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Table 2 Pearson r correlations between ESI scores and functional and radiological data

From: Spirometric assessment of emphysema presence and severity as measured by quantitative CT and CT-based radiomics in COPD

 

ESI

r

p

%LAA-950insp

0.81

<.01

%LAA-856exp

0.74

<.01

%fLDA

0.46

<.01

%pLDA

0.80

<.01

AWTPi10

0.13

.09

FEV1 (%pred.)

−0.74

<.01

FVC (%pred)

− 0.30

<.01

FEV1/FVC (%)

−0.87

<.01

FRC (% pred)

0.69

<.01

RV (% pred)

0.65

<.01

TLC (% pred)

0.37

<.01

DLco (% pred)

−0.56

<.01

  1. Legend: AWTPi10 airway wall thickness at an internal perimeter of 10 mm, DLco diffusing lung capacity for carbon monoxide, FEV1 forced expiratory volume in 1 s, %fLDA percentage of functional low density area, FRC forced respiratory capacity, FVC forced vital capacity, %LAA-950insp percentage of lung attenuation area with values <− 950 Hounsfield Units at inspiratory CT scan, %LAA-856exp percentage of lung attenuation area with values <− 856 Hounsfield Units at expiratory CT scan, %pLDA percentage of persistent low density area, %pred percentage of predicted, RV residual volume, TLC total lung capacity
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Respiratory Research

ISSN: 1465-993X

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