What is external beam radiotherapy (EBRT)?
Beam radiotherapy, commonly called EBRT, uses high-energy radiation beams directed from outside the body to destroy or control cancer cells. Globally, about one in three cancer patients undergo EBRT during their treatment journey. It is a precise, non-invasive therapy designed to target tumours while sparing healthy tissue.
At the forefront of this advanced cancer treatment in India stands Dr Mathangi J, Senior Consultant & In-charge of Radiation Oncology at Gleneagles Cancer Institute, Bangalore. With more than two decades of experience and over 12,000 patients successfully treated, she has become one of India’s most trusted names in radiation oncology. Her compassionate care, backed by state-of-the-art technology, ensures that every patient receives personalised attention and world-class outcomes.
Why consider EBRT for cancer treatment?
External beam radiotherapy is recommended for many types of cancer, including those affecting the head and neck, brain, lungs, breast, prostate, and cervix. The treatment offers several benefits:
- Destroys cancer cells or halts their growth and spread.
- Can be used before surgery to shrink tumours or after surgery to eliminate residual cells.
- Preserves organ function and appearance by avoiding invasive surgery.
- Relieves symptoms such as pain, bleeding, or obstruction.
When administered by an expert like Dr Mathangi, EBRT not only improves survival outcomes but also enhances the patient’s comfort and confidence during recovery.
How does the EBRT procedure work?
- Initial consultation: Dr Mathangi evaluates your diagnosis, medical history, and imaging studies to determine whether EBRT is suitable for your condition.
- Simulation and planning: A CT or MRI scan is performed to create a 3D map of the tumour. Precise markings or small tattoos help in accurate daily positioning.
- Treatment design: Techniques such as 3D-CRT (three-dimensional conformal radiotherapy) and IMRT (intensity-modulated radiation therapy) allow the beams to conform to the tumour’s shape, sparing nearby organs.
- Defining radiation fields and fractionation: The treatment area, called the radiation fields, is carefully calculated. The dose is divided into multiple sessions, a process known as fractionation, which protects healthy tissue while ensuring cancer cell destruction.
- Treatment sessions: Patients lie comfortably on a treatment couch while the machine delivers radiation. Each session is painless and typically lasts 15–30 minutes.
- Monitoring and follow-up: Progress is closely tracked with regular imaging and check-ups. Adjustments are made as needed to maximise results.
Advanced technologies used by Dr Mathangi
- 3D-CRT: Enables precise beam shaping to reduce radiation exposure to normal tissues.
- IMRT: Uses variable beam intensities to concentrate radiation on tumours while protecting surrounding structures.
- SBRT: (Stereotactic body radiotherapy) delivers very high doses in fewer sessions for small, well-defined tumours.
- Photon therapy: Employs photon beams that can penetrate deeply to treat internal tumours with high accuracy.
- Gated radiotherapy and DIBH (deep inspiration breath hold) techniques to minimise motion during treatment.
These technologies, combined with Dr Mathangi’s experience and leadership in radiation oncology, ensure that patients benefit from both precision and safety.
Benefits of EBRT under expert supervision
| Benefit | Explanation |
|---|---|
| High precision | Targeted delivery through IMRT and SBRT reduces collateral tissue damage. |
| Improved control | Significantly lowers recurrence rates and improves long-term survival. |
| Organ preservation | Maintains functionality and cosmetic appearance without surgery. |
| Outpatient convenience | Most EBRT sessions require no hospital stay, allowing patients to continue daily routines. |
| Symptom relief | Provides rapid improvement in pain and other discomforts caused by advanced tumours. |
Cancers that benefit from EBRT
Dr Mathangi and her team use EBRT to treat the following conditions effectively:
- Head and neck cancers
- Brain tumours
- Spine tumours
- Esophagus and rectal cancers
- Lung and liver cancers
- Breast cancers
- Bladder and prostate cancers
- Uterine and cervical cancers
- Vulval, anal canal, and penile cancers
Each case receives a custom-tailored treatment plan designed for maximum tumour control and minimal side effects.
Preparing for treatment
- Attend all appointments and maintain consistent positioning during each session.
- Inform your doctor about any medical implants or ongoing medications.
- Follow skin care advice and avoid applying lotions before treatment unless instructed.
- Eat a balanced diet and stay hydrated throughout the treatment course.
- Report any unusual symptoms promptly to Dr Mathangi’s team.
Managing side effects
EBRT is generally well-tolerated, but mild fatigue, skin redness, or site-specific irritation can occur. Under Dr Mathangi’s supervision, patients receive proactive management to minimise discomfort. Her integrated care model includes dieticians, physiotherapists, and counsellors to ensure physical and emotional well-being throughout the therapy journey.
Treatment duration and experience
The standard EBRT schedule involves 5 sessions per week for several weeks. However, modern approaches such as SBRT or hypofractionation allow higher doses per session and shorter overall duration. Dr Mathangi’s department employs these advanced methods whenever clinically suitable, ensuring faster completion with uncompromised results.
Why choose Dr Mathangi for EBRT?
- Over 20 years of radiation oncology experience with 12,000+ successful cases.
- Expertise in IMRT, SBRT, RapidArc, and gated radiotherapy techniques.
- Trained in advanced radiation modalities from Germany and Denmark.
- Head of Asia-Pacific’s first TrueBeam STx installation for superior accuracy.
- Holistic patient care with a multidisciplinary oncology team at Gleneagles Cancer Institute.
Choosing Dr Mathangi means entrusting your care to one of India’s most accomplished radiation oncologists, whose commitment to precision and compassion drives exceptional outcomes for every patient.
Book your consultation
If you or your loved one has been advised to undergo beam radiotherapy or EBRT, now is the time to act. Early initiation often results in better control and recovery. To schedule your appointment with Dr Mathangi, visit https://drmathangi.com/contact/ and fill out the contact form. Her dedicated team will reach out to confirm your consultation slot and assist with all pre-treatment arrangements.
About Dr Mathangi J
Dr Mathangi J is the Senior Consultant & In-charge of Radiation Oncology at Gleneagles Cancer Institute, Bangalore. Holding MBBS, DMRT, and DNB degrees, she trained at Madras Medical College and Apollo Cancer Specialty Hospital, with advanced learning in Germany and Denmark. She has extensive expertise in stereotactic techniques, image-guided interstitial brachytherapy, and RapidArc therapy. With a record of pioneering the installation of the Asia-Pacific’s first TrueBeam STx machine, she continues to shape the future of radiation oncology in India through her clinical excellence and leadership.
