Table 1.

The lung radiomics features of the four groups A–D selected by the Lasso model, respectively.

Lung radiomics features selected by Lasso	Type of images	Class	Group A	Group B	Group C	Group D
original_shape_Elongation	Original images	SHAPE features	√	√		√
original_shape_Maximum2DDiameterRow		SHAPE features	√	√	√	√
original_shape_Maximum2DDiameterSlice		SHAPE features			√
original_shape_Sphericity		SHAPE features				√
original_shape_SurfaceVolumeRatio		SHAPE features	√	√
original_firstorder_10Percentile		FIRST features				√
original_glszm_GrayLevelNonUniformityNormalized		GLSZM features			√
original_glszm_ZoneEntropy		GLSZM features	√		√	√
log.sigma.1.0.mm.3D_firstorder_Maximum	Derived images generated from LoG filter	FIRST features			√	√
log.sigma.1.0.mm.3D_glcm_ClusterProminence		GLCM features			√	√
log.sigma.1.0.mm.3D_glrlm_GrayLevelVariance		GLRLM features			√
log.sigma.1.0.mm.3D_glszm_SmallAreaEmphasis		GLSZM features			√
log.sigma.1.0.mm.3D_glszm_ZoneEntropy		GLSZM features				√
log.sigma.2.0.mm.3D_firstorder_Maximum		FIRST features				√
log.sigma.2.0.mm.3D_glszm_SmallAreaLowGrayLevelEmphasis		GLSZM features			√
log.sigma.2.0.mm.3D_ngtdm_Contrast		NGTDM features	√		√
log.sigma.2.0.mm.3D_gldm_SmallDependenceLowGrayLevelEmphasis		GLDM features			√
log.sigma.2.0.mm.3D_gldm_DependenceVariance		GLDM features				√
log.sigma.3.0.mm.3D_firstorder_10Percentile		FIRST features				√
log.sigma.5.0.mm.3D_firstorder_10Percentile		FIRST features	√		√	√
log.sigma.5.0.mm.3D_firstorder_TotalEnergy		FIRST features	√
log.sigma.5.0.mm.3D_glrlm_RunLengthNonUniformity		GLRLM features		√
log.sigma.5.0.mm.3D_glszm_SmallAreaEmphasis		GLSZM features			√
wavelet.LLH_glcm_ClusterTendency	Derived images generated from wavelet filter	GLCM features	√
wavelet.LLH_glszm_GrayLevelNonUniformityNormalized		GLSZM Features	√
wavelet.LLH_glszm_LargeAreaLowGrayLevelEmphasis		GLSZM features		√
wavelet.LLH_glrlm_GrayLevelNonUniformityNormalized		GLRLM features		√
wavelet.LLH_firstorder_Mean		FIRST features			√
wavelet.LLH_firstorder_RootMeanSquared		FIRST features			√
wavelet.LHL_gldm_SmallDependenceLowGrayLevelEmphasis		GLDM features	√
wavelet.LHL_firstorder_Kurtosis		FIRST features		√	√	√
wavelet.HLH_glrlm_ShortRunLowGrayLevelEmphasis		GLRLM features				√
wavelet.LLL_firstorder_10Percentile		FIRST features	√	√	√
wavelet.LLL_firstorder_Minimum		FIRST features	√	√
wavelet.LLL_firstorder_TotalEnergy		FIRST features		√
wavelet.LLL_glcm_Imc2		GLCM features	√		√	√