Estimation of mechanical strength of in vivo common carotid artery using ultrasound echo images
The purpose of this study is to establish noninvasive technique for estimating mechanical properties of in vivo human artery.The technique is based on the in vivo stiffness (Eth)that is calculated from the dynamic changes in the diameter of the common carotid artery and the blood pressures (upper and lower),which means rigidity of the vessel wall due to internal pressure.The diameter changes were measured automatically using ultrasound echo images and a software newly developed.It was then found a good relation between in vivo Eth (a tube model) and mechanical tensile Eth ( a plate model) based on the results of bust testing and tensile testing.Thus,it has been established a new procedure to estimate bust pressure of carotid artery from ultrasound image and blood pressure.The total inspection time for both side of the common carotid arteries is within 300 seconds.The result indicates that the in vivo Eth and the estimated bust pressure are useful symptom indices for carotid arteriosclerosis,especially for finding the beginning sclerosis that would start early twenties.We expect that it would be one of regular health examination items.
arteriosclerosis carotid artery image analysis in vivo mechanical property ultrasound
Fumio Nogata Yasunari Yokota Yoko Kawamura Hiroyuki Morita Yoshiyuki Uno
Department of Human and Information Systems Engineering,Gifu University,Gifu 501-1112,Japan Medical School,Gifu University,Gifu 501-1112,Japan
国际会议
哈尔滨
英文
249-252
2008-01-13（万方平台首次上网日期，不代表论文的发表时间）