Ga-67 scan as a prognostic indicator in primary lung carcinoma.

GA-67 scintigraphy was performed on 74 patients with a variety of histologic types of untreated primary lung carcinoma. Ga-67 uptake was determined, allowing for differences in tumor size. Ga-67 uptake was compared with the response to the incidence of metastases, and to host survival in the 74 patients. From these results, it is suggested that the greater the Ga-67 accumulation in the tumor, the higher the incidence of metastases and the shorter the host survival. Ga-67 scintigraphy appears to be a valuable tool in indicating the prognosis following radiation therapy in patients with primary lung carcinoma.