A method of treating a cancerous region in a breast of a patient comprising (i) imagingthe breast in a three-dimensional coordinate system, (ii) stereotactically determiningthe location of the cancerous region in the breast, (iii) optionally determiningthe volume of the entire cancerous region to be treated, and (iv) while maintainingthe breast in a three-dimensional coordinate system that is identical to or correspondswith the three-dimensional coordinate system used in (i), noninvasively exposingthe cancerous region of the breast of the patient to a cancer-treatment effectivedose of radiation and equipment for use in such a method.
