Dr. Anusheel Munshi, HOD - Department of Radiation Oncology at Manipal Hospitals Delhi gives an in-depth explanation about radiation therapy for cancer treatment and the types of radiation therapy used at Manipal Hospitals. Watch the video to know more. Book an appointment with our specialists today. Call 011 4967 4967 or click here - https://bit.ly/MHNewDelhi
Radiotherapy means treatment of cancer by special x rays (or in some cases gamma rays). These rays are special because unlike ordinary x rays, these rays have much higher energy and much higher precision for accurate treatment delivery. Traditionally radiation area used to be empirically marked on the patient's body by the treating doctor. With the advent of diagnostic x ray-based imaging, treatment area (or fields) started being marked based on bony landmarks. In the early 1970s, the CT scanner arrived and very soon radiation oncologists started using CT based methods for radiotherapy planning (also known as simulation).
On March 11, 2020, WHO declared COVID-19 as a global pandemic which rapidly crossed borders and led to a major healthcare crisis and economic slowdown. The crisis has brought the world to a near-complete standstill. As of June 23, 2020, the pandemic has affected more than 90 lac people and caused nearly 5 lac deaths.
Radiation therapy or radiotherapy uses different forms of radiation (typically X rays or gamma rays) to effectively and safely treat cancer. Radiation oncologists use radiation to cure cancer, for controlling the growth of the cancer cells or sometimes to relieve symptoms like pain.
In external beam radiation therapy, the radiation oncologist uses a machine to direct high-energy X-rays to treat cancer. In Internal radiation therapy, tubes or channels are placed in the body to allow the radioactive source to go and treat the disease from inside.
Stereotactic Radiotherapy allows the radiation oncologist to precisely channel the radiation beams to destroy the tumours. Such a precision might spare more part of healthy tissue from getting damaged. Stereotactic radiotherapy is usually given in a single dose/single session.
Radiation therapy uses X-rays or protons to kill the cancer cells and prevent them from multiplying. Side effects typically depend on the body site that is being treated. The common ones include - hair loss, skin irritation, dry mouth, sore throat, nausea, bladder infection, diarrhoea and frequent urination.
A normal healthy diet is encouraged during radiation therapy. Added sugars, solid fats and alcohol consumption are best avoided.