Ultrasonic Backscattering by Blood
Since the sensitivity and lateral resolution of ultrasonic pulse Doppler methods are restricted, continuous wave Doppler methods are introduced for examinations of relatively small vessels in the peripheral blood circulations. There are difficulties in the measuring of quantitative blood flow volume because an exact knowledge is necessary of the ultrasound scattering in blood by using continuous waves. Also, for the estimation of the mean velocity, it is necessary to know the distribution of frequency-dependent scattering from the velocity profile of blood flow.
KeywordsScattered Wave Rigid Sphere High Cell Concentration Doppler Method Isotropic Scattering
Unable to display preview. Download preview PDF.
- 1.J.M. Reid, R.A. Sigelman, M.B. Nasser and D.W. Baker, The scattering of ultrasound by human blood, in Proceedings of 8th I.C.M.B.E. (1978).Google Scholar
- 2.Lord Rayleigh, “Theory of Sound”, Dover, New York (1945).Google Scholar
- 3.K.K. Shung, R.A. Sigelman and J.M. Reid, The scattering of ultrasound by red blood cells, Appl. Radiol. 77 (1976).Google Scholar
- 4.P.M. Morse and K.U. Ingard, “Theoretical Acoustics”, McGraw Hill, New York (1968).Google Scholar
- 6.V.P. Glotov, Coherent scattering of plane and spherical waves in deep water layers containing discrete inhomogeneities, Sov. Phys. Doklady 1: 211 (1962).Google Scholar