FAPI-04 Uptake in Healthy Tissues of Cancer Patients in ⁶⁸Ga-FAPI-04 PET/CT Imaging

Table 1

Median, mean, minimum, and maximum SUV values of tissues and organs.

	SUVmax		SUVavg		SUVavg
	Median	Min/max	Median	Min/max	Mean/SD
Uterine corpus	11.74	2.62–37.39	8.59	1.73–25.32	10.1 ± 6.06
Renal pelvis	8.48	1.38–99	5.08	0.99–62.99	9.9 ± 12.02
Uterine cervix	4.31	1.33–9.58	2.955	0.94–7.06	3.1 ± 1.42
Submandibular gland	3.46	1.28–8.95	2.2	0.78–5.61	2.4 ± 1.02
Pancreatic tail	3	0.94–8.26	1.82	0.55–5.45	2 ± 1
Ovaries	2.69	0.3–5.87	1.735	0.14–3.55	1.9 ± 0.86
Pancreatic corpus	2.61	1.04–2.58	1.66	0.79–8.62	2.2 ± 1.52
Esophagogastric junction	2.46	1.08–3.79	1.56	0.69–2.86	1.5 ± 0.45
Quadratus lumborum muscle	2.38	0.79–7.73	1.69	0.58–4.13	1.7 ± 0.73
Esophagus	2.34	1.15–9.11	1.71	0.87–3.9	1.8 ± 0.59
Scalp	2.32	0.98–5.18	1.49	0.56–3.5	1.5 ± 0.52
Palatine tonsils	2.32	1.14–4.68	1.56	0.7–2.76	1.6 ± 0.49
Prostate	2.29	1.09–5.5	1.5	0.65–2.7	1.6 ± 0.67
Renal cortex	2.24	1.22–3.73	1.4	0.73–2.33	1.4 ± 0.37
Pancreatic head	2.22	1.18–10.13	1.425	0.74–6.38	1.8 ± 1.24
Thyroid	2.02	0.76–10.83	1.44	0.56–6.79	1.7 ± 1.19
Testis	2	1–3.07	1.43	0.72–1.87	1.3 ± 0.39
Rectum	1.93	0.74–4.96	1.27	0.44–3.02	1.3 ± 0.57
Abdominal aorta	1.8	0.85–3.04	1.22	0.59–2.1	1.2 ± 0.35
Nasopharynx	1.76	0.57–6.91	1.11	0.33–3.82	1.1 ± 0.51
Parotid gland	1.75	0.83–3.65	1.19	0.55–2.49	1.3 ± 0.41
Thoracic aorta	1.7	0.83–3.72	1.23	0.56–2.46	1.3 ± 0.41
Reactive lymph nodes (cervical)	1.74	0.98–6.88	1.44	0.85–4.24	1.5 ± 0.69
Psoas muscle	1.68	0.51–3.61	1.07	0.35–2.3	1.1 ± 0.43
Thymus	1.67	0.96/2.17	1.27	0.72/1.58	1.3 ± 0.53
Lung hilum	1.64	0.6–3.16	1.07	0.4–2.3	1.1 ± 0.4
Stomach corpus	1.51	0.41–3.93	0.97	0.23–2.28	1 ± 0.4
Left ventricular walls	1.39	0.6–2.59	0.89	0.41–1.77	0.9 ± 0.32
Stomach antrum	1.38	0.58–4.2	0.9	0.33–2.51	1 ± 0.41
Breast glandular tissue	1.345	0.58–5.28	0.815	0.33–3.55	1.2 ± 0.79
Nipple	1.33	0.42–4.97	0.75	0.11–2.82	1 ± 0.61
Spleen	1.295	0.64–2.81	0.81	0.34–1.95	0.9 ± 0.33
Duodenum	1.25	0.6–2.92	0.84	0.37–1.67	0.9 ± 0.31
Ileum	1.205	0.24–3.56	0.79	0.17–2.51	0.9 ± 0.47
Liver	1.19	0.47–2.91	0.78	0.31–1.64	0.8 ± 0.3
Iliac bone	1.135	0.57–2.12	0.7	0.34–1.31	0.7 ± 0.21
Lung parenchyma	1.13	0.37–2.71	0.77	0.26–1.63	0.8 ± 0.3
Descending colon	1.1	0.53–2.13	0.7	0.32–1.51	0.7 ± 0.28
Cecum	1.09	0.08–2.39	0.705	0.05–1.59	0.7 ± 0.28
Sternum	1.06	0.52–1.05	0.73	0.34–1.15	0.7 ± 0.17
Femur neck	1.01	0.42–2.21	0.61	0.29–1.16	0.6 ± 0.21
Lumbar vertebrae	0.99	0.51–2.2	0.65	0.28–1.87	0.7 ± 0.26
Gallbladder	0.85	0.42–1.73	0.58	0.24–1.31	0.6 ± 0.27
Mesenteric adipose tissue	0.795	0.26–1.67	0.55	0.16–1.17	0.6 ± 0.27
Humeral head	0.75	0.44–1.93	0.45	0.25–1.38	0.5 ± 0.24
Cerebellar cortex	0.2	0.05–0.9	0.11	0.03–0.3	0.1 ± 0.07
Cerebral cortex	0.08	0.01–0.27	0.03	0.01–0.18	0.0 ± 0.03
Primary tumors	12.61	1.65–50.44	8.39	1.23–29.63	9.5 ± 5.87

SUV: standard uptake value, SD: standard derivation, avg: average.