Table 2.

Comparison of 30 % CT-based and 30 % PET-based response assessment performed after 3 weeks with the RECIST response assessment of week 6

	RECIST	RECIST	Total
	Responder	Non-responder
CT diameter decrease >30 %	9 (15 %)	2 (3 %)	11 (18 %)
CT diameter decrease <30 %	17 (28 %)	32 (54 %)	49 (82 %)
	26 (43 %)	34 (57 %)	60 (100 %)
	Sensitivity = 35 %	Specificity = 94 %
SUVpeak decrease >30 %	23 (38 %)	21 (35 %)	44 (73 %)
SUVpeak decrease <30 %	3 (5 %)	13 (22 %)	16 (27 %)
	26 (43 %)	34 (57 %)	60 (100 %)
	Sensitivity = 88 %	Specificity = 38 %

SUV standardized uptake value, RECIST response evaluation criteria in solid tumors