RT Book, Section A1 Uzunyan, Merujan A1 Miller, Lindsey A2 Siassi, Bijan A2 Noori, Shahab A2 Acherman, Ruben J. A2 Wong, Pierre C. SR Print(0) ID 1161423806 T1 Pulsed Wave, Continuous-Wave, and Color Flow Doppler in Assessment of Regurgitant Flow and Measurement of Pressure Gradients* T2 Practical Neonatal Echocardiography YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781260123135 LK accesspediatrics.mhmedical.com/content.aspx?aid=1161423806 RD 2024/04/23 AB This chapter discusses the use of the Doppler principle and the modified Bernoulli equation for the assessment of gradients and regurgitations caused by stenotic or insufficient valves, as well as the evaluation of physiologic or pathologic communications within the circulatory system. These principles are applied to clinical bedside decision making in the context of neonatal functional echocardiography.