Scattering of ultrasound by biological tissues (continuous-inhomogeneous media) is discussed. An analytical expression for the attenuation due to scattering (αSC T) and backscatter coefficients (σT) of tissues are obtained. The results explain the variation of αSC T and σT with frequency for a number of tissues. The study also provides two statistical parameters, velocity fluctuation coefficient and correlation length, in terms of which the scattering of tissues can be defined quantitatively.
- tissue characterization
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Acoustics and Ultrasonics