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Summary

Summary Treatment Planning in Radiotherapy – Complete 7-Page Cheat Sheet for Radiotherapy Students and Clinicians

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This document provides a structured 7-page cheat sheet covering the full radiotherapy treatment-planning workflow. It includes imaging essentials, contouring guidelines (GTV, CTV, ITV, PTV, OARs), dose prescription and fractionation types, DVH interpretation, planning objectives, optimization strategies, and modern techniques such as IMRT, VMAT, SBRT/SRS, and proton therapy. Additional sections summarize immobilization, IGRT methods, adaptive radiotherapy, dose-calculation algorithms, and QA procedures, making the notes suitable for exam revision and clinical preparation.

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TREATMENT PLANNING IN
RADIOTHERAPY
7 PAGE CHEAT SHEET

, OVERVIEW OF TREATMENT PLANNING
1. Core Steps in Radiotherapy Treatment Planning
1. Patient consultation & clinical assessment
2. Immobilization & simulation
3. Image acquisition (CT/MRI/PET)
4. Contouring:
o GTV
o CTV
o ITV
o PTV
o OARs (Organs at Risk)
5. Treatment technique selection
6. Dose prescription
7. Planning setup & beam arrangement
8. Optimization (forward or inverse)
9. Dose calculation
10. QA (patient-specific and machine)
11. Treatment delivery
12. Verification & adaptations

2. Imaging Essentials
CT
 Gold standard

 Provides electron density → dose calculation

 Slice thickness: 1–3 mm recommended
MRI
 Superior soft tissue definition

 Used for fusion, especially in CNS, pelvis, head & neck

Document information

Uploaded on
December 8, 2025
Number of pages
9
Written in
2025/2026
Type
Summary
$8.89

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