TY - JOUR
T1 - Right ventricular time intervals – Comparison between pulsed wave Doppler and tissue Doppler imaging
AU - Dammassa, Valentino
AU - Colombo, Costanza Natalia Julia
AU - Greco, Alessandra
AU - Guida, Stefania
AU - Boffi, Andrea
AU - Mojoli, Francesco
AU - Ghio, Stefano
AU - Price, Susanna
AU - Tavazzi, Guido
N1 - Publisher Copyright:
© 2021 Wiley Periodicals LLC
PY - 2021
Y1 - 2021
N2 - Background: Cardiac time intervals are used as indices of systolic and diastolic function. Echocardiographic assessment of these intervals is based on either pulsed wave Doppler (PWD) or tissue Doppler imaging (TDI). We investigated the agreement between the two techniques in the evaluation of right ventricular (RV) time intervals in healthy adults. Methods: In 123 healthy volunteers we used both PWD and TDI to assess RV time intervals (filling time – RVFT, ejection time – RVET), heart rate-corrected intervals (total filling time – t-FT, total ejection time – t-ET) and RV performance indices (total isovolumic time – t-IVT, myocardial performance index – MPI). Intraclass correlation coefficient (ICC) and Pearson analysis (r coefficient) were used to evaluate the agreement and correlation between the two techniques. Results: PWD and TDI had excellent agreement and correlation in measuring RVFT (ICC 0.94 [95% CI 0.85 – 0.97], r 0.91) whereas a good agreement was found for RVET (ICC 0.63[95% CI - 0.14 – 0.84]; r 0.68). Good agreement and strong correlation were found for both t-FT (ICC 0.67 [95% CI 0.36 – 0.82]; r 0.59) and t-ET (ICC 0.71 [95% CI - 0.06–0.88]; r 0.74). The two methods had lower agreement in assessing RV t-IVT (ICC 0.52 [95% CI 0.3187–0.6622]; r 0.57) and MPI (ICC 0.36 [95% CI – 0.05–0.43]; r 0.50). Conclusion: In healthy adults, PWD and TDI are interchangeable in measuring RVFT, RVET, RV t-FT and RV t-ET. Lower agreement between the two techniques was found for RV t-IVT and MPI.
AB - Background: Cardiac time intervals are used as indices of systolic and diastolic function. Echocardiographic assessment of these intervals is based on either pulsed wave Doppler (PWD) or tissue Doppler imaging (TDI). We investigated the agreement between the two techniques in the evaluation of right ventricular (RV) time intervals in healthy adults. Methods: In 123 healthy volunteers we used both PWD and TDI to assess RV time intervals (filling time – RVFT, ejection time – RVET), heart rate-corrected intervals (total filling time – t-FT, total ejection time – t-ET) and RV performance indices (total isovolumic time – t-IVT, myocardial performance index – MPI). Intraclass correlation coefficient (ICC) and Pearson analysis (r coefficient) were used to evaluate the agreement and correlation between the two techniques. Results: PWD and TDI had excellent agreement and correlation in measuring RVFT (ICC 0.94 [95% CI 0.85 – 0.97], r 0.91) whereas a good agreement was found for RVET (ICC 0.63[95% CI - 0.14 – 0.84]; r 0.68). Good agreement and strong correlation were found for both t-FT (ICC 0.67 [95% CI 0.36 – 0.82]; r 0.59) and t-ET (ICC 0.71 [95% CI - 0.06–0.88]; r 0.74). The two methods had lower agreement in assessing RV t-IVT (ICC 0.52 [95% CI 0.3187–0.6622]; r 0.57) and MPI (ICC 0.36 [95% CI – 0.05–0.43]; r 0.50). Conclusion: In healthy adults, PWD and TDI are interchangeable in measuring RVFT, RVET, RV t-FT and RV t-ET. Lower agreement between the two techniques was found for RV t-IVT and MPI.
KW - Doppler echocardiography
KW - myocardial performance index
KW - right ventricular cardiac time intervals
KW - tissue Doppler imaging
KW - total isovolumic time
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U2 - 10.1111/echo.15209
DO - 10.1111/echo.15209
M3 - Article
AN - SCOPUS:85115287012
JO - Echocardiography
JF - Echocardiography
SN - 0742-2822
ER -