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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...
We aimed to assess the relationship of the rotational position of the aortic root to its underlying ventricular support, and to the position of the inferior margin of the membranous septum, which serves as a surrogate of the atrioventricular conduction axis. We analyzed 40 normal heart specimens (19 children, 21 adults). The inferior margin of the membranous septum was measured relative to the virtual...
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