Superficial Radiation Therapy Treatment Planning

Abstract

The main objective in radiation oncology for skin lesions is to eradicate the lesion while maintaining the patient’s present and future quality of life. Delivering precisely measured dose of radiation to a defined tumor volume with minimal damage to surrounding tissue is the main goal. The success of eradicating a tumor depends on the radiosensitivity of the tumor as well as tolerance of surrounding normal tissue. Normal tissue toxicity factors that should be considered in selecting a dose scheme should depend on the size or volume of the area, vascularity, and the underlying and supporting tissues. The tissues of the body have individual variation of absorption and tolerance to ionizing radiation. Therapeutic indexes (also known as therapeutic ratio) are a good tool for dose selection.