Table 1.

Concordance of 139 Individual Total Lesions on MIBG and FDG-PET

Site of Lesion	Patient ID	MIBG Pretherapy	PET Pretherapy	Con Pretherapy	MIBG Post-Therapy	PET Post-Therapy	Con Post-Therapy	MIBG Total	PET Total	Con Total
Bone	5	5	3	0.60	3	0	0	8	3	0.38
	6	2	0	0	—	—	—	2	0	0
	7	7	6	0.86	4	3	0.75	11	9	0.82
	8	12	9	0.75	9	7	0.45	21	16	0.61
	9	4	1	0.25	1	0	0	5	1	0.20
	10	4	8	0.50	—	—	—	4	8	0.50
	11	1	1	1	2	1	0.50	3	2	0.67
	12	4	0	0	0	0	—	4	0	0
	13	10	8	0.80	8	4	0.50	18	12	0.67
	14	—	—	—	8	0	0	8	0	0
	15	10	0	0	—	—	—	10	0	0
	16	4	1	0	9	0	0	13	1	0
	19	8	1	0.13	0	0	—	8	1	0.13
Total lesions		71	38	33/76	44	15	13/46	115	53	46/122
				43.4%			28.3%			37.7%
Soft tissue	4	2	1	0.50	—	—	—	2	1	0.50
	8	1	3	0.33	2	1	0.50	3	4	0.40
	9	1	1	1	1	1	1	2	2	1
	10	1	3	0.33	—	0	—	1	3	0.33
	11	0	1	0	1	1	1	1	2	0.50
	16	1	2	0.50	1	1	1	2	3	0.67
Total lesions		6	11	5/12	5	4	4/5	11	15	9/17
				41.7%			80%			52.9%
All lesions	4	2	1	0.50	—	—	—	2	1	0.50
	5	5	3	0.60	3	0	0	8	3	0.38
	6	2	0	0	—	—	—	2	0	0
	7	7	6	0.86	4	3	0.75	11	9	0.82
	8	13	12	0.67	11	8	0.46	24	20	0.57
	9	5	2	0.40	2	1	0.50	7	3	0.43
	10	5	11	0.45	—	—	—	5	11	0.45
	11	1	2	0.50	3	2	0.67	4	4	0.60
	12	4	0	0	0	0	—	4	0	0
	13	10	8	0.80	8	4	0.50	18	12	0.67
	14	—	—	—	8	0	0	8	0	0
	15	10	0	0	—	—	—	10	0	0
	16	5	3	0.14	10	1	0.10	15	4	0.12
	19	8	1	0.13	0	0	—	8	1	0.13
Total lesions		77	49	38/88	49	19	17/51	126	68	55/139
				43.2%			33.3%			39.6%

NOTE. Only patients with bone or soft tissue lesions are included in that respective section of the table. Total lesions indicates the number of distinct anatomical lesions seen by a single modality or by the combined modalities.

Abbreviations: MIBG, metaiodobenzylguanidine; FDG-PET, [¹⁸F]fluorodeoxyglucose positron emission tomography; Con, concordance, which indicates the fraction of anatomically distinct lesions identified on both types of scan.