Pulsed Wave Doppler
Advantage: Range Specificity
Disadvangtage: Aliasing
Continuous Wave Doppler
Advantage: Sample high velocities, no aliasing
Disadvantage: Range ambiguity
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiocXRbGhcr61LkmG7ORtqQuS9EZQP6nXYRk3URVZkd92sxjO3lDp3NiTCg1T2P5S4bOxr3h-goCBCm_ojxnLfGqgB7GQcLNV5J4WN7mQeylg0X7hwNuof_TzcPEeAcYZc_4rEh-vNbs-U/s320/color_doppler.jpg)
Color Doppler
Advantage: Determine direction of blood flow
Disadvantage: Aliasing
Power Doppler
Advantage: Sensitive to low velocitites
Disadvantage: Does not determine direction of blood flow
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