Dependence of the ultrasonic scatter coefficient on collagen concentration in mammalian tissues

Abstract

The difference between values of ultrasonic attenuation and absorption coefficients, defined as the scatter coefficient, was related to percent wet wt collagen concentration for brain, heart, liver, kidney and tendon in the range of 0.7-7 MHz. As the ultrasonic frequency increased, the scatter coefficient increased and the dependence of scattering upon collagen concentration decreased.