| 摘要 |
PROBLEM TO BE SOLVED: To provide a blood dynamic characteristic measuring apparatus for measuring viscosity coefficient distribution and shearing stress distribution. SOLUTION: This blood dynamic characteristic measuring apparatus includes: a means 4 for percutaneously entering wave motion such as an ultrasonic wave toward a blood flow in a blood vessel, receiving a scattered echo from blood cell components contained in blood in the blood vessel and thereafter measuring a blood flow velocity distribution by ultrasonic Doppler measurement; means 5 and 6 for finding the viscosity coefficient distribution of the blood and/or a viscosity coefficient distribution average value of the blood by a two-dimensional or three-dimensional Navier-Stokes equations on the basis of the blood flow velocity distribution; a shear rate distribution calculation means 7 for calculating a shear rate distribution from the measured blood flow velocity distribution; and a means 9 for finding the shear stress distribution in the blood on the basis of the calculated shear rate distribution and the viscosity coefficient distribution of the blood or the viscosity coefficient distribution average value of the blood. COPYRIGHT: (C)2010,JPO&INPIT |
