Distinguishing Lymphomatous and Cancerous Lymph Nodes in 18F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography by Radiomics Analysis

Table 7

Comparison of AUCs for predictive variables in verification set (lines versus columns).

		PREct	PREpet	PREcom	SUVmax
LLN versus; CLN	PREct	N/A	0.09	−0.01	0.29
	PREpet	−0.09	N/A	−0.08	0.2
	PREcom	0.01	0.08	N/A	0.28
	SUVmax	−0.29	−0.20	−0.28	N/A
HLLN versus; CLN	PREct	N/A	0.07	−0.07	0.18
	PREpet	−0.07	N/A	−0.09	0.11
	PREcom	0.07	0.09	N/A	0.20
	SUVmax	−0.18	−0.11	−0.20	N/A
NHLLN versus; CLN	PREct	N/A	0.04	−0.07	0.14
	PREpet	−0.04	N/A	−0.04	0.18
	PREcom	0.07	0.04	N/A	0.21
	SUVmax	−0.14	−0.18	−0.21	N/A
HLLN versus; NHLLN	PREct	N/A	0.03	−0.04	0.18
	PREpet	−0.03	N/A	−0.06	0.15
	PREcom	0.04	0.06	N/A	0.21
	SUVmax	−0.18	−0.15	−0.21	N/A

, ; , ; , . Abbreviations: PREcom, PREcombination; AUC, area under the ROC curve; ROC, receiver operating characteristics; SUV, standardized uptake value; LLN, lymphomatous-lymph nodes; CLN, cancerous-lymph nodes; N/A, not applicable; HLLN, LLN caused by Hodgkin’s lymphoma; NHLLN, LLN caused by non-Hodgkin lymphoma; PREct, CT-predictive variables; PREpet, PET-predictive variables, PREcombination, the combination of PET and CT predictive variables.