
Like chemotherapy and surgery, radiation therapy is a type of cancer treatment. It most often uses X-rays or high-energy rays to treat cancer, shrink tumours before surgery, or kill cancer cells that are left after surgery. Your radiation oncologist will guide you and recommend radiotherapy tailored to your condition and the type of cancer you have.
Radiation therapy, medically known as radiotherapy, is a cancer treatment that destroys cancer cells and prevents their further growth. It is most often used in combination with surgery and chemotherapy. In radiation therapy, a machine directs high-intensity energy on tumours or cancer cells to damage the DNA of cancer cells.
The radiation used is called ionising radiation, as it forms ions. It creates charged particles and deposits high energy in the cells of the tissues it passes through. The main goal of radiation therapy is to deprive cancer cells of their multiplication (cell division).

There are primarily two types of radiation therapy: external radiation and internal radiation.
Radiation therapy is often given using machines outside the body. These machines move around your body without touching you. The procedure is painless, so you won’t feel anything during the session. It is called external beam radiation therapy (EBRT). It does not make you radioactive, so it is safe to be around others, including children.
3D Conformal Radiation Therapy (3D-CRT)
Intensity-Modulated Radiation Therapy (IMRT)
Stereotactic Body Radiation Therapy (SBRT) or Stereotactic Ablative Radiation Therapy (SABR)
How It Works
Internal radiation therapy, or brachytherapy, delivers radiation inside the body. It targets cancer directly while protecting healthy tissues. Doctors place a small radioactive source near the tumour. It stays there for a set time, releasing radiation to destroy cancer cells. This therapy is often used for prostate, cervical, and breast cancer. Some implants are temporary, while others remain but lose radiation over time.
Interstitial Radiation:
Intracavitary Radiation:
Systemic Radiation:
How does it work?
Doctors place a small radioactive source inside or near the tumour. It stays there for a set period, releasing radiation to kill cancer cells while limiting exposure to healthy tissue. Some implants are temporary, while others remain in the body permanently but lose radiation over time.
Radiation therapy is used to shrink tumours, destroy cancer cells, or relieve symptoms. Doctors may recommend it in the following cases:
As the main treatment for cancers that cannot be removed by surgery.
Radiation therapy is a precise, non-invasive treatment that targets cancer cells. It is delivered in two main ways:
The process is painless and performed as an outpatient procedure at CMRI Hospital, allowing patients to continue their daily activities.
The CK Birla Hospitals, Jaipur is proud to offer North India's first AI-powered Adaptive Radiation Therapy with Elekta Evo, an advanced technology that personalises radiation treatment before every session. As tumours and surrounding healthy organs can change in size, shape or position during the course of treatment, this system uses daily CT imaging and artificial intelligence to assess these changes.
If required, the treatment plan is adapted to match your body's condition on that day, helping deliver radiation more precisely while protecting nearby healthy tissues. Every AI-assisted recommendation is carefully reviewed and approved by an experienced radiation oncologist before treatment, ensuring expert clinical oversight at every step.
Unlike conventional radiation therapy, which follows a single treatment plan throughout the treatment course, AI-powered Adaptive Radiation Therapy continuously adapts to anatomical changes as treatment progresses. This innovative approach helps maintain precise targeting of the tumour, improves protection of healthy organs and may reduce treatment-related side effects in selected patients. By combining advanced AI technology with the expertise of our radiation oncology team, we provide highly personalised, safe and precise cancer care that adapts to your needs throughout your treatment journey.
Radiation therapy is a proven treatment with many benefits, including:
While radiation therapy is safe, some patients may experience mild side effects. These depend on the treatment area and dose.
Common side effects:
You should choose RBH Hospital for Radiation therapy in Jaipur because they have a team of highly skilled oncologists and specialists who provide advanced and personalised care. With state-of-the-art technology and facilities, RBH ensures safe and effective treatment tailored to your needs.
No, radiation therapy itself is painless, but mild side effects may occur.
Yes, it is a well-established and safe treatment, with side effects managed by doctors.
Success depends on the cancer type and stage, but it is highly effective, especially in early stages.
Avoid processed foods, spicy foods, alcohol, and raw or undercooked meats.
It uses high-energy radiation to destroy cancer cells while minimising damage to healthy tissue.
It is an advanced form of radiation therapy that uses daily CT imaging and artificial intelligence (AI) to assess changes in your body and adjust the treatment plan when needed for greater precision.
Conventional radiation therapy follows the same treatment plan throughout the treatment course, whereas AI-powered Adaptive Radiation Therapy can modify the plan based on changes in your body's anatomy before each treatment session.
No. AI is a support tool that assists with treatment planning. Every recommendation is carefully reviewed and approved by an experienced radiation oncologist before treatment.
Yes. A quick CT scan is performed before each session to check for changes in the tumour or surrounding organs and determine whether the treatment plan needs to be adjusted.
Yes. It is designed to improve treatment accuracy while helping reduce radiation exposure to nearby healthy tissues. All treatment decisions remain under the supervision of experienced radiation oncology specialists.
By adapting the treatment plan to your daily anatomy, Adaptive Radiation Therapy may help reduce treatment-related side effects in selected patients by limiting unnecessary radiation exposure to healthy tissues.
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