IHERO UseCase 2011 AaronPhillips

1. Proposed Workitem: Reference point transfer, CT date/time transfer

• Proposal Editor: Aaron Phillips, aaron.phillips@midcentral.co.nz, 646-350-8434
• Editor: Colin Field, but needs somebody else
• Date: N/A (Wiki keeps history)
• Version: N/A (Wiki keeps history)
• Domain: Radiation Oncology

2. The Problem

2 issues:

1. The reference points/markers created in Siemens syngo Dosimetrist do not transfer to CMS Monaco.
2. CMS XiO does not export time/date of CT study sets causing warning/error messages in Siemens syngo RTT.

3. Key Use Case

For item 1 above when starting a plan in Monaco not patient reference point is seen. it is therefore difficult to transfer/verify the plan position back to the actual patient and their tattoos/reference marks as there is no relative position from Monaco to these marks. for item 2 above - each fraction of imaging on syngo RTT you receive a warning that there may be data inconsistencies as no time/date data is available in reference data set (CTs from XiO). in addition to this if there are multiple reference datasets from multiple phases of treatment or offline adaptive RT then it is difficult/impossible to confirm which dataset should be used as a reference as not date information is available - quite dangerous.

4. Standards & Systems

Issue 1 Siemens Syngo Dosimetrist & CMS Monaco
Issue 2 CMS XiO and Siemens Syngo RTT
Sorry - the exact DICOM standard used by each is not known to me.

5. Discussion

<Include additional discussion or consider a few details which might be useful for the detailed proposal>

<Why IHE would be a good venue to solve the problem and what you think IHE should do to solve it.>

<What might the IHE technical approach be? Existing Actors? New Transactions? Additional Profiles?>

<What are some of the risks or open issues to be addressed?>