Table 3.
Correlations between 3-D Echo and CMR measures of RV function and 6MWT and BNP or Nt-proBNP plasma levels in PAH-patients
| CMR/3-D Echo parameters | 6MWTa (r/R2) | BNPb (r/R2) | Nt-proBNPc (r/R2) |
| RV-EF (CMR) | 0.07/0.005 | 0.42/0.17 | 0.42/0.17 |
| RV-ESV/SV (CMR) | 0.07/0.004 | 0.58/0.33 | 0.54/0.29 |
| RV-EF (3-D Echo) | 0.05/0.002 | 0.57/0.33 | 0.51/0.26 |
| RV-ESV/SV (3-D Echo) | 0.04/0.001 | 0.65/0.43 | 0.50/0.25 |
3-D, three-dimensional; 6MWT, 6-min walking test; BNP, B-type natriuretic peptide; CMR, cardiovascular magnetic resonance; EF, ejection fraction; ESV, end-systolic volume; Nt-proBNP, N-terminal pro B-type natriuretic peptide; PAH, pulmonary artery pressure; r, Pearson's correlation index; R2, coefficient of determination; RV, right ventricle; SV, stroke volume.
a
Data are available for 32 patients only.
b
Data are available for 13 patients only.
c
Data are available for 18 patients only.