private bool LoadTemplate(DvtkData.Dimse.DataSet dataset)
{
if (dataset == null)
{
return(false);
}
// try to find the template tag in the dataset
foreach (DicomComparisonTag comparisonTag in this._template.ComparisonTags)
{
DvtkData.Dimse.Tag tag = comparisonTag.Tag;
DvtkData.Dimse.Tag parentSequenceTag = comparisonTag.ParentSequenceTag;
System.String attributeValue = System.String.Empty;
if (parentSequenceTag != Tag.UNDEFINED)
{
DvtkData.Dimse.Attribute sequenceAttribute = dataset.GetAttribute(parentSequenceTag);
if ((sequenceAttribute != null) &&
(sequenceAttribute.ValueRepresentation == DvtkData.Dimse.VR.SQ))
{
SequenceOfItems sequenceOfItems = (SequenceOfItems)sequenceAttribute.DicomValue;
if (sequenceOfItems.Sequence.Count == 1)
{
SequenceItem item = sequenceOfItems.Sequence[0];
if (item != null)
{
DvtkData.Dimse.Attribute attribute = item.GetAttribute(tag);
attributeValue = GetAttributeValue(attribute);
}
}
}
}
else
{
DvtkData.Dimse.Attribute attribute = dataset.GetAttribute(tag);
attributeValue = GetAttributeValue(attribute);
}
if (attributeValue != System.String.Empty)
{
comparisonTag.DataFormat.FromDicomFormat(attributeValue);
}
}
return(true);
}
/// <summary>
/// Create a Worklist Query Dataset from the given DCM file. We assume that the DCM file
/// contains the appropriate MWL Query Dataset. If the scheduled procedure step start date
/// is present in the DCM file, it will be overwritten with the value given by scheduledProcedureStepStartDate.
/// </summary>
/// <param name="mwlQueryDcmFilename">MWL Query Dcm Filename.</param>
/// <param name="userDefinedScheduledProcedureStepStartDate">User Defined Scheduled Procedure Step Start Date.</param>
/// <returns>DvtkData.Dimse.DataSet - Modality Worklist Query Dataset.</returns>
public static DvtkData.Dimse.DataSet CreateWorklistQueryDataset(System.String mwlQueryDcmFilename, System.String userDefinedScheduledProcedureStepStartDate)
{
// Read the DCM file
DataSet dataset = Dvtk.DvtkDataHelper.ReadDataSetFromFile(mwlQueryDcmFilename);
dataset.IodId = "Modality Worklist Information Model - FIND SOP Class";
// Update the scheduled procedure step start date (if present)
if (userDefinedScheduledProcedureStepStartDate != System.String.Empty)
{
DvtkData.Dimse.Attribute scheduledProcedureStepSequence = dataset.GetAttribute(Tag.SCHEDULED_PROCEDURE_STEP_SEQUENCE);
if (scheduledProcedureStepSequence != null)
{
SequenceOfItems sequenceOfItems = (SequenceOfItems)scheduledProcedureStepSequence.DicomValue;
if (sequenceOfItems.Sequence.Count == 1)
{
SequenceItem queryItem = sequenceOfItems.Sequence[0];
// Try to get the Scheduled Procedure Step Start Date
// - update it if there is a value defined in the dataset
DvtkData.Dimse.Attribute scheduledProcedureStepStartDate = queryItem.GetAttribute(Tag.SCHEDULED_PROCEDURE_STEP_START_DATE);
if ((scheduledProcedureStepStartDate != null) &&
(scheduledProcedureStepStartDate.Length != 0))
{
// Remove the existing attribute
queryItem.Remove(scheduledProcedureStepStartDate);
// Modify value to today's date
queryItem.AddAttribute(Tag.SCHEDULED_PROCEDURE_STEP_START_DATE.GroupNumber,
Tag.SCHEDULED_PROCEDURE_STEP_START_DATE.ElementNumber,
DvtkData.Dimse.VR.DA,
userDefinedScheduledProcedureStepStartDate);
}
}
}
}
return(dataset);
}
private static void AddTagsToDataset(TagValueCollection tags, DvtkData.Dimse.DataSet dataset)
{
// iterate over the tags
foreach (DicomTagValue tag in tags)
{
if (tag.ParentSequenceTag != Tag.UNDEFINED)
{
// try to get the sequence tag in the dataset
DvtkData.Dimse.Attribute sequenceAttribute = dataset.GetAttribute(tag.ParentSequenceTag);
if ((sequenceAttribute != null) &&
(sequenceAttribute.ValueRepresentation == DvtkData.Dimse.VR.SQ))
{
SequenceOfItems sequenceOfItems = (SequenceOfItems)sequenceAttribute.DicomValue;
if (sequenceOfItems.Sequence.Count == 1)
{
SequenceItem item = sequenceOfItems.Sequence[0];
if (item != null)
{
VR vr = VR.UN;
// try to get the attribute in the item
DvtkData.Dimse.Attribute attribute = item.GetAttribute(tag.Tag);
if (attribute != null)
{
vr = attribute.ValueRepresentation;
item.Remove(attribute);
}
// add the query value
item.AddAttribute(tag.Tag.GroupNumber,
tag.Tag.ElementNumber,
vr,
tag.Value);
}
}
}
}
else
{
VR vr = VR.UN;
// try to get the attribute in the dataset
DvtkData.Dimse.Attribute attribute = dataset.GetAttribute(tag.Tag);
if (attribute != null)
{
vr = attribute.ValueRepresentation;
dataset.Remove(attribute);
}
// special check for the SPECIFIC CHARACTER SET attribute
if (tag.Tag == Tag.SPECIFIC_CHARACTER_SET)
{
vr = VR.CS;
}
// add the query value
dataset.AddAttribute(tag.Tag.GroupNumber,
tag.Tag.ElementNumber,
vr,
tag.Value);
}
}
}
private System.String GetAttributeValue(DvtkData.Dimse.Attribute attribute)
{
System.String attributeValue = System.String.Empty;
if ((attribute == null) ||
(attribute.Length == 0))
{
return(attributeValue);
}
switch (attribute.ValueRepresentation)
{
case VR.AE:
{
ApplicationEntity applicationEntity = (ApplicationEntity)attribute.DicomValue;
attributeValue = applicationEntity.Values[0];
break;
}
case VR.AS:
{
AgeString ageString = (AgeString)attribute.DicomValue;
attributeValue = ageString.Values[0];
break;
}
case VR.CS:
{
CodeString codeString = (CodeString)attribute.DicomValue;
attributeValue = codeString.Values[0];
break;
}
case VR.DA:
{
Date date = (Date)attribute.DicomValue;
attributeValue = date.Values[0];
break;
}
case VR.DS:
{
DecimalString decimalString = (DecimalString)attribute.DicomValue;
attributeValue = decimalString.Values[0];
break;
}
case VR.DT:
{
DvtkData.Dimse.DateTime dateTime = (DvtkData.Dimse.DateTime)attribute.DicomValue;
attributeValue = dateTime.Values[0];
break;
}
case VR.IS:
{
IntegerString integerString = (IntegerString)attribute.DicomValue;
attributeValue = integerString.Values[0];
break;
}
case VR.LO:
{
LongString longString = (LongString)attribute.DicomValue;
attributeValue = longString.Values[0];
break;
}
case VR.LT:
{
LongText longText = (LongText)attribute.DicomValue;
attributeValue = longText.Value;
break;
}
case VR.PN:
{
PersonName personName = (PersonName)attribute.DicomValue;
attributeValue = personName.Values[0];
break;
}
case VR.SH:
{
ShortString shortString = (ShortString)attribute.DicomValue;
attributeValue = shortString.Values[0];
break;
}
case VR.SQ:
{
// Special case looking for the SOP Class UID
SequenceOfItems sequenceOfItems = (SequenceOfItems)attribute.DicomValue;
if ((sequenceOfItems != null) &&
(sequenceOfItems.Sequence.Count == 1))
{
// Special case looking for the SOP Class UID
SequenceItem item = sequenceOfItems.Sequence[0];
attribute = item.GetAttribute(new Tag(0x0008, 0x1150));
attributeValue = GetAttributeValue(attribute);
}
break;
}
case VR.ST:
{
ShortText shortText = (ShortText)attribute.DicomValue;
attributeValue = shortText.Value;
break;
}
case VR.TM:
{
Time time = (Time)attribute.DicomValue;
attributeValue = time.Values[0];
break;
}
case VR.UI:
{
UniqueIdentifier uniqueIdentifier = (UniqueIdentifier)attribute.DicomValue;
attributeValue = uniqueIdentifier.Values[0];
break;
}
default:
break;
}
return(attributeValue);
}
