Page 174 - Feline diagnostic imaging
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Figure 10.39 Pulsed-wave Doppler image of the mitral valve when the heart rate slows; the mitral valve waveform is biphasic.
The sharp line below baseline (arroe) is valve closure.
Figure 10.40 Pulsed-wave Doppler image of the tricuspid valve shows biphasic flow above the baseline. The amplitude of the
tricuspid flow is normally lower than the mitral valve.