Canadian Medical Guide > Analytical, Diagnostic and Therapeutic Techniques and Equipment > Therapeutics > Radiotherapy > Hemibody Irradiation Terms and Definitions

Hemibody Irradiation

Medical Definition:	Irradiation of one half or both halves of the body in the treatment of disseminated cancer or widespread metastases. It is used to treat diffuse metastases in one session as opposed to multiple fields over an extended period. The more frequent treatment modalities are upper hemibody irradiation (UHBI) or lower hemibody irradiation (LHBI). Less common is mid-body irradiation (MBI). In the treatment of both halves of the body sequentially, hemibody irradiation permits radiotherapy of the whole body with larger doses of radiation than could be accomplished with WHOLE-BODY IRRADIATION. It is sometimes called "systemic" hemibody irradiation with reference to its use in widespread cancer or metastases. (P. Rubin et al. Cancer, Vol 55, p2210, 1985)
Guide Notes:	in radiother coord IM with disease /radiother (IM); for hemibody irrad experiments, see note on WHOLE-BODY IRRADIATION; DF: HEMIBODY IRRAD
Previously Indexed:	Radiotherapy (1980-1993),Radiotherapy Dosage (1980-1993),Whole-Body Irradiation (1981-1993)

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