TY - JOUR
T1 - Rapid estimation of regurgitant volume by the proximal isovelocity surface area method in mitral regurgitation
T2 - Can continuous-wave doppler echocardiography be omitted?
AU - Rossi, A.
AU - Dujardin, K. S.
AU - Bailey, K. R.
AU - Seward, J. B.
AU - Enriquez-Sarano, M.
PY - 1998
Y1 - 1998
N2 - The proximal isovelocity surface area (PISA) method is accurate for quantitating mitral regurgitation but requires recording both mitral maximal and integrated jet velocities using the same continuous-wave Doppler jet signal. In 272 consecutive patients with isolated mitral regurgitation, the mean ratio of maximal to integral of velocity had a narrow range of variation (mean ± SD, 3.25 ± 0.47). The estimated regurgitant volume, calculated as regurgitant flow/3.25, showed an excellent correlation with reference regurgitant volumes (r = 0.96 and r = 0.97; standard error of the estimate, 11 ml; both p < 0.0001), with limited overestimation and high sensitivity and specificity for severe mitral regurgitation. The estimated regurgitant volume is a useful measurement in patients in whom the continuous-wave Doppler signal of mitral regurgitation cannot be obtained.
AB - The proximal isovelocity surface area (PISA) method is accurate for quantitating mitral regurgitation but requires recording both mitral maximal and integrated jet velocities using the same continuous-wave Doppler jet signal. In 272 consecutive patients with isolated mitral regurgitation, the mean ratio of maximal to integral of velocity had a narrow range of variation (mean ± SD, 3.25 ± 0.47). The estimated regurgitant volume, calculated as regurgitant flow/3.25, showed an excellent correlation with reference regurgitant volumes (r = 0.96 and r = 0.97; standard error of the estimate, 11 ml; both p < 0.0001), with limited overestimation and high sensitivity and specificity for severe mitral regurgitation. The estimated regurgitant volume is a useful measurement in patients in whom the continuous-wave Doppler signal of mitral regurgitation cannot be obtained.
UR - http://www.scopus.com/inward/record.url?scp=0031898050&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031898050&partnerID=8YFLogxK
U2 - 10.1016/S0894-7317(98)70072-0
DO - 10.1016/S0894-7317(98)70072-0
M3 - Article
C2 - 9517553
AN - SCOPUS:0031898050
SN - 0894-7317
VL - 11
SP - 138
EP - 148
JO - Journal of the American Society of Echocardiography
JF - Journal of the American Society of Echocardiography
IS - 2
ER -