![A real-time 3-dimensional digital Doppler method for measurement of flow rate and volume through mitral valve in children: A validation study compared with magnetic resonance imaging]()
A real-time 3-dimensional digital Doppler method for measurement of flow rate and volume through mitral valve in children: A validation study compared with magnetic resonance imagingGe, Shuping; Bu, Liping; Zhang, Honghai; Schelbert, Erik; Disterhoft, Michelle; Li, Xiangning; Li, Xiaokui; Sahn, David; Stolpen, Alan; Sonka, Milan · 2005