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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Doppler Theory (Angle)<br />
It is useful to know the cosine of the basic angles:<br />
y<br />
90°<br />
1<br />
Cosine (0°) = 1<br />
Cosine (30°) = 0.86<br />
Cosine (45°) = 0.707<br />
Cosine (60°) = 0.5<br />
Cosine (90°) = 0<br />
Cosine (180°) = -1<br />
180°<br />
-1 -.75 .-5 -.25 0 .25 .5 .75<br />
-1 -.75 .-5 -.25 0 .25 .5 .75<br />
270°<br />
60°<br />
45°<br />
30°<br />
1<br />
0° = 360°<br />
x