[Peripheral artery blood flow measurements using pulsed Doppler and electromagnetic flowmetry in dogs: a comparative study].
To investigate the accuracy of blood flow parameters in peripheral artery by Doppler ultrasound, the intermal diameter(D), peak velocity(Vp), mean velocity (Vm) and flow volume (Q) of dog's femoral artery were measured by using either a pulsed Doppler (PD) system or electromagnetic flowmeters(EMFM). The results showed that the D measured by B-mode ultrasound values significantly smaller than that by callipers but it correlated very well with the D by callipers. When the values of Vp, Vm and Q measured by pulsed Doppler and EMFM were compared, the Vp had the most highly significant correlation between the data obtained by the two techniques (r: 0.91, 0.79, 0.83 respectively). When Vp, Vm and Q were measured by angle correction of PD, the correlations between the data determined by the two techniques were still significant(r: 0.88, 0.82, 0.78).
Gu
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P
Affiliated Hospital of North Sichuan Medcial College, Nanchong 637000.
Huang
C
C
D000818:Animals; D001783:Blood Flow Velocity; D004285:Dogs; D055590:Electromagnetic Phenomena; D005263:Femoral Artery / Q000000981:diagnostic imaging / Q000502:physiology*; D018617:Ultrasonography, Doppler, Pulsed; D018084:Ultrasonography, Interventional