C-Find (Request Worklist) for a specific PACS returns "Optional Keys Not Supported" and returns no data. I have also tried with empty string "" instead of null for patient id, existing patientid and so one with the same result. The request works for other PACS.
What is going on here and how can this be resolved?
The request code (using Fellow Oak DICOM fo-dicom):
var cfind = DicomCFindRequest.CreateWorklistQuery();
List<Dicom.DicomDataset> dslist = new List<Dicom.DicomDataset>();
cfind.OnResponseReceived = (DicomCFindRequest rq, DicomCFindResponse rp) =>
{
if (rp.Status != DicomStatus.Pending)
{
return;
}
dslist.Add(rp.Dataset);
};
var client = new DicomClient();
client.AddRequest(cfind);
try
{
await client.SendAsync(destip, port, useTLS, callingAE, calledAE);
}
catch (Exception e)
{
logger.Error(e);
}
This is the log.
2019-02-09 09:49:01.6540 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL -> Association request:
Calling AE Title: XXXXXXXXX
Called AE Title: TEST_01WL
Remote host: XXX.29.51.XXX
Remote port: 9895
Implementation Class: Implementation Class UID [1.3.6.1.4.1.30071.8]
Implementation Version: fo-dicom 4.0.0
Maximum PDU Length: 16384
Async Ops Invoked: 1
Async Ops Performed: 1
Presentation Contexts: 1
Presentation Context: 1 [Proposed]
Abstract Syntax: Modality Worklist Information Model - FIND
Transfer Syntax: Implicit VR Little Endian: Default Transfer Syntax for
DICOM
2019-02-09 09:49:01.6540 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL <- Association accept:
Calling AE Title: XXXXXXXXX
Called AE Title: TEST_01WL
Remote host: XXX.29.51.XXX
Remote port: 9895
Implementation Class: Unknown [1.2.752.24.3.3.25.7]
Implementation Version: WIMWLSCP_20_1
Maximum PDU Length: 28672
Async Ops Invoked: 1
Async Ops Performed: 1
Presentation Contexts: 1
Presentation Context: 1 [Accept]
Abstract Syntax: Modality Worklist Information Model - FIND
Transfer Syntax: Implicit VR Little Endian: Default Transfer Syntax for
DICOM
2019-02-09 09:49:01.7580 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL -> C-Find request [2]
2019-02-09 09:49:01.8240 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL <- C-Find response [2]: Optional Keys Not Supported
2019-02-09 09:49:01.8240 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL <- C-Find response [2]: Optional Keys Not Supported
2019-02-09 09:49:01.8240 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL <- C-Find response [2]: Optional Keys Not Supported
2019-02-09 09:49:01.8240 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL <- C-Find response [2]: Optional Keys Not Supported
2019-02-09 09:49:01.8240 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL <- C-Find response [2]: Optional Keys Not Supported
2019-02-09 09:49:01.8240 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL <- C-Find response [2]: Success
2019-02-09 09:49:01.8830 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL -> Association release request
2019-02-09 09:49:01.8830 INFO Dicom.Log.NLogManager+NLogger.Log TEST_01WL <- Association release response
2019-02-09 09:49:01.8830 INFO Dicom.Log.NLogManager+NLogger.Log Connection closed
Just to add what the status means: It tells you that your request specified matching keys which were not supported by the Worklist-SCP. This means that you might receive worklist records in the response which do not match your query criteria and should have been filtered out by the SCP.