Active bone marrow S-values for the low-energy electron emitter terbium-161 compared to S-values for lutetium-177 and yttrium-90

EJNMMI Physics

Table 4 Skeletal-averaged spongiosa S-values (mGy/MBq-s) calculated using the sources AM, IM, and TBS. The fraction from the skeletal average S(AM ← AM) in Table 3 is calculated in the columns on the right

Radionuclide	S(Spongiosa ← Spongiosa)		Fraction from skeletal average S(AM ← AM)
Radionuclide	Female	Male	Female	Male
¹⁷⁷Lu	8.21E−06	6.01E−06	0.59	0.56
¹⁶¹Tb	1.12E−05	8.57E−06	0.53	0.53
⁹⁰Y	3.99E−05	2.99E−05	0.66	0.64