public IEnumerable <DicomCFindResponse> OnCFindRequest(DicomCFindRequest request)
{
var queryLevel = request.Level;
var matchingFiles = new List <string>();
IDicomImageFinderService finderService = QRServer.CreateFinderService;
// a QR SCP has to define in a DICOM Conformance Statement for which dicom tags it can query
// depending on the level of the query. Below there are only very few parameters evaluated.
switch (queryLevel)
{
case DicomQueryRetrieveLevel.Patient:
{
var patname = request.Dataset.Get(DicomTag.PatientName, string.Empty);
var patid = request.Dataset.Get(DicomTag.PatientID, string.Empty);
matchingFiles = finderService.FindPatientFiles(patname, patid);
}
break;
case DicomQueryRetrieveLevel.Study:
{
var patname = request.Dataset.Get(DicomTag.PatientName, string.Empty);
var patid = request.Dataset.Get(DicomTag.PatientID, string.Empty);
var accNr = request.Dataset.Get(DicomTag.AccessionNumber, string.Empty);
var studyUID = request.Dataset.Get(DicomTag.StudyInstanceUID, string.Empty);
matchingFiles = finderService.FindStudyFiles(patname, patid, accNr, studyUID);
}
break;
case DicomQueryRetrieveLevel.Series:
{
var patname = request.Dataset.Get(DicomTag.PatientName, string.Empty);
var patid = request.Dataset.Get(DicomTag.PatientID, string.Empty);
var accNr = request.Dataset.Get(DicomTag.AccessionNumber, string.Empty);
var studyUID = request.Dataset.Get(DicomTag.StudyInstanceUID, string.Empty);
var seriesUID = request.Dataset.Get(DicomTag.SeriesInstanceUID, string.Empty);
var modality = request.Dataset.Get(DicomTag.Modality, string.Empty);
matchingFiles = finderService.FindSeriesFiles(patname, patid, accNr, studyUID, seriesUID, modality);
}
break;
case DicomQueryRetrieveLevel.Image:
yield return(new DicomCFindResponse(request, DicomStatus.QueryRetrieveUnableToProcess));
yield break;
}
// now read the required dicomtags from the matching files and return as results
foreach (var matchingFile in matchingFiles)
{
var dicomFile = DicomFile.Open(matchingFile);
var result = new DicomDataset();
foreach (var requestedTag in request.Dataset)
{
// most of the requested DICOM tags are stored in the DICOM files and therefore saved into a database.
// you can fill the responses by selecting the values from the database.
// also be aware that there are some requested DicomTags like "ModalitiesInStudy" or "NumberOfStudyRelatedInstances"
// or "NumberOfPatientRelatedInstances" and so on which have to be calculated and cannot be read from a DICOM file.
if (dicomFile.Dataset.Contains(requestedTag.Tag))
{
dicomFile.Dataset.CopyTo(result, requestedTag.Tag);
}
// else if (requestedTag == DicomTag.NumberOfStudyRelatedInstances)
// {
// ... somehow calculate how many instances are stored within the study
// result.Add(DicomTag.NumberOfStudyRelatedInstances, number);
// } ....
else
{
result.Add(requestedTag);
}
}
yield return(new DicomCFindResponse(request, DicomStatus.Pending)
{
Dataset = result
});
}
yield return(new DicomCFindResponse(request, DicomStatus.Success));
}
public IEnumerable <DicomCFindResponse> OnCFindRequest(DicomCFindRequest request)
{
var queryLevel = request.Level;
DataTable resultsDt = null;
IDicomImageFinderService finderService = QRServer.CreateFinderService;
// a QR SCP has to define in a DICOM Conformance Statement for which dicom tags it can query
// depending on the level of the query. Below there are only very few parameters evaluated.
switch (queryLevel)
{
case DicomQueryRetrieveLevel.Patient:
{
var patname = request.Dataset.GetSingleValueOrDefault(DicomTag.PatientName, string.Empty);
var patid = request.Dataset.GetSingleValueOrDefault(DicomTag.PatientID, string.Empty);
resultsDt = finderService.FindPatientFiles(patname, patid);
}
break;
case DicomQueryRetrieveLevel.Study:
{
var patname = request.Dataset.GetSingleValueOrDefault(DicomTag.PatientName, string.Empty);
var patid = request.Dataset.GetSingleValueOrDefault(DicomTag.PatientID, string.Empty);
var accNr = request.Dataset.GetSingleValueOrDefault(DicomTag.AccessionNumber, string.Empty);
var studyUID = request.Dataset.GetSingleValueOrDefault(DicomTag.StudyInstanceUID, string.Empty);
var StudyDate = request.Dataset.GetSingleValueOrDefault(DicomTag.StudyDate, string.Empty);
var StudyTime = request.Dataset.GetSingleValueOrDefault(DicomTag.StudyTime, string.Empty);
resultsDt = finderService.FindStudyFiles(patname, patid, accNr, studyUID, StudyDate, StudyTime);
}
break;
case DicomQueryRetrieveLevel.Series:
{
var patname = request.Dataset.GetSingleValueOrDefault(DicomTag.PatientName, string.Empty);
var patid = request.Dataset.GetSingleValueOrDefault(DicomTag.PatientID, string.Empty);
var accNr = request.Dataset.GetSingleValueOrDefault(DicomTag.AccessionNumber, string.Empty);
var studyUID = request.Dataset.GetSingleValueOrDefault(DicomTag.StudyInstanceUID, string.Empty);
var seriesUID = request.Dataset.GetSingleValueOrDefault(DicomTag.SeriesInstanceUID, string.Empty);
var modality = request.Dataset.GetSingleValueOrDefault(DicomTag.Modality, string.Empty);
resultsDt = finderService.FindSeriesFiles(patname, patid, accNr, studyUID, seriesUID, modality);
}
break;
case DicomQueryRetrieveLevel.Image:
yield return(new DicomCFindResponse(request, DicomStatus.QueryRetrieveUnableToProcess));
yield break;
}
bool _autoValidateDICOM = Config.GetConfigBoolValueByName(Config.Key_Enable_DICOM_AutoValidate);
var columns = new List <string>();
foreach (DataColumn column in resultsDt.Columns)
{
columns.Add(column.ColumnName);
}
// now read the required dicomtags from the matching files and return as results
foreach (DataRow row in resultsDt.Rows)
{
var rtnResult = new DicomDataset();
rtnResult.AutoValidate = _autoValidateDICOM; //Not sure if we need this so se up as config value
//rtnResult.Clear(); //Could clear existing rather than create new.
foreach (var requestedTag in request.Dataset)
{
// most of the requested DICOM tags are stored in the DICOM files and therefore saved into a database.
// you can fill the responses by selecting the values from the database.
// also be aware that there are some requested DicomTags like "ModalitiesInStudy" or "NumberOfStudyRelatedInstances"
// or "NumberOfPatientRelatedInstances" and so on which have to be calculated and cannot be read from a DICOM file.
string columnName = requestedTag.Tag.DictionaryEntry.Keyword.ToString();
if (columns.Contains(columnName))
{
rtnResult.Add(requestedTag.Tag, row[columnName].ToString());
}
else
{
rtnResult.Add(requestedTag);
}
}
yield return(new DicomCFindResponse(request, DicomStatus.Pending)
{
Dataset = rtnResult
});
}
resultsDt.Dispose();
yield return(new DicomCFindResponse(request, DicomStatus.Success));
}