Detection of ocular melanoma with 4-(3-dimethylaminopropylamino)-7-[123I]-iodoquinoline

Iodine-123-labeled 4-(3-dimethylpropylamino)-7-iodoquinoline was evaluated in nine patients. By using a specially designed dual-pinhole ocular collimator, it was possible to obtain positive images at 2-6 hr for only 70% of the cases with subsequently proven ocular melanomas.