Based on 3-d reconstruction of coronary arterial tree, a method was proposed to calculate the 3-d values of diameter, length, and branch Angle in 3-d quantitative coronary angiography (QCA).
本文在冠状动脉树三维重建的基础上,研究了冠状动脉的三维定量分析方法,提出血管直径、分支夹角和血管段长度的三维测量方法。
What's more, their smaller coronary arteries-the twigs on the arterial tree-can fail to dilate when they should, further restricting blood flow.
而且她们细小的冠状动脉血管,就是主动脉树上的分枝,在需要的时候很难被扩大,更加限制了血流。
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