aliasing occurs when velocity exceeds Nyquist limit on pulse wave doppler
- related: pulse wave doppler measures location while continuous wave measures speed
- tags: #permanent
- aliasing occurs in pulse wave doppler mode when the velocity of the flow is higher than the Nyquist limit
- In this case, the color can appear to be on opposite side (unexpected color change)1
- e.g. red becomes lighter and lighter until it switches to blue and vice versa