Treatment Planning in Radiotherapy — Comprehensive Notes for Radiotherapy Students & Professionals (Complete lecture summary)

Treatment Planning in Radiotherapy
— Comprehensive Notes for
Radiotherapy Students &
Professionals
Full-text, exam-ready notes covering TPS

, 📚 TREATMENT PLANNING IN RADIOTHERAPY


📘 CHAPTER: Treatment Planning in
Radiotherapy (Full Notes)
(Perfect for revision, exams, and clinical practice)




1.0 Introduction
Treatment planning in radiotherapy is the structured process of designing, calculating,
optimizing, and verifying the delivery of therapeutic radiation to achieve maximum tumor
control with minimal toxicity. Modern radiotherapy techniques—including IMRT, VMAT,
SBRT, SRS, and proton therapy—depend on sophisticated planning workflows and
imaging systems.




2.0 Treatment Planning Workflow
A standard radiotherapy planning workflow includes:
1. Patient simulation (CT/MRI/PET)
2. Image registration and fusion
3. Contouring: GTV, CTV, PTV, OARs
4. Beam setup (energy, geometry, modifiers)
5. Dose calculation in TPS
6. Optimization (inverse/forward)
7. Plan evaluation (DVH, indices)
8. QA verification
9. Treatment delivery