由于膝盖高度曲的位置而导致扭曲的脊柱动脉可能会引起扭曲,从而产生不利的血液动力学状态
Hiroyuki Nagita1, Chen Wang2, Hiroyuki Saigusa3
1Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo.
概括
在膝盖曲过程中,形动脉的动态变化会导致扭曲,这可能会影响内血管治疗结果. 血液动力学分析显示最大曲率处的不利条件,表明治疗成功的风险.
科学领域:
- 血管外科 血管外科
- 生物医学工程 生物医学工程
- 医疗成像医学成像
背景情况:
- 对于股骨关节动脉疾病的内血管装置已经进步.
- 在膝盖曲过程中动态尾动脉变化的对治疗的影响还未得到充分研究.
- 3D分析对于理解这些动态变化及其血液动力学效应至关重要.
研究的目的:
- 为了分析膝盖曲期间尾动脉的动态变化.
- 为了研究这些位置变化的血液动力学后果.
- 评估对内血管治疗策略的影响.
主要方法:
- 开发了一种计算机断层扫描协议,用于直角和最大的膝盖曲.
- 招募了30名患有下肢动脉疾病的患者.
- 使用V-Modeler软件进行3D解剖和血液动力学分析.
主要成果:
- 鉴定了各种关动脉变形,包括关点和辅助曲.
- 曲主要是在最大曲位置观察到的.
- 血液动力学分析显示,在最大曲率下,墙壁剪切应力最小减少,振荡剪切指数增加.
结论:
- 膝盖最大曲的扭曲可能会影响内血管治疗结果,特别是在习惯深度膝盖曲的人群中.
- 在尾动脉最大曲率处的不利的血液动力学条件对内血管干预构成挑战.
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