Differentiating Primary Tumors for Brain Metastasis with Integrated Radiomics from Multiple Imaging Modalities

Table 2

List of selected radiomic features from CT and MRI images.

Image modality	Filter	Features	value
CT	Original	firstorder_10Percentile	0.005
	Original	glszm_LowGrayLevelZoneEmphasis	0.016
	Log-sigma-2-0-mm	glrlm_ShortRunEmphasis	0.007
	Log-sigma-3-0-mm	glrlm_ShortRunEmphasis	0.007
	Wavelet-HHL	firstorder_90Percentile	0.034
	Wavelet-HHL	glcm_Imc2	0.006
	Wavelet-HLH	glcm_Contrast	0.008
	Wavelet-LHH	glcm_Contrast	0.003
	Wavelet-LHH	glszm_SizeZoneNonUniformityNormalized	0.029
	Wavelet-LLL	glszm_GrayLevelNonUniformityNormalized	0.018
MRI	Log-sigma-4-0-mm	firstorder_Kurtosis	0.024
	Log-sigma-4-0-mm	glszm_SizeZoneNonUniformityNormalized	0.027
	Log-sigma-5-0-mm	glszm_LargeAreaHighGrayLevelEmphasis	0.032
	Wavelet-HHL	glcm_DifferenceAverage	0.009
	Wavelet-HLH	glszm_SizeZoneNonUniformityNormalized	0.036
	Wavelet-HLL	firstorder_InterquartileRange	0.014