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. 2021 Jun 7;23(7):958–969. doi: 10.1093/ehjci/jeab065

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Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2021. For permissions, please email: journals.permissions@oup.com.

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RV haemodynamic parameters. (A) Pulmonary artery pressure (PASP) estimated using CW peak TR velocity (TRV, red arrow). (RVSP = 4V²) (PASP = RVSP + RAP). (B) mPAP estimated from pulmonary insufficiency using CW Doppler (CW, yellow arrow) [mPAP = 4V² + RAP]. (C) Pulmonary artery end-diastolic pressure (PAEDP) estimated from pulmonary insufficiency using CW Doppler (green arrow) [PAEDP = 4V² + RAP]. (D) Estimation of pulmonary vascular resistance (PVR) from (D) the peak TRV (blue arrow) and (E) the RVOT velocity time integral (VTI, white trace). (PVR = TRV m/s ÷ RVOT VTI cm × 10 + 0.16). (F) Interventricular septal flattening (orange arrows) correlates with right-sided pressure (systolic) and/or volume (diastolic) overload.