The severerity of tricuspid regurgitation can be gauged by the ratio of the regurgitation jet area to the area of the right atrium seen on echocardiography.


Patient selection: tricuspid regurgitation


Examination: apical 4-chamber view, with calculations performed by computerized planimetry



(1) maximal regurgitant jet area in the echocardiogram

(2) right atrium area in the echocardiogram


ratio of regurgitant to right atrial area =

= (area of maximal regurgitant jet) / (area of the right atrium)



• The mean ratio in normal subjects was 0.04 +/- 0.05


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