So how do i tell what the SPS status is?, in the Modality Work list query. - DICOM
This is a discussion on So how do i tell what the SPS status is?, in the Modality Work list query. - DICOM ; How is the book-keeping on SPS done. Who sets the SPS status? is this
done through the GP-SPS SOP Class( even in a MPPS setting) . In any
case which actor in SWF profile is responsible for keeping or updating
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So how do i tell what the SPS status is?, in the Modality Work list query.
How is the book-keeping on SPS done. Who sets the SPS status? is this
done through the GP-SPS SOP Class( even in a MPPS setting) . In any
case which actor in SWF profile is responsible for keeping or updating
this information
If the answer is that the SPS status is calculated based on the
Modality generating the MPPS. In which case the assumption is 1-1
mapping between SPS and MPPS. How would you track in non 1-1 mapping.
Also how do you map re-scheduled and suspended states from MPPS
One last point, If we are to assume that MPPS mapping is used in foe
example a1-2 (SPS, MPPS) case, then is the assumption correct that the
status could go from SCHEDULED to INPROGRESS, to COMPLETED to
INPROGRESS again to COMPLETED for the next PPS.
Thanks in advance
Karan
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Re: So how do i tell what the SPS status is?, in the Modality Work list query.
Hi, Karan -
The "status" of the SPS is maintained by the RIS (IHE's Department
System Scheduler / Order Filler actor). The MPPS status (from one or
more PPS's) is just one of the factors used by the RIS to update the
SPS (i.e., determine when it should be removed from the MWL). Neither
IHE nor DICOM specify how the RIS makes this determination - this is
one of the ways in which RIS vendors differentiate their products, by
how well their workflow management algorithms match the users' use
cases.
One of the things I must emphasize is that there is no "SPS Status" in
the same sense as PPS Status (which is why I put quotes around
"status" in my first line). In, particular, an SPS is never
"Completed" - it is simply removed from the MWL responses when there
will be no further need for it to be referenced (e.g., for an Append
Case MPPS). See DICOM PS3.3-2007 Section C.4.10 Scheduled Procedure
Step Module (which I am extracting here):
>Scheduled Procedure Step Status (0040,0020) A real world condition that may affect the selection of the Scheduled Procedure Step. Defined Terms:
SCHEDULED - Procedure Step scheduled
ARRIVED - patient is available for the Scheduled Procedure Step
READY - all patient and other necessary preparation for this step has
been completed
STARTED - at least one Performed Procedure Step has been created that
references this Scheduled Procedure Step
As you can see from this list, the SPS status is dependent on many
real-world factors outside the purview of DICOM or IHE transactions.
- Harry Solomon
Interoperability Architect
GE Healthcare Integrated IT Solutions
