Half body irradiation for the palliation of bone metastases.

Half body irradiation using single large doses of photons has been reported as an effective modality for the palliation of symptoms due to widespread metastatic bone malignancy. Over a 7 year period (1982-1988) sixteen patients with disseminated malignancy were given half body irradiation at Auckland Hospital. Treatment consisted of a single dose of radiation of between 5 and 8 Gray. Either 6 or 8 MV photon beams were used. Twelve patients received treatment to the lower half body, three patients to the upper half body and one patient to both upper and lower half body. Significant pain relief occurred in fifteen patients and two patients experienced improvement with hypercalcaemia. All patients tolerated the treatment well and toxicity was minimal.