Modality Performed Procedure Step Service
The Modality Performed Procedure Step Service, commonly known as MPPS, provides a mechanism for modalities to pass information about the imaging they are performing back to the RIS and/or PACS. There are 2 different types of message, and normally, one of each is sent, in order: An N-CREATE message, setting the status to “IN PROGRESS”. This is sent at the start of the procedure step. An N-SET message, setting the status to “COMPLETE”, which is sent at the end of the procedure step.