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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The Optimal Frequency for Doppler<br />
Recall the Scattering paradox:<br />
There is a tradeoff between increased reflectivity and increased<br />
absorption with a shorter wavelength from higher frequency operation.<br />
Notice that as the depth increases beyond 3 cm, the transmit frequency<br />
really should be set as low as possible for optimal sensitivity because of<br />
the dominance of absorption.
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