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• Survey
  

The aim of this challenge is to create a treatment plan for a clinical case.

Choose one of the following patients:

• Prostate: Patient 15, Case 4
  

• Breast: Patient 21, Case 1
• Head and Neck (Larynx carcinoma): Patient 22, Case 1
• Brain (Glioblastoma): Patient 23, Case 1
  

In all of these patients organs at risk, tumours and targets are contoured. Your task is to carry out all other parts of the treatment planning process, beginning with the definition of an isocentre and points of interest, ending with the plan evaluation, documentation and the simulation of the DICOM transfer to a “LINAC”.

The prostate patient is the one you have already worked with. Nevertheless you can try to create your own plan and afterwards compare it to the plans provided for Unit 1 and 2.

The difficulty of the cases increases in the following order: Brain, Prostate, Breast, Head and Neck!

Use the following prescribed doses and tolerance doses as a guideline:

This overview of the individual steps in the treatment planning process might be useful:

1. Select a patient and load it.
   

2. Read image study associated with the patient.

3. Contouring (in this task: check contours and change Patient/Body-structure to “Use in Comp.”).

4. Add a plan.

5. Add views and isodose levels.

6. Define the isocentre, add points of interest (use different views for set-up).
   

7. Add beams

   1. Check/Choose machine type.

   2. Arrange isocentric beam placement.

   3. Choose appropriate beam directions.

   4. Beam shaping.
      

   5. Add wedges, if necessary.
      

8. Dose computation. (Use a medium/coarse grid for initial calculations only.)
   

9. Beam weighting.

10. Plan normalization.

11. Plan evaluation.
    

12. DICOM transfer (Simulation)
    

13. Plan documentation.

• Prism Radiation Treatment Planning Project
  
  
• Start prism remotely
  

• General Control
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• Coordinate Conventions in Prism

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  Reference Manual

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