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Table 3 Regional volume expansion ratio and air volume change in prone versus supine positions

From: Quantitative CT-based image registration metrics provide different ventilation and lung motion patterns in prone and supine positions in healthy subjects

Variable

Region

Prone

Supine

P value

J

LUL

1.613

1.551

0.301

 

LLL

1.600

1.809

0.001

 

RUL

1.598

1.552

0.448

 

RML

1.567

1.447

0.025

 

RLL

1.597

1.797

0.002

RRAVC

LUL

1.040

0.891

7.6 × 10−7

 

LLL

1.069

1.270

4.8 × 10− 7

 

RUL

1.012

0.890

6.4 × 10−4

 

RML

1.049

0.713

4.4 × 10−19

 

RLL

1.058

1.279

7.2 × 10−4

  1. All values are expressed as means. J Jacobian, LLL Left lower lobe, LUL Left upper lobe, RLL Right lower lobe, RML Right middle lobe, RRAVC Relative regional air volume change, RUL Right upper lobe