Use of hormone receptors in scintigraphy of the ovaries

Based on the mechanism of hormone receptors, luteinizing hormone (LH) labelled with 123-iodine was used as tracer in scintigraphy of rabbit ovaries. The ovaries were visualized in static pictures 6-15 min after injection except in the case where the rabbit was pre-injected with 10 micrograms of cold LH. 3.1% of the injected activity was found in the ovaries 14 h after injection.