internal static IQueryable <WorklistItem> AddDateCondition(IQueryable <WorklistItem> exams, string dateCondition)
{
if (!string.IsNullOrEmpty(dateCondition) && dateCondition != "*")
{
var range = new DicomDateTime(DicomTag.ScheduledProcedureStepStartDate, dateCondition).Get <DicomDateRange>();
exams = exams.Where(x => range.Contains(x.ExamDateAndTime));
}
return(exams);
}
public IEnumerable <DicomDataset> FilterWorklistItems(DicomDataset request)
{
var exams = WorklistItems.AsQueryable();
if (request.TryGetSingleValue(DicomTag.PatientID, out string patientId) && !string.IsNullOrEmpty(patientId))
{
exams = exams.Where(x => x.PatientID == patientId);
}
if (request.TryGetSingleValue(DicomTag.PatientName, out string patientName))
{
exams = FilterWorklistItemsByName(exams, patientName);
}
DicomDataset procedureStep = null;
if (request.TryGetSequence(DicomTag.ScheduledProcedureStepSequence, out DicomSequence procedureStepSequence) &&
procedureStepSequence.Items.Any())
{
procedureStep = procedureStepSequence.First();
if (procedureStep.TryGetSingleValue(DicomTag.ScheduledStationAETitle, out string scheduledStationAet) && !string.IsNullOrEmpty(scheduledStationAet))
{
exams = exams.Where(x => x.ScheduledAET == scheduledStationAet);
}
if (procedureStep.TryGetSingleValue(DicomTag.Modality, out string modality) && !string.IsNullOrEmpty(modality))
{
exams = exams.Where(x => x.Modality == modality);
}
if (procedureStep.TryGetSingleValue(DicomTag.PerformingPhysicianName, out string performingPhysician) && !string.IsNullOrEmpty(performingPhysician))
{
exams = exams.Where(x => x.PerformingPhysician == performingPhysician);
}
if (procedureStep.TryGetSingleValue(DicomTag.ScheduledProcedureStepLocation, out string procedureStepLocation) && !string.IsNullOrEmpty(procedureStepLocation))
{
exams = exams.Where(x => x.ExamRoom == procedureStepLocation);
}
if (procedureStep.TryGetSingleValue(DicomTag.ScheduledProcedureStepDescription, out string procedureStepDescription) && !string.IsNullOrEmpty(procedureStepDescription))
{
exams = exams.Where(x => x.ExamDescription == procedureStepDescription);
}
if (procedureStep.TryGetSingleValue(DicomTag.ScheduledProcedureStepStartDateTime, out string scheduledStartDateTime) && !string.IsNullOrEmpty(scheduledStartDateTime))
{
if (scheduledStartDateTime != "*")
{
var dateRange = new DicomDateTime(DicomTag.ScheduledProcedureStepStartDate, scheduledStartDateTime).Get <DicomDateRange>();
exams = exams.Where(x => dateRange.Contains(x.ExamDateAndTime));
}
}
}
var results = exams.AsEnumerable();
foreach (var item in results)
{
var resultDataset = new DicomDataset();
AddIfExistsInRequest(resultDataset, request, DicomTag.AccessionNumber, item.AccessionNumber);
AddIfExistsInRequest(resultDataset, request, DicomTag.InstitutionName, item.HospitalName);
AddIfExistsInRequest(resultDataset, request, DicomTag.ReferringPhysicianName, item.ReferringPhysician);
AddIfExistsInRequest(resultDataset, request, DicomTag.PatientName, item.PatientName);
AddIfExistsInRequest(resultDataset, request, DicomTag.PatientID, item.PatientID);
AddIfExistsInRequest(resultDataset, request, DicomTag.PatientBirthDate, item.DateOfBirth);
AddIfExistsInRequest(resultDataset, request, DicomTag.PatientAge, item.Age);
AddIfExistsInRequest(resultDataset, request, DicomTag.PatientSex, item.Sex);
AddIfExistsInRequest(resultDataset, request, DicomTag.StudyInstanceUID, item.StudyUID);
AddIfExistsInRequest(resultDataset, request, DicomTag.RequestingPhysician, item.ReferringPhysician);
AddIfExistsInRequest(resultDataset, request, DicomTag.RequestedProcedureDescription, item.ExamDescription);
AddIfExistsInRequest(resultDataset, request, DicomTag.RequestedProcedureID, item.ProcedureID);
if (procedureStep != null)
{
var resultingSps = new DicomDataset();
AddIfExistsInRequest(resultingSps, procedureStep, DicomTag.ScheduledStationAETitle, item.ScheduledAET);
AddIfExistsInRequest(resultingSps, procedureStep, DicomTag.ScheduledProcedureStepStartDate, item.ExamDateAndTime);
AddIfExistsInRequest(resultingSps, procedureStep, DicomTag.ScheduledProcedureStepStartTime, item.ExamDateAndTime);
AddIfExistsInRequest(resultingSps, procedureStep, DicomTag.Modality, item.Modality);
AddIfExistsInRequest(resultingSps, procedureStep, DicomTag.ScheduledPerformingPhysicianName, item.PerformingPhysician);
AddIfExistsInRequest(resultingSps, procedureStep, DicomTag.ScheduledProcedureStepDescription, item.ExamDescription);
AddIfExistsInRequest(resultingSps, procedureStep, DicomTag.ScheduledProcedureStepID, item.ProcedureStepID);
AddIfExistsInRequest(resultingSps, procedureStep, DicomTag.ScheduledStationName, item.ExamRoom);
AddIfExistsInRequest(resultingSps, procedureStep, DicomTag.ScheduledProcedureStepLocation, item.ExamRoom);
resultDataset.Add(new DicomSequence(DicomTag.ScheduledProcedureStepSequence, resultingSps));
}
// Put blanks in for unsupported fields which are type 2 (i.e. must have a value even if NULL)
// In a real server, you may wish to support some or all of these, but they are not commonly supported
AddIfExistsInRequest(resultDataset, request, DicomTag.ReferencedStudySequence, new DicomDataset());
AddIfExistsInRequest(resultDataset, request, DicomTag.Priority, string.Empty);
AddIfExistsInRequest(resultDataset, request, DicomTag.PatientTransportArrangements, string.Empty);
AddIfExistsInRequest(resultDataset, request, DicomTag.AdmissionID, string.Empty);
AddIfExistsInRequest(resultDataset, request, DicomTag.CurrentPatientLocation, string.Empty);
AddIfExistsInRequest(resultDataset, request, DicomTag.ReferencedPatientSequence, new DicomDataset());
AddIfExistsInRequest(resultDataset, request, DicomTag.PatientWeight, string.Empty);
AddIfExistsInRequest(resultDataset, request, DicomTag.ConfidentialityConstraintOnPatientDataDescription, string.Empty);
// Send Reponse Back
yield return(resultDataset);
}
}