Relationship between the membranous septum and the virtual basal ring of the aortic root in candidates for transcatheter implantation of the aortic valve
Relationship between the membranous septum and the virtual basal ring of the aortic root in candidates for transcatheter implantation of the aortic valve
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DOI：
10.1002/ca.23071
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发表时间：
2018-05-01
期刊：
影响因子：
2.4
通讯作者：
Anderson, Robert H.
中科院分区：
文献类型：
--
作者：
Mori, Shumpei;Tretter, Justin T.;Anderson, Robert H.
了解膜隔的解剖结构，作为房室传导轴位置的替代，是进行经导管主动脉瓣植入术（TAVI）的先决条件。同样重要的是它的虚拟基环的关系。然而，这一特征还没有在活的心脏中得到充分的描述。我们分析了107名TAVI候选人（84.1 ± 5.2岁，68%为女性）的计算机断层血管造影数据集。利用多平面重建，我们测量了膜隔的高度和宽度，以及其上级和下缘与虚拟基底环平面的距离。我们还评估了二尖瓣和室间隔之间主动脉根部的楔入程度。膜隔的平均高度和宽度分别为6.6 ± 2.0和10.2 ± 3.1 mm，其大小与主动脉根的大小显著相关（P
Knowledge of the anatomy of the membranous septum, as a surrogate to the location of the atrioventricular conduction axis, is a prerequisite for those undertaking transcatheter implantation of the aortic valve (TAVI). Equally important is its relationship of the virtual basal ring. This feature, however, has yet to be adequately described in the living heart. We analyzed computed tomographic angiographic datasets from 107 candidates (84.1 +/- 5.2 years, 68% women) for TAVI. Using multiplanar reconstructions, we measured the height and width of the membranous septum, and the distances of its superior and inferior margins from the virtual basal ring plane. We also assessed the extent of wedging of the aortic root between the mitral valve and the ventricular septum. Mean heights and widths of the membranous septum were 6.6 +/- 2.0, and 10.2 +/- 3.1 mm, respectively, with its size significantly associated with that of the aortic root (P