Bone scanning with 99Tcm compounds in metastasizing mammary carcinoma

A comparison of three compounds for bone scanning has been carried out in 9 patients with metastatic mammary carcinoma for evaluating their effectiveness. The best results were obtained with 99Tcm diphosphonate. For the other two compounds tested, 99Tcm polyphosphate and 99Tcm pyrophosphate, no difference could be demonstrated.