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Table of contents

Introduction to CT in Radiotherapy

Overview

Principle of radiotherapy

Radiotherapy Treatment Planning Process

Considerations of a CT simulation scan

Specialist CT equipment for RT planning

Flat couch top & positioning devices

Flat couch top & positioning devices (2)

Wide bore CT scanners

Wide bore CT scanners (2)

Wide bore CT scanners (3)

Wide bore CT scanners (4)

CT simulation software

CT simulation software (2)

CT simulation software (3)

CT simulation software (4)

CT simulation software (5)

CT simulation software (6)

External positioning lasers

Slide 20

Respiratory gated CT

Ungated CT Acquisition & Treatment

Gated CT for Un-Gated Treatment

Gated CT for Gated Treatment

Slide 25

Respiratory gated CT

Simulator CT

Simulator CT (2)

Simulator CT (3)

Simulator CT (4)

QC tests for radiotherapy CT scanners

QC tests for radiotherapy CT scanners (2)

In plane spatial integrity

In plane spatial integrity (2)

Couch movement & alignment

Couch movement

Couch & laser alignment test tool

Couch alignment

Laser alignment

Nuclear Associates laser alignment tool

CT numbers

CT numbers

CT number uniformity

CT number uniformity (2)

CT number uniformity (3)

CT number accuracy

CT no accuracy

CT number and electron density

CT number and electron density (2)

CT number and electron density (3)

Tolerance of CT number

Summary

Author: Maria Lewis

E-mail: maria@impactscan.org

Homepage: http://www.impactscan.org/

ImPACT course presentation index: http://www.impactscan.org/impactcourseslides.htm