TABLE 1

Biodistribution at 1 and 2 Hours After Injection

	⁶⁸Ga-PSMA-11		¹⁸F-AlF-PSMA-11		¹⁸F-AlF-PSMA-11 + ¹⁸F-AlF
Tissue	1 h	2 h	1 h	2 h	1 h	2 h
Blood	0.4 ± 0.4	0.3 ± 0.2	0.3 ± 0.2	0.1 ± 0.0	0.2 ± 0.0	0.1 ± 0.0
Muscle	0.2 ± 0.1	0.2 ± 0.0	0.2 ± 0.1	0.1 ± 0.0	0.1 ± 0.0	0.1 ± 0.0
Tumor	10.4 ± 2.3	7.9 ± 1.3	14.7 ± 7.6	10.8 ± 2.3	12.2 ± 3.8	10.4 ± 4.3
Lung	0.8 ± 0.1	0.7 ± 0.1	0.7 ± 0.1	0.3 ± 0.0	0.5 ± 0.1	0.3 ± 0.1
Spleen	10.3 ± 3.3	10.4 ± 2.6	4.1 ± 0.6	1.9 ± 0.5	0.5 ± 0.1	0.3 ± 0.1
Pancreas	0.6 ± 0.1	0.5 ± 0.1	0.3 ± 0.0	0.2 ± 0.0	3.2 ± 0.4	2.4 ± 0.5
Kidney	101.0 ± 8.8	105.8 ± 13.8	36.7 ± 9.3	43.5 ± 5.7	0.3 ± 0.1	0.2 ± 0.0
Liver	0.4 ± 0.2	0.3 ± 0.0	0.4 ± 0.1	0.2 ± 0.0	54.5 ± 4.9	44.4 ± 7.3
Stomach	0.3 ± 0.0	0.3 ± 0.1	0.3 ± 0.0	0.2 ± 0.0	0.4 ± 0.1	0.3 ± 0.0
Duodenum	0.1 ± 0.0	0.2 ± 0.1	0.2 ± 0.0	0.1 ± 0.0	0.3 ± 0.0	0.2 ± 0.0
Prostate	0.7 ± 0.1	0.4 ± 0.1	0.7 ± 0.6	0.8 ± 0.8	0.2 ± 0.0	0.1 ± 0.0
Glandula parotis	1.8 ± 0.3	1.3 ± 0.4	0.6 ± 0.1	0.3 ± 0.0	0.5 ± 0.4	0.6 ± 0.7
Bone	0.1 ± 0.0	0.1 ± 0.0	3.3 ± 0.6	5.0 ± 0.6	7.1 ± 1.3	7.0 ± 0.8
Bone marrow	0.7 ± 0.6	0.2 ± 0.1	2.5 ± 1.6	0.6 ± 0.2	7.3 ± 0.6	7.4 ± 2.0
Bone − bone marrow	0.1 ± 0.0	0.1 ± 0.1	2.9 ± 0.7	4.2 ± 0.4	0.6 ± 0.5	0.8 ± 0.5

Data are mean ± SD.