Research on automatic recognition radiomics algorithm for early sacroiliac arthritis based on sacroiliac MRI imaging

Table 1 ICC values for the best features

Group	Radiomics features	Intra-group correlation coefficient ICCs	Inter-groupcorrelation coefficient ICCs
T1WI	T1_exponential_gldm_SmallDependenceLowGrayLevelEmphasis	0.964	0.982
	T1_waveletLLH_gldm_SmallDependenceLowGrayLevelEmphasis	0.923	0.911
	T1_logarithm_gldm_DependenceEntropy	0.901	0.915
	T1_original_shape_Maximum2DDiameterSlice	0.856	0.874
	T1_exponential_glcm_SumAverage	0.861	0.873
	T1_exponential_gldm_DependenceEntropy	0.852	0.861
	T1_waveletLHH_glrlm_ShortRunLowGrayLevelEmphasis	0.894	0.889
	T1_waveletLHL_glrlm_LongRunLowGrayLevelEmphasis	0.876	0.851
T2WI	T2_waveletHHL_glszm_SizeZoneNonUniformityNormalized	0.916	0.907
	T2_waveletHLL_glszm_LargeAreaLowGrayLevelEmphasis	0.878	0.915
	T2_exponential_gldm_DependenceNonUniformityNormalized	0.956	0.971
	T2_exponential_firstorder_Minimum	0.890	0.907
	T2_waveletHHL_glszm_ZoneEntropy	0.856	0.889
	T2_exponential_firstorder_10Percentile	0.905	0.894
	T2_waveletHLH_glcm_Imc2	0.945	0.967
	T2_exponential_glszm_HighGrayLevelZoneEmphasis	0.935	0.928
	T2_waveletHHL_ngtdm_Busyness	0.917	0.872
	T2_gradient_glcm_Correlation	0.982	0.973
	T2_logsigma30mm3D_glcm_Imc2	0.992	0.997

ISSN: 1749-799X