BMC Cancer

Table 1 Intra-tumor line heterogeneity: PET and IHC parameters and features

From: Systematic analysis of ¹⁸F-FDG PET and metabolism, proliferation and hypoxia markers for classification of head and neck tumors

Parameter	Texture feature	Within line variance
		Total variance
¹⁸ F-FDG PET SUV _max		0.41
¹⁸ F-FDG PET SUV _mean		0.33
¹⁸ F-FDG PET T/M		0.70
¹⁸ F-FDG PET	Entropy	0.39
	Skewness	0.58
PIMO		0.77
	Mean	0.77
	Entropy	0.80
	Skewness	0.82
BrdU		0.78
	Mean	0.52
	Entropy	0.58
	Skewness	0.63
pAKT		0.34
	Mean	0.31
	Entropy	0.36
	Skewness	0.47
EGFR		0.29
	Mean	0.15
	Entropy	0.16
	Skewness	0.67
MCT4		0.12
	Mean	0.23
	Entropy	0.20
	Skewness	0.48
CA9		0.08
	Mean	0.24
	Entropy	0.28
	Skewness	0.71
GLUT1		0.47
	Mean	0.92
	Entropy	0.83
	Skewness	0.92
Vascular density		0.40
Perfusion fraction		0.55

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ISSN: 1471-2407

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