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Table 2 Differences between contraction period measured with diaphragmatic length (DL) and contraction period measured with thoracic motion (TM), respiratory airflow (FL) and transdiaphragmatic pressure (DP).

From: Non-Invasive monitoring of diaphragmatic timing by means of surface contact sensors: An experimental study in dogs

 

DL vs. TM

DL vs. FL

DL vs. DP

 

MEAN (s)

SD(s)

MEAN - 2SD (s)

MEAN + 2SD (s)

MEAN (s)

SD(s)

MEAN - 2SD (s)

MEAN + 2SD (s)

MEAN (s)

SD(s)

MEAN - 2SD (s)

MEAN + 2SD (s)

Dog 1 (SVN)

0.15

0.05

0.05

0.26

-0.25

0.08

-0.39

-0.01

-0.19

0.07

-0.32

-0.05

Dog 2 (SVN)

0.03

0.03

-0.02

0.09

-0.00

0.04

-0.09

0.08

0.01

0.03

-0.05

0.06

Dog 3 (SVN)

0.04

0.03

-0.01

0.10

0.03

0.04

-0.05

0.11

-0.00

0.04

-0.07

0.07

Dog 1 (SVW)

-0.00

0.03

-0.05

0.06

0.02

0.03

-0.04

0.08

0.02

0.04

-0.05

0.10

Dog 2 (SVW)

0.03

0.03

-0.03

0.08

-0.04

0.04

-0.12

0.04

-0.02

0.02

-0.06

0.02

Dog 3 (SVW)

-0.03

0.02

-0.08

0.02

-0.00

0.03

-0.06

0.05

-0.02

0.05

-0.11

0.08

Dog 1 (ILW)

0.09

0.02

-0.04

0.13

0.02

0.02

-0.02

0.06

0.03

0.02

-0.00

0.07

Dog 2 (ILW)

0.04

0.02

-0.00

0.08

-0.01

0.05

-0.10

0.08

0.01

0.02

-0.02

0.04

Dog 3 (ILW)

-0.01

0.02

-0.04

0.02

-0.01

0.02

-0.04

0.03

0.04

0.02

-0.00

0.08

  1. MEAN: Mean difference; SD: standard deviation; MEAN ± 2SD: limits of agreement of the Blond and Altman analysis; SVN: spontaneous ventilation without anaesthesia respiratory test, SVW: spontaneous ventilation with anaesthesia respiratory test; ILW: inspiratory load with anaesthesia respiratory test.