RPVI Exam Vascular Physics Case Review.pdf - VascularWeb
RPVI Exam Vascular Physics Case Review.pdf - VascularWeb
RPVI Exam Vascular Physics Case Review.pdf - VascularWeb
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Nyquist and Doppler<br />
f<br />
Dop<br />
Dop (max) PRF<br />
f =<br />
2<br />
=<br />
⇒<br />
⇒<br />
⇒<br />
2 fv∗<br />
cos<br />
o<br />
( θ )<br />
c<br />
Higher opertaing frequency<br />
Higher velocity<br />
Angles closer to<br />
<br />
0 or 180<br />
<br />
PRF<br />
1 1<br />
= =<br />
PRP ID( cm) ∗13μ<br />
sec<br />
⇒ Increasing Doppler Gate Depth