Skip to main content
. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Cardiol Clin. 2016 Aug;34(3):451–472. doi: 10.1016/j.ccl.2016.04.005

Figure 9.

Figure 9

Tissue Doppler imaging of the right ventricle at the lateral annulus of the tricuspid valve measures the myocardial systolic wave (S’) which measures the systolic longitudinal function of the RV and two diastolic waves: early diastolic (E’) and late diastolic (A’), which denote the diastolic function of the ventricles. Low E’ velocity less than 8 cm/s is predictive of poor outcome in pediatric IPAH.

From Takatsuki S, Nakayama T, Jone PN, et al. Tissue Doppler imaging predicts adverse outcome in children with idiopathic pulmonary arterial hypertension. J Pediatr 2012;161(6):1126–31; with permission.