New Delhi, Feb. 11 -- In an interview with HT Lifestyle, Dr (Lt Col) Ashok Kumar, Senior Consultant and Head - Radiation Oncology at Sarvodaya Hospital in Faridabad's Sector-8, answered, "It is a form of cancer therapy wherein high energy beams are used to treat the cancer. It is a clinical modality dealing with the use of ionizing radiations in the treatment of patients with malignant cancers (and occasionally benign diseases)."

He revealed, "The aim of radiation therapy is to deliver a precise measured dose of radiation to a defined tumour volume with as minimal damage as possible to surrounding healthy tissue, resulting in eradication of the tumour, a high quality of life and prolongation of survival or palliation of symptoms at a rea...