Fig. 5.

Nuclear images of pigs administered ¹⁶⁶HoMS. Planar nuclear scan of pig 15, demonstrating highly selective deposition of ¹⁶⁶HoMS microspheres in the liver (a); planar nuclear scan of pig 18, on which a substantial amount of ¹⁶⁶Ho (17.4%) is revealed to be present in the gastric wall (b); planar nuclear scan of pig 10, demonstrating excessive amounts of radioactivity (52.5% of injected dose) present in the stomach. An intense hotspot in the lesser curvature of the stomach is depicted by the arrow (c)