超声多普勒血流测量的误差及其仿真研究  

The Combined Error Doppler Ultrasound for Blood Flow Velocity Measurement and Its Simulation

作　　者：余建国[1] 余殷雷[1] 王威琪[1] 

机构地区：[1]复旦大学电子工程系,上海200433

出　　处：《复旦学报（自然科学版）》1998年第6期748-752,共5页Journal of Fudan University：Natural Science

基　　金：国家自然科学基金;国家教委高等院校博士点专项科研基金

摘　　要：首次讨论了声折射和使用仪器引起的测量误差．仿真研究表明，血流测量与首层组织的声速和操作者所采取的角度有关，从而得出使测量误差最小的最佳角度．最佳角度与目前实用的测量角度一致．The error of blood flow velocity measurement introduced by ultrasonic refraction and user operation has been investigated. Computer simulation shows that the error in the blood flow velocity measured by ultrasound is related to the propagation of ultrasound in the first tissue layer and the measurement angle adopted by the user as well. The optimum measurement angle is derived in this paper, which is in good agreement with practice in present clinic.

关 键 词：超声我普勒 声折射 误差 血流测量 仿真 

分 类 号：R318.01[医药卫生—生物医学工程] R445.1[医药卫生—基础医学]