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.
Hoskins
P R
PR
Medical Physics and Medical Engineering Department, Royal Infirmary, Edinburgh.
Loupas
T
T
McDicken
W N
WN
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