Concordance of FDG PET/CT metabolic tumour volume versus DW-MRI functional tumour volume with T2-weighted anatomical tumour volume in cervical cancer

Table 4 Correlation of MTVs at all SUVmax thresholds were significantly correlated with T2W anatomical volume and with DW-MRI functional volume (p < 0.05)

	Pearson’s product-moment correlation (r)	p value
ATV	1.000
FTV_(manual)	0.963	<0.001
FTV_{(semi-automated)}	0.956	<0.001
PET MTV₂₀	0.955	<0.001
PET MTV₂₅	0.962	<0.001
PET MTV₃₀	0.968	<0.001
PET MTV₃₅	0.975	<0.001
PET MTV₄₀	0.968	<0.001
PET MTV₄₅	0.948	<0.001
PET MTV₅₀	0.921	<0.001
PET MTV₅₅	0.877	<0.001
PET MTV₆₀	0.830	<0.001
PET MTV₆₅	0.803	<0.001
PET MTV₇₀	0.777	<0.001
PET MTV₇₅	0.777	<0.001
PET MTV₈₀	0.781	<0.001

Pearson correlation coefficient (r) larger than 0.9 are highlighted in bold. ATV: anatomical tumour volume; FTV: functional tumour volume; MTV: metabolic tumour volume

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