Table 1

 In vivo haemodynamic data obtained by thermodilution and magnetic resonance imaging (MRI)

ThermodilutionMRI
Mean (SD)Variability (%)Mean (SD)Variability (%)
Data are the mean (SD) of three repeated measurements. Inter-examination variability was determined from three repeated measurements.
PA, pulmonary artery.
PA flow volume (l/min/m2)3.3 (0.8)7.8 (3.1)2.8 (0.3)2.4 (0.5)
Mean PA pressure (mm Hg)12.1 (2.7)1.4 (0.5)13.3 (3.2)1.6 (0.6)
PA resistance (Wood units·m2)0.9 (0.5)6.2 (2.2)1.1 (0.3)2.1 (0.3)