Transcript No Slide Title

1. Create an IMRT plan on the Cadplan/Helios system. When selecting the LMC
options, select the “Extract Portal Image with” option and use 0 MU. This creates the
CIAO
(MUs may be assigned with the CIAO, but they will be deducted from the treatment
beam).
2. Upon Completion of the calculation, click on the IMRT tab to see the two DVA files
created for each field . The one with a “p” in the file name is the CIAO.
(See Appendix 1 for more details)
3. Export the MLC file (File-Export-MLC File-Varian…)
4. Apply a name mask Consider using a very short description to make the viewing of the files
easier. Cadplan will add more info to this name including field number and “p” or “m”)
(See Appendix 2 - The INI file must be set for export to the proper location)
5. Export the plan to Somavision
5A. Select the Patient ID to Soma Vision export
6. Open the patient and 3D Image set “CT_*”
7. In Somavision - Plan Setup, import the plan (File-Import-from CadPlan)
8. Select the appropriate plan
9. You will get the the following warning about the dMLC being removed, ignore it
for all fields.
10. The IMRT plan minus the DVA files are now imported and able to be viewed. Note the field
sizes will be associated with the treatment ports, they will need to be changed to the CIAO field
size if different. NOTE: This import will invalidate dose matrix on SomaVision, if you like to
preserve it, you need to export plan from CadPlan twice (with different plan number) and import
two plans in SomaVision, one for dose distribution review, the other one for CIAO definition.
11. Select a field in the Navigation window then import an MLC by choosing (FileImport-Import MLC Plan)
12. Select appropriate MLC Configuration
13. The MLC files will be on the Vision drive in the MLC directory (As mapped in the *.ini file)
14. After you have pointed to the correct directory, choose All Files (*.*) in the MLC File Window the
choose the Varian IEC Import Scale, then select the correct filed DVA file.
15. Ignore the mismatch error message
16. View MLC in Beam’s Eye View option for appropriate shape and check beam properties
for correct gantry angle, collimator angle and field size. Repeat steps 11 and 16 for all
fields.
17. Beam’s Eye View Verification of Shape relative to CadPlan and all CIAOs
with DVA imported.
Beam’s Eye View
CIAO’s with DVAs imported
18. Highlight the plan in the Navigation Window
19. Export the plan to the VoxelQ (File-Export-Dicom RT)
20. Select the Dicom RT to VQ export Filter
21. At VoxelQ, open the patient’s study and select (Tools-Verification)
22. Select (Tools-Connectivity)
23. “IMPORT” in the RTP Plans box.
24. Select the Patient /Plan
25. An isocenter must be established for the imported plan. An original VoxelQ
plan with a traceable isocenter will allow you to properly position the imported
plan. If the VQ plan selected in this option is the original isocenter, the imported
plan will be placed at the original isocenter.
26. Select the treatment unit which matches the machine for the imported plan.
27. I believe this is for housekeeping on the mounted shared directory. We
choose no. Although yes will work also.
28. Dicom import warning messages appear for structures and table positions. Ignore this.
29. This message appears, ignore it.
30. The imported plan appears
in the Plan list. Click on done at
the bottom of the Connectivity
window.
31. In the Verification window
the imported plan will have all
variables in red and it is not
editable. Click on the Current
Plan Tab.
32. In the Plan Manager Box,
Click on “DUP” (Duplicate)
33. There now is a copy of the imported plan
labeled “your plan name-copy”
34. The copied plan is modifiable.
You can now switch to Virtual
Simulation and export the DRRs in
the normal fashion
Appendix 1 – File name convention
A. DVA files:
ddmmyyxxx.zDpfkgg.dva
f
p
k
gg
field number (0-9, 0 .. Field
plan number (0-9, 0
...
file specification
m
p
carriage group number
#10)
plan #10)
...
modulation part
...
CIAO, open port
B. MLC export files
filenameXkgg.dva
filename
X
k
gg
name defined when file was exported from CadPlan
field number
file specification
m
...
modulation part
p
...
CIAO, open port
carriage group number
Appendix 2 – initialization file
This file is located in a configuration directory (in this example
/users/config627) a has a name ‘hostname’.ini. You can obtain a
hostname of your computer by typing a command hostname in the terminal
window.
Below is shown a part of section 3 of the initialization file:
DICOM_IMP
/users/dicom
DICOM_EXP
/tmp
DICOM_SERVER1
DICOM_HOST1
DICOM_PORT1
DICOM_APPTITLE1
BLOCK_DEST file
BLOCK_DIR /home/vision/block
COMP_DEST file
COMP_DIR
/home/vision/comp
MLC_DEST
file
MLC_DIR
/home/vision/mlc
Make sure you have correct parameters set up for MLC_DEST and MLC_DIR.