DICOM PS3.18 2024b - Web Services

8.3.4.5 Empty Value Matching

A single parameter specifies whether Empty Value Matching is to be performed.

This parameter is optional for the user agent.

This parameter is optional for the origin server.

If this parameter is not present its value is "false".

emptyvaluematching = "emptyvaluematching" "=" ("true" / "false")

If the value is "false", then the search shall be performed without Empty Value Matching.

If the value is "true" and the origin server supports Empty Value Matching, then the search shall be performed with Empty Value Matching Attributes as specified in Section C.2.2.2.7 “Empty Value Matching” in PS3.4 and shall be documented in the Conformance Statement and, if the service supports it, the Retrieve Capabilities response.

If the value is "true" and the origin server does not support Empty Value Matching, then:

DICOM PS3.18 2024b - Web Services