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Modern Radiotherapy Techniques

IMRT, SBRT, IGRT, proton therapy, and adaptive treatment planning

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Onkoloji department. Book Appointment →

What is Modern Radiotherapy Techniques?

Modern external-beam radiotherapy uses computed planning, advanced delivery, and on-treatment imaging to maximize tumor dose and minimize normal tissue exposure. Techniques include intensity-modulated radiotherapy (IMRT), volumetric modulated arc therapy (VMAT), and stereotactic body radiotherapy (SBRT).

Image-guided radiotherapy (IGRT) uses CT, MRI, or kV imaging at treatment to verify alignment and account for daily anatomy changes. Adaptive radiotherapy adjusts plans during the course based on anatomical or biological changes. Motion management techniques include breath-hold, gating, and tracking.

Proton therapy delivers a sharp dose drop-off (Bragg peak) and is preferred in selected pediatric, central nervous system, head and neck, and re-irradiation scenarios. FLASH ultra-high dose rate and MR-guided radiotherapy are emerging modalities.

Symptoms

Used to treat or palliate cancer, not to cause symptoms
Skin reactions and fatigue common during treatment
Site-specific acute and late effects
Daily treatments over weeks for fractionated regimens
Few or single sessions for SBRT and SRS

Risk Factors

Treatment-related risks depend on dose, site, and technique
Pediatric patients require careful long-term planning
Re-irradiation has higher risk of late effects
Comorbidities may influence technique selection

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • When considering radiotherapy as part of cancer treatment
  • For consultation on technique options including proton therapy
  • When acute side effects need management
  • For survivorship surveillance of late effects

Treatment Methods

01
Intensity-modulated and volumetric arc radiotherapy
02
Stereotactic body radiotherapy and radiosurgery
03
Image-guided radiotherapy with daily imaging
04
Adaptive radiotherapy based on anatomical changes
05
Proton therapy for selected indications
06
Motion management (breath-hold, gating, tracking)
07
Multidisciplinary planning and quality assurance

Which Department to Visit?

You can visit our Onkoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Onkoloji Department

Let us help you

You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.