Implementation of a Pulsed-Wave Spectral Doppler Module on a Programmable Ultrasound System 2018Abu-Bakr M.A.Confrence PaperElnokrashy A.F.Hendy A.M.Kadah Y.M.Madian A.H.Radwan A.G. Pulsed wave Doppler ultrasound is commonly used in the diagnosis of cardiovascular and blood flow abnormalities