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Table 4 Transpulmonary thermodilution mathematical model parameters

From: Validation of transpulmonary thermodilution variables in hemodynamically stable patients with heart diseases

 

Control

n = 11

AS

n = 10

DCM

n = 8

p

Mean transit time (MTt) [s]

442.9 ± 91.0

497.9 ± 88.7

570.8 ± 199.2

0.12

Exponential downslope time (DSt) [s]

173.1 ± 41.1

211.2 ± 47.2

246.0 ± 107.0

0.08

Thermal indicator volumetric parameters

 Intrathoracic thermovolume (ITTV) [ml]

2439 ± 470

2759 ± 662

2744 ± 754

0.43

 Pulmonary thermovolume (PTV) [ml]

956 ± 230

1176 ± 355

1159 ± 320

0.20

Estimated dye indicator volumetric parameters

 Intrathoracic blood volume (ITBV) [ml]

1854 ± 327

1979 ± 441

1982 ± 594

0.77

 Pulmonary blood volume (PBV) [ml]

371 ± 65

396 ± 88

396 ± 119

0.77

  1. Values are given as mean ± SD
  2. AS aortic valve stenosis, DCM dilated cardiomyopathy