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dicom

What is the difference between c-find and c-get DIMSE?

All . Forgive me just a newbie in the DICOM. And was reading the DIMSE part of the DICOM standard. Found both c-find and c-get have the query/retrieve functionality against DICOM PACS server.

So I tried to summary the difference between them.

  1. C-get will trigger one or more c-store operation between SCU and SCP.
  2. C-get is the query for the image. But c-find is just the query for the attributes except the image.
  3. C-find would return multiple response messages if there exist multiple DICOM for the query criteria.

Please help to review my understanding. Correct me if there is any error. Thanks.

Solution

  • You use C-Find command for query and C-GET command for retrieval of DICOM storage instances (images, reports etc.). C-Get is performed in the single association (connection) but not commonly used. Instead, C-Move is used for retrieval of DICOM storage instances and which uses a different association (connection) and role reversal (SCP acts as SCU) to send the data to destination (caller or another SCP/Server)