A method and system of detecting a disease state in a targeted organ is described using nuclear medicine techniques. In preferred embodiments, a radiotracer with specific uptake for diseased portions of the targeted organ is administered to a patient. A gamma ray counter with at least one gamma ray detector is used to count gamma rays emitted by the radiotracer. By placing the gamma ray detector over the location of the targeted organ, the gamma ray counter can provide a quick yes or no answer on whether the disease state exists in the targeted organ.