Measurements of Pre-and Postoperative Tricuspid Regurgltation by Color Doppler Flow Imaging

The tricuspid regurgitation(TR)of 122 patients with rheumatic heart valvular diseases,whose mitral and/or aortic valve replacements and tricuspid annuloplasty were performed,were mea-sured by color Doppler flow imaging(CDFI)before and after operation.By comparing and analysing re-lationship between the instantaneous areas of TR(TR-IA)during systole and stroke volume of TR(TR-SV)calculated with color Doppler frequency spectra,we found that when the TR-IA was 10 cm2,the TR-SV was 0.81±0.23 ml,3.68±1.19 ml,8.67±3.06 ml,30.47±14.32 ml,respectively.This study suggested that CDFI examination is a noninvasive high-sensi-tive and specific method for diagnosis of TR. Key words: CDFI; TR; tricuspid annuloplalsty