Vascular elastic modulus measuring method, vascular elastic modulus calculating apparatus, and ultrasonic diagnostic apparatus

摘要

PROBLEM TO BE SOLVED: To provide a vascular elasticity rate measuring method which measures a vascular elasticity rate easily with a sphygmomanometer and an ultrasonic diagnostic device and is capable of measuring a vascular elasticity rate more reliably than a conventional one. SOLUTION: A first blood pressure pi1, a blood vessel inner side radius a1 and a blood vessel outer side radius b1 are measured and a second blood pressure pi2, a blood vessel inner side radius a2 and a blood vessel outer side radius b2 are measured. Then, the vascular elasticity rate is obtained by E=[pi2 2a22/(b22-a22)}-pi1 2a12/(b12-a12)}]/ (b2-b1}/(b2+b1)}. Consequently, the vascular elasticity rate more reliable than the conventional one is measured easily.