2007•Piezoelectrics and AcoustoopticsRequires access
A Study on Ultrasonic Attenuation Characteristic of Fat-muscular Tissue
Yan Bi-ge
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Abstract
Based on the principle of ultrasonic pulse-echo method,this article studies ultrasonic velocity and its attenuation rule in fat-muscular combo when ultrasonic propagates along different direction of fiber.Attenuation coefficient and velocity of ultrasonic are got in human body tissue.The result indicates that there appears some difference to attenuation coefficient and ultrasonic velocity when ultrasonic propagates along different direction of fiber.Ultrasonic velocity of along fiber is a little bigger than that of across fiber,but attenuation coefficient of across fiber is obviously bigger than that of along fiber.The study shows that attenuation coefficient and ultrasonic velocity vary with water content,which offers experiment basis for enhancing identification ability of tissue structure,researching change of structure and state of superficial soft tissue and its application in clinic.