Womersley Number-Based Estimates of Blood Flow Rate in Doppler Analysis: In Vivo Validation by Means of Phase-Contrast MRI. - Raffaele Ponzini; Christian Vergara; Giovanna Rizzo; Alessandro Veneziani; Alberto Roghi; Angelo Vanzulli; Oberdan Parodi; Alberto Redaelli (IEEE Trans. Biomed. Eng., 2010)