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Comprehensive Textbook of Echocardiography
by Navin C NandaThree-dimensional (3D) color Doppler transthoracic echocardiographic technique for the assessment of aortic regurgitation (AR) vena contracta. The 3D color Doppler data set showing AR is cropped using an oblique plane to the level of the vena contracta and tilted to view it en face. The vena contracta is then planimetered. (AO: aorta; LA: left atrium; LV: left ventricle; RV: right ventricle). Source: Reproduced with permission from Fang L, Hsiung MC, Miller AP, et al. Assessment of aortic regurgitation by live three-dimensional transthoracic echocardiographic measurements of vena contracta area: usefulness and validation. Echocardiography. 2005;22:775–81.
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