Teofilovski-Parapid G, Baptista C A, DiDio L J, Vaughan C
Institute of Anatomy, School of Medicine, University of Beograde, Yugoslavia.
Surg Radiol Anat. 1991;13(1):23-8. doi: 10.1007/BF01623136.
Investigation of the membranous portion of the interventricular septum (MPIS) and its relationship with the aortic valve was performed in 32 human hearts of adult individuals (19 Caucasians and 11 non-Caucasians). With transillumination of the MPIS the specimens were photographed and 35 mm slices obtained. These were digitized into Apple Macintosh II using a Dage Model 68 video camera and a Data Translations DT 2255 frame grabber. The areas and the distances were traced manually, using the NIH Image program (Wayne Rasband, NIH, Research Services Branch, NIHM). The following forms of MPIS were found: oval (31.3%), triangular (28.1%), quadrangular (18.8%), circular (15.6%) and semilunar (6.2%); its surface area varied from 5.65 mm2 to 142.63 mm2 (mean 48.82 +/- 29.17 mm2). The superior border of the MPIS was in close relationship with the aortic valve, and its upper part was usually (41%) in direct continuity with the attachments of both right (RAC) and posterior (PAC) aortic cusps, or with PAC (34%) or RAC (6%) only. Rarely (19%) the MPIS lay below the attachments of both cusps. The distance between the MPIS superior border and the attachment of the RAC was not greater than 5.89 mm (mean 1.69 mm +/- 1.9 mm). The distance between the superior border of the MPIS and the attachment of the PAC was not greater than 5.63 mm (mean 0.77 +/- 1.49 mm). Differences between sex, race and age groups were not statistically significant.
对32例成年个体（19例白种人和11例非白种人）的心脏进行了室间隔膜部（MPIS）及其与主动脉瓣关系的研究。通过对MPIS透照，对标本进行拍照并获取35mm切片。使用Dage Model 68摄像机和Data Translations DT 2255图像采集卡将这些切片数字化到苹果麦金塔II型计算机中。使用美国国立卫生研究院（NIH）的Image程序（Wayne Rasband，NIH，研究服务处，NIHM）手动追踪面积和距离。发现MPIS有以下几种形态：椭圆形（31.3%）、三角形（28.1%）、四边形（18.8%）、圆形（15.6%）和半月形（6.2%）；其表面积从5.65mm²到142.63mm²不等（平均48.82±29.17mm²）。MPIS的上缘与主动脉瓣关系密切，其上部通常（41%）与右（RAC）和后（PAC）主动脉瓣叶的附着部直接连续，或仅与PAC（34%）或RAC（6%）连续。很少（19%）情况下，MPIS位于两个瓣叶附着部下方。MPIS上缘与RAC附着部之间的距离不大于5.89mm（平均1.69mm±1.9mm）。MPIS上缘与PAC附着部之间的距离不大于5.63mm（平均0.77±1.49mm）。性别、种族和年龄组之间的差异无统计学意义。
