1. Jürgen Salk University of Ulm Germany
PSI2CAD Interface
Jürgen Salk
University of Ulm
Germany

2. Features ANSI C runs on command line
platform independent i/o routines, i.e. runs on Intel x86 (Windows, Linux, little endian) via SAMBA/NFS and on PA -RISC (HP-UX, big endian)
implemented as plugin for CadPlan GUI (by means of korn-shell wrapper script)

3. Features (cont´d) Online help (-h Option)
Verbose mode (-v option) to trace problems
Trim dose matrix to body contour (-t Option)
Automatically checks for valid filenames
Easy installation and simple usage
It´s small

4. Commandline options

6. Usage as CadPlan plugin Step 1
Add a new plan
Add dummy field
Select resolution of dose matrix

8. Usage as CadPlan plugin Step 2
Store selected parameters as new plan

10. Usage as CadPlan plugin Step 3
Run psi2cad as User Command from the Tools pulldown menu

12. Usage as CadPlan plugin Step 4
Check messages displayed in info box

14. Usage as CadPlan plugin Step 5
Reload plan for imported dose matrix

16. Usage as CadPlan plugin
Once imported to CadPlan the externally calculated plan can be reviewed like any other locally calculated treatment plan

18. Compare plans by images

20. Compare plans by images (cont´d)

22. Compare plans by images (cont´d)

24. Compare plans by dose volume histograms

26. Compare plans by dose volume histograms (cont´d)

28. 3D reconstructions

30. Resolution issues
The CadPlan dose grid is fixed to a maximum number of 160112 grid points, i.e. the maximum size of the dose matrix depends on the grid spacing
Reduction of grid spacing (e.g. from 2.5 mm to 1.25 mm) may lead to incomplete coverage of the regions of interest

32. Resolution issues (cont´d)
If necessary redefine the center of the calculation area to cover regions of interest

34. Resolution issues (cont´d)
Store the new grid spacing/calculation area as a new plan

36. Resolution issues (cont´d)
Perform steps 3-5 as described above to import the externally calculated dose matrix with high resolution grid spacing.
psi2cad will automatically detect the new grid and offset of the calculation area

38. Have fun. ;-)