动脉瘤形成前后脑动脉的血流动力学。
Hemodynamics in a cerebral artery before and after the formation of an aneurysm.
作者信息
Mantha A, Karmonik C, Benndorf G, Strother C, Metcalfe R
机构信息
Department of Mechanical Engineering, University of Houston, TX 77204-4066, USA.
出版信息
AJNR Am J Neuroradiol. 2006 May;27(5):1113-8.
Abstract
Using data obtained from 3D digital subtraction angiography acquisitions, computational fluid dynamics techniques were used first to assess hemodynamic factors in geometrically correct models of 3 paraclinoid aneurysms and then again for assessment after virtual removal of the aneurysms and reconstruction of the parent artery. Simulations revealed an area of relatively low and rotating wall shear stresses at the location at which each aneurysm had developed. This phenomenon, to our knowledge, has not been previously described.
摘要
利用从三维数字减影血管造影采集获得的数据，首先使用计算流体动力学技术评估3个床突旁动脉瘤几何正确模型中的血流动力学因素，然后在虚拟去除动脉瘤并重建母动脉后再次进行评估。模拟结果显示，在每个动脉瘤形成的位置存在一个壁面剪应力相对较低且呈旋转状态的区域。据我们所知，这一现象此前尚未有过描述。
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