Basic study of non-invasive examination for postoperative endoleak

波强度改变的不是动脉壁的性质，而是动脉壁的压力。本研究的目的是阐明支架植入前后波强度的变化。采用超声装置（prosoundα7， ALOKA, Tokyo）测量循环模拟、猪和临床病例的波强度。在每三个组中，第一波和第二波没有明显变化。在支架置放前后，所有组中许多病例的难治性波极点发生变化。在循环模拟中发现了内渗引起的耐火波变化。在本研究中，明确了超声波强度对动脉瘤诊断的可能性，包括修复后的内漏。期望有更合适的仪器来测量波的强度。

Wave intensity change not arterial wall character, but the pressure of the arterial wall. The purpose of this present study is to clarify the change of the wave intensity between pre-, post-stentgraft deployments. The wave intensity of the circulation mock, pig, and clinical cases was measured by an ultrasound device(prosoundα7, ALOKA, Tokyo). In every three group, wave I and II did not change significantly. At pre-and post stentgraft deployment, the pole of refractory wave change in many cases of all groups. The refractory wave change by endoleak was found at the circulation mock. In this present study, the possibility of wave intensity was clarified for the aneurysm diagnosis, including the post-repair endoleak. More suitable device will be expected to measure the wave intensity.