shape, mostly located on the posterior edge of the suprasternal crista. The left ventricular surface of the septum is higher than the right ventricle and close to the right ventricular surface. It is suggested that the area of left ventricular surface should be larger than Right ventricular surface.