Objective:To evaluate the influence of aortic valvular regurgitation(AR) on aortic remodeling.
目的：探讨主动脉瓣返流对胸主动脉结构与功能的影响。
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Objective To evaluate the feasibility and accuracy of color M-mode Doppler flow propagation velocity (FPV) in assessment of the severity of aorticregurgitation (AR).