TABLE 1

Site-Based Analysis of Changes in Image Interpretation After PET/CT

Criteria	Head and neck	Chest	Abdominopelvic	Soft tissue and bone	Total
Precise lesion characterization and localization on PET after PET/CT
As benign	2	34	16	8	60
As malignant	5	10	14	2	31
Precise localization of malignant lesion	—	12	17	8	37
Retrospective lesion detection after PET/CT
On PET	2	4	1	—	7
On CT*	6	19	21	17	63
Total^† (%)	12	71	61	34	178
	(32)	(24)	(41)	(31)	(30)

↵* Independently performed high-resolution contrast-enhanced CT and CT component of PET/CT.
↵^† Each site was counted only once, although fusion could have been beneficial for interpretation in >1 criterion.