Application of the proximal flow convergence method to calculate the effective regurgitant orifice area in aortic regurgitation.

@article{Tribouilloy1998ApplicationOT,
  title={Application of the proximal flow convergence method to calculate the effective regurgitant orifice area in aortic regurgitation.},
  author={Christophe M. Tribouilloy and Maurice E. Enriquez-Sarano and Sara L Fett and Kent R. Bailey and James B. Seward and A Jamil Tajik},
  journal={Journal of the American College of Cardiology},
  year={1998},
  volume={32 4},
  pages={1032-9}
}
OBJECTIVES We sought to determine the reliability of the proximal isovelocity surface area (PISA) method for calculation of effective regurgitant orifice (ERO) of aortic regurgitation (AR). BACKGROUND The ERO area can be calculated by the PISA method, but this method has not been validated in AR. METHODS ERO calculation by the PISA method was undertaken prospectively in 71 consecutive patients with isolated AR and achieved in 64 and compared with two simultaneous reference methods… CONTINUE READING

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