What Is Internal Radiotherapy? A Comprehensive Guide
With nearly 4 million radiation therapy procedures performed annually worldwide, it’s clear that radiotherapy plays a pivotal role in modern oncology. Among the various radiotherapy types, internal radiotherapy stands out for its precision and effectiveness.
Meet Dr. Mathangi – A Leader In Radiation Oncology
With over 15 years of experience and 12,000+ patients treated, Dr. Mathangi brings international expertise and specializes in stereotactic techniques, IGRT (Image-Guided Radiation Therapy), IMRT (Intensity-Modulated Radiation Therapy), RapidArc, and Intraoperative Radiotherapy (IORT). She uses advanced radiotherapy techniques such as TrueBeam STx to deliver precise care.
What Is Internal Radiotherapy?
Internal radiotherapy, often called brachytherapy, is a form of radiation therapy where radioactive sources are placed directly inside or near the tumor. Unlike external beam radiation therapy (EBRT), internal radiation allows a high dose to be given locally while minimizing exposure to healthy tissue.
Key Internal Radiotherapy Benefits
- Precision: Direct placement reduces exposure to healthy tissues.
- Shorter Treatment Time: Some therapies can be completed in days.
- Fewer Side Effects compared to many external therapies.
- Higher Local Control: Improved chances of destroying localized cancer cells.
Understanding The Internal Radiotherapy Procedure
The typical internal radiotherapy procedure includes:
- Planning: Imaging (CT/MRI) for precise placement and 3D planning.
- Placement: Applicators, catheters, or direct placement of radioactive seeds or wires under anesthesia or sedation.
- Dose Delivery: High-Dose-Rate (HDR) brachytherapy for short sessions or Low-Dose-Rate (LDR) brachytherapy for longer exposure.
- Post-Procedure Monitoring: Follow-up imaging and observation for side effects.
Dr. Mathangi’s team uses image-guidance to ensure treatment accuracy.
Potential Internal Radiotherapy Side Effects
Compared to many external techniques, internal radiotherapy side effects are often milder, but may include:
- Localized soreness or swelling
- Urinary issues or bowel changes
- Fatigue
- Rare: erectile dysfunction or fertility impact when treating pelvic organs
Evaluating Internal Radiotherapy Effectiveness
Numerous studies confirm internal radiotherapy effectiveness for localized cancers including prostate cancer, cervical, breast (post-lumpectomy), and selected head & neck cancers. When combined appropriately with other treatments, brachytherapy can improve local control and long-term outcomes.
A Closer Look At Radiotherapy Types And Techniques
Radiotherapy types broadly include:
- External Beam Radiation Therapy (EBRT) — beams from outside the body (X-rays, protons).
- Internal Radiotherapy (Brachytherapy) — radioactive material placed inside the body.
Modern radiotherapy techniques such as 3D conformal radiation, IMRT, IGRT, and SBRT (Stereotactic Body Radiation Therapy) enhance precision and reduce side effects.
Who Is A Good Candidate For Internal Radiotherapy?
Ideal candidates commonly include people with:
- Early-stage prostate cancer
- Gynecologic cancers (cervical, uterine, vaginal)
- Early breast cancer after lumpectomy
- Selected head and neck cancers
Each case is assessed for tumor size, location, patient health, and overall treatment goals before recommending brachytherapy.
Why Choose Dr. Mathangi — Top Radiation Oncologist in Bangalore
Patients choose Dr. Mathangi for her:
- Global-standard expertise and training
- State-of-the-art technology and facilities
- Compassionate, patient-centered care
- Proven success in complex cancer cases
Gleneagles Cancer Institute offers world-class radiation oncology services, including advanced internal radiotherapy.
Book A Consultation With Dr. Mathangi
If you are considering internal radiotherapy or need expert advice for your cancer treatment, schedule a consultation with Dr. Mathangi.
