TABLE 4

Changes in Treatment Management Attributable to ¹⁸F-FDG PET and Its Associated Clinical Impact

		Scan findings		Final diagnosis	Management plan		Follow-up time (mo)	Final status^*
Patient(s)	Group	CWU	PET	Final diagnosis	Before PET	After PET	Follow-up time (mo)	Final status^*	Impact	Remarks^*
1	A	CR	LRF	LRF	iFU	CST	16	NED	P
2	A	CR	RF	RF	iFU	CST	27	NED	P
3	A	SF	CR	CR	Biopsy	iFU	28	NED	P
4	A	CR	LF	CR	iFU	More iFU	35	NED	N
5	A	CR	RF	CR	iFU	Biopsy	32	AWD	N	Locoregional recurrence 30 mo later
6–9	A	CR	SF	CR	iFU	More iFU	16–28	NED	N	Pulmonary inflammation
10	A	CR	SF	CR	iFU	More iFU	15	NED	N	Inflammatory lumbar spine disease
11	A	CR	Second primary	CR	iFU	More iFU	21	NED	N	Rib fracture
12	B	CR	LF	LF	iFU	CST	6	DWD	P
13	B	CR	RF	RF	iFU	CST	10	DWD	P
14	B	CR	SF	SF	iFU	PT	20	AWD	P	Solitary hepatic metastasis
15	B	CR	SF	SF	iFU	PT	24	NED	P	Solitary bony metastasis at sacrum
16–32	B	EL or sLF	CR	CR	iFU	Less iFU	12–38	NED	P
33	B	SF	CR	CR	PT	iFU	15	NED	P
34	B	CR	Second primary	Second primary	iFU	Thyroidectomy	17	NED	P	Papillary thyroid carcinoma
35	B	CR	LF	CR	iFU	More iFU	27	NED	N	Osteoradionecrosis
36	B	CR	RF	CR	iFU	More iFU	32	AWD	N	Solitary rib metastasis 18 mo later
37	B	CR	SF	CR	iFU	More iFU	27	NED	N	Pulmonary inflammation

↵* See text for details.
CR = complete remission; CST = curative salvage treatment; EL = equivocal local lesion (score of 2); iFU = imaging follow-up; LF = local failure; LRF = locoregional failure; N = negative; P = positive; PT = palliative treatment; RF = regional failure; SF = systemic failure; sLF = suspected local failure (score of 3).