Abstract
(1) The forward triangle method vs. the semilogarithmic method showed the regression equation of Y=0.211X-171(mm2) (r=0.897).
(2) The integral method vs. the semilogarithmic method showed the regression equation of Y=1.021X-104 (r=0.994).
(3) The tangential method vs. the semilogarithmic method showed the regression equation of Y=1.006X-210 (r=0.992).
These data showed that these 3 methods for the rapid estimation of the area under the thermodilution curve were applicable practically, with the reasonable accuracy, the simplicity and the cost.
