A comparison of the Doppler spectra from human blood and artificial blood used in a flow phantom.
A comparison between the Doppler signals from human blood and artificial blood used in a flow phantom is described. The artificial blood used was a suspension of Sephadex particles in a glycerol solution. The Doppler power was measured as a function of Sephadex concentration and found to peak at a concentration of about 40% by volume. The power from blood was less by a factor of 150-250 than the power from Sephadex of a similar concentration. The first and second order statistics of the Doppler spectra from Sephadex were independent of particle concentration, and were very similar to those of spectra from blood.
Medical Physics and Medical Engineering Department, Royal Infirmary, Edinburgh.
P R
PR
Hoskins
T
T
Loupas
W N
WN
McDicken
D001769:Blood; D001802:Blood Substitutes; D003911:Dextrans; D005990:Glycerol; D006801:Humans; D008955:Models, Cardiovascular; D008961:Models, Structural; D014465:Ultrasonics; D014463:Ultrasonography
D001802:Blood Substitutes; D003911:Dextrans; C025614:sephadex; D005990:Glycerol