The aim of radiation therapy is to use beams of radiation to kill cancer cell with as little risk as possible to normal cells. Radiation treatment, like surgery,is a local treatment .It affect the cancer cells only in a specific areas of the body. Radiation therapy can be used before surgery to shrink a tumor called as neoadjuvant Radiation. Radiation therapy may be used after surgery to stop growth of cancer cells that may remain called as adjuvant Radiation. Radiation therapy can be used at the time of surgery known as Intraoperative Radiation (IORT).
The source of radiation may be from a machine outside the body also called as EBRT or External Beam Radiation therapy or from radioactive material placed as close as possible to the cancer cells (Brachytherapy).
EBRT is usually given during outpatient visits to a hospital .In this, a machine directs the high energy rays at the tumor and a small margin of normal tissue surrounding it. The type of machine used for radiation therapy at MAX cancer centre is called as a Linear Accelerator, True Beam STX . It has the facility for IMRT (Intensity Modulated Radiation Therapy), IGRT (Image Guided Radiation Therapy),SRS (Stereotactic Radiation Therapy), SBRT(Stereotactic Body Radiation Therapy).
Intensity-modulated radiation therapy (IMRT) and Image Guided Radiation Therapy (IGRT) for head and neck cancers or carcinomas refers to a new approach that uses computer based optimization process to carefully create a gradient or a dose fall-off between the target tissues and the surrounding normal tissues at risk. This fall of dose saves he surrounding normal structures effectively. Therefore these techniques and technology offers the prospect of increasing the locoregional
control probability while decreasing the complication and side effects rate.
Image guided radiotherapy is classically defined as radiation therapy that is delivered only after verification of position of structures of interest by performing either an X-Ray or CT based image. The same are done by an imaging system mounted on the linear accelerator itself.
True beam STX is an advanced radiotherapy system to deliver more powerful cancer treatments with pinpoint accuracy and precision. It uniquely integrates advanced imaging and motion management technologies within a sophisticated new architecture that makes it possible to deliver treatments more quickly while monitoring and compensating for tumor motion.
While technology always opens the doors it is always a skilful doctors who can get inside it. To make the best skills available to our patients, we at Max have super-specialised “Head and Neck Disease Management Group” which is composed of individuals who are skilled in management of head and neck cancers from all disciplines of surgery, radiation therapy, chemotherapy, speech and swallowing rehabilitation, plastic surgery, physiotherapy, nutrition and dietetics, dentistry and implantology.