Table 1 Values of exponent n calculated by fitting the expression \(S = kV^{n}\), to the changes in acinar surface area (S) and volume (V) during a positive pressure inspiration from 6 to 12 cmH2O.

From: Lung tissue biomechanics imaged with synchrotron phase contrast microtomography in live rats

Rat

ROIa

n

R7

1

0.85

R7

2

0.82

R7

3

0.85

R7

4

0.81

R7

5

0.80

R8

1

0.80

R8

2

0.76

R8

3

0.84

R9

1

0.87

R9

2

0.84

R9

3

0.81

R9

4

0.84

m ± SD

 

0.82 ± 0.03

  1. aRegion of interest.