Aliasing on a Doppler waveform, a consequence of the Doppler frequency being greater than having the pulse repetition frequency. Source: Chapter 2. Instrumentation, Scanning Techniques, and Artifacts, Surgical and Interventional Ultrasound Citation: Schrope B. Surgical and Interventional Ultrasound; 2014 Available at: https://accesssurgery.mhmedical.com/DownloadImage.aspx?image=/data/Books/schr1/schr1_c002f009.png&sec=45954905&BookID=698&ChapterSecID=45954782&imagename= Accessed: December 16, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved