Vol. 8, Issue 12, Part C (2022)

As far as treatment of cancer is concern, it is treated by either surgery or chemotherapy or radiation therapy or a combination of them. All this depend upon the type of cancer and its staging. It is found that at any point of treatment nearly 50 percent of the cancer patients undergo radiation therapy. Treatment of cancer by radiation is being done by costly medical linear accelerators based radiation therapy. Cost of treatment modality is varying from hundreds to thousands of million rupees. An advanced radio-surgery machine is even more costly. There are different kinds of techniques by which cancer is being treated by radiation therapy viz. conventional radiation therapy, three dimensional radiation therapy, three dimensional conformal radiotherapy, IMRT etc. Among all of these techniques, IMRT is still considered as gold standard in radiotherapy. With this technique, a very high dose can be delivered to tumor and at the same time normal tissues and OAR can be spared.