Comparison of Pulmonary Artery Pressure Measurement With Doppler Echocardiography or With Right Heart Catheterization in Patients With Congenital Heart Disease

Figures

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  Figure 1. Relationship between RVSP estimated by D-ECHO and sPAP observed by RHC (r = 0.219, p < 0.01). Echo, measured by Doppler echocardiographic; invas, invasive measurement by right-heart catheterization; r, correlation coefficient (Pearson); sPAP, systolic pulmonary artery pressure; RVSP, right ventricular systolic pressure.

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  Figure 2. Bland-Altman plot of sPAP estimated by Doppler echocardiographic and RHC. The bias was 6.6 mmHg and the 95% limits of agreement were 23.6–36.8 mmHg. Dotted line, bias; solidline curve, upper and lower limits of agreement. D-ECHO, Doppler echocardiography; sPAP, pulmonary artery systolic pressure; RHC, right-heart catheterization.

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  Figure 3. Accuracy of sPAP estimated by D-ECHO in 301 children with CHD. (A) A total of 57.5% of D-ECHO estimates were found to be accurate, 31.2% of D-ECHO estimates were found to be underestimated, 11.3% of D-ECHO estimates were found to be overestimated. (B) In patients with underestimated pressure, it was found that PDA accounted for 65.9%, ASD accounted for 21.3%, and VSD accounted for 12.8%. (C) In patients with overestimated pressure, it was found that PDA accounted for 5.9%, ASD accounted for 50.0%, and VSD accounted for 44.1%.

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  Figure 4. Comparison of RAP as estimated by D-ECHO and RHC. Echo, measured by Doppler echocardiographic; invas, invasive measurement by RHC; RAP, right atrial pressure.