Introduction

Ultrasound blood peak velocity estimates are routinely used for clinical diagnostics, such as the grading of a stenosis. Spectral Doppler velocimetry is a commonly used ultrasound-based technique to perform these measurements. It involves systematic analysis of the spectrum of frequencies that constitute the Doppler signal. Modern ultrasound imaging systems utilize spectral Doppler techniques for quantitative evaluation of blood flow velocities. Internally, the ultrasound system measures the frequency shift induced in the reflected acoustic signal. The \(\)Doppler equation is indicated in \ref{velocity_measurement}.