论文标题
与Incorporated Branch的AAA中多层流量调节器部署的实验分析
Experimental analysis of a Multilayer Flow Modulator deployment in an AAA with incorporated branch
论文作者
论文摘要
目的：通过实验评估具有和没有掺入分支的腹部主动脉动脉瘤（AAA）模型中多层流调节器（MFM）设备部署的效果。方法：开发了一个实验流和压力监测系统，以分析合格的放射科医生执行的MFM部署程序。记录了过程中的压力和流速演变。在具有和没有MFM设备的模型上进行了粒子图像速度法（PIV）实验，以评估和比较动脉瘤中的流动模式以及局部流速和涡度。结果：实验显示MFM设备部署期间和部署后压力和流量没有显着变化。加入分支的流速完全保存。在所有模型上，动脉瘤流速度均显着降低。此外，该设备修改了局部流动模式，减少了涡度并更好地喂食Incorporated Branch。结论：第一项实验研究为更好地理解MFM设备的机制提供了基础，该机理允许在保留掺入的分支并降低内左式II型风险的同时减少炎症内流动流量。为这项研究开发的实验系统有效地模拟了血管内手术并研究了血管内装置的安全性和有效性。
Purpose: To experimentally evaluate the effect of a Multilayer Flow Modulator (MFM) device deployment in an Abdominal Aortic Aneurysm (AAA) model with and without incorporated branch. Methods: An experimental flow and pressure monitoring system was developed to analyze the MFM deployment procedure performed by a qualified radiologist. The pressure and flow rate evolution during the procedure was recorded. Particle Image Velocimetry (PIV) experiments were conducted on models with and without MFM device to evaluate and compare flow patterns and local flow velocity and vorticity in the aneurysm. Results: The experiments revealed no significant change in pressure and flow rate during and after deployment of the MFM device. The flow rate of the incorporated branch was fully preserved. On all models, the aneurysmal flow velocity was significantly reduced. In addition, the device modified local flow patterns, reducing vorticity and better feeding the incorporated branch. Conclusion: This first experimental study provides the basis for a better understanding of the mechanism of the MFM device, which allows intra-aneurysmal flow decrease while preserving incorporated branch and reducing the risk of endoleak type II. The experimental system developed for this study was effective in simulating an endovascular procedure and studying the safety and effectiveness of endovascular devices.
