/// <summary>Anonymizes a dataset witout cloning</summary>
/// <param name="dataset">The dataset to be altered</param>
public void AnonymizeInPlace(DicomDataset dataset)
{
var toRemove = new List <DicomItem>();
var itemList = dataset.ToArray();
foreach (var item in itemList)
{
var element = item as DicomElement;
if (element == null)
{
continue;
}
if (element.Tag.Equals(DicomTag.PatientName) && Profile.PatientName != null)
{
ReplaceString(dataset, element, Profile.PatientName);
}
else if (element.Tag.Equals(DicomTag.PatientID) && Profile.PatientID != null)
{
ReplaceString(dataset, element, Profile.PatientID);
}
var parenthesis = new[] { '(', ')' };
var tag = item.Tag.ToString().Trim(parenthesis);
var action = Profile.FirstOrDefault(pair => pair.Key.IsMatch(tag));
if (action.Key != null)
{
var vr = item.ValueRepresentation;
switch (action.Value)
{
case SecurityProfileActions.U: // UID
case SecurityProfileActions.C: // Clean
case SecurityProfileActions.D: // Dummy
if (vr == DicomVR.UI)
{
ReplaceUID(dataset, element);
}
else if (vr.IsString)
{
ReplaceString(dataset, element, "ANONYMOUS");
}
else
{
BlankElement(dataset, element);
}
break;
case SecurityProfileActions.K: // Keep
break;
case SecurityProfileActions.X: // Remove
toRemove.Add(element);
break;
case SecurityProfileActions.Z: // Zero-length
BlankElement(dataset, element);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}
dataset.Remove(item => toRemove.Contains(item));
}
/// <summary>Anonymizes a dataset witout cloning</summary>
/// <param name="dataset">The dataset to be altered</param>
public void AnonymizeInPlace(DicomDataset dataset)
{
var toRemove = new List <DicomItem>();
var itemList = dataset.ToArray();
var encoding = DicomEncoding.Default;
if (dataset.TryGetSingleValue <string>(DicomTag.SpecificCharacterSet, out var characterSet))
{
encoding = DicomEncoding.GetEncoding(characterSet);
}
foreach (var item in itemList)
{
var parenthesis = new[] { '(', ')' };
var tag = item.Tag.ToString().Trim(parenthesis);
var action = Profile.FirstOrDefault(pair => pair.Key.IsMatch(tag));
if (action.Key != null)
{
var vr = item.ValueRepresentation;
switch (action.Value)
{
case SecurityProfileActions.U: // UID
case SecurityProfileActions.C: // Clean
case SecurityProfileActions.D: // Dummy
if (vr == DicomVR.UI)
{
ReplaceUID(dataset, item);
}
else if (vr.ValueType == typeof(string))
{
ReplaceString(dataset, encoding, item, "ANONYMOUS");
}
else
{
BlankItem(dataset, item, true);
}
break;
case SecurityProfileActions.K: // Keep
break;
case SecurityProfileActions.X: // Remove
toRemove.Add(item);
break;
case SecurityProfileActions.Z: // Zero-length
BlankItem(dataset, item, false);
break;
default:
throw new ArgumentOutOfRangeException(nameof(action));
}
}
if (item.Tag.Equals(DicomTag.PatientName) && Profile.PatientName != null)
{
ReplaceString(dataset, encoding, item, Profile.PatientName);
}
else if (item.Tag.Equals(DicomTag.PatientID) && Profile.PatientID != null)
{
ReplaceString(dataset, encoding, item, Profile.PatientID);
}
}
dataset.Remove(item => toRemove.Contains(item));
}
