| DICOM PS3.18 2025e - Web Services |
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The Modality Performed Procedure Step Service enables a user agent to report progress on Performed Procedure Steps as executed by imaging modalities. This service corresponds to the DIMSE Modality Performed Procedure Step (MPPS) service as defined in Annex F of PS3.4 and has the same semantics. However, Notifications, as defined in Section F.9 in PS3.4, are not supported by this service.
To achieve notification-like behavior, it is suggested to mimic the approach taken in IHE's Scheduled Workflow integration profile [IHE RAD TF-1], where the Performed Procedure Step Manager Actor forwards the creation and updating of Modality Performed Procedure Steps to other interested Actors.
There is one resource defined by this service:
A Data Set containing the Attributes specified in Table F.7.2-1 “Modality Performed Procedure Step SOP Class N-CREATE, N-SET and Final State Attributes” in PS3.4.
In the Modality Performed Procedure Step Service, an MPPS is identified by an MPPS UID, which corresponds to the SOP Instance UID used in the PS3.4 MPPS Service, see e.g., Section F.7.2.1.2 in PS3.4.
The following URI Template variables are used in the definitions of the resources throughout Section 15.
{mppsUID} The UID of the MPPS.
The Modality Performed Procedure Step Service manages a number of MPPSs; its resources are given in Table 15.1.1-1.
The origin server shall support Query Parameters as required in Table 15.1.2-1.
The user agent shall supply in the request Query Parameters as required in Table 15.1.2-1.
The origin server shall support the media types specified as Default or Required in Table 15.1.3-1.
| DICOM PS3.18 2025e - Web Services |
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