GetPresentationStateImageReferenceCount Method

Summary

Retrieves number of images (SOP Instances) that are referenced in an item under the "Referenced Series Sequence" (0008,1115) in the "Presentation State Module".

Syntax

C++/CLI

Java

public int GetPresentationStateImageReferenceCount( 
   DicomElement refSeriesSQItem 
)

public int getPresentationStateImageReferenceCount(DicomElement refSeriesSQItem)

public: 
int GetPresentationStateImageReferenceCount(  
   DicomElement^ refSeriesSQItem 
)

Parameters

refSeriesSQItem
An item element under the "Referenced Series Sequence" (0008,1115) in the "Presentation State Module".

Return Value

The number of referenced images.

Remarks

This method will return the number of images (SOP Instances) under the "Referenced Image Sequence" (0008,1115) in one of the items under "Referenced Series Sequence" (0008,1115) in the "Presentation State Module". Call this method along with GetPresentationStateImageReferenceSOPInstance in order to enumerate all the referenced images under the specified "Referenced Image Sequence".

Example

using Leadtools; 
using Leadtools.Dicom; 
 
 
public void DicomPresStateSample() 
{ 
   //Make sure to initialize the DICOM engine, this needs to be done only once  
   //In the whole application 
   DicomEngine.Startup(); 
   using (DicomDataSet dicomDataset = new DicomDataSet()) 
   { 
      dicomDataset.Initialize(DicomClassType.GrayscaleSoftcopyPresentationState, DicomDataSetInitializeType.ExplicitVRLittleEndian); 
      DicomPresentationStateInformation presentationStateInfo = new DicomPresentationStateInformation(); 
      presentationStateInfo.InstanceNumber = 1; 
      presentationStateInfo.PresentationLabel = "LABEL"; 
      presentationStateInfo.PresentationDescription = "Description"; 
      presentationStateInfo.PresentationCreator = "Creator"; 
      DicomDateValue presentationCreationDate = new DicomDateValue(); 
      presentationCreationDate.Year = 2004; 
      presentationCreationDate.Month = 1; 
      presentationCreationDate.Day = 8; 
      DicomTimeValue presentationCreationTime = new DicomTimeValue(); 
      presentationCreationTime.Hours = 2; 
      presentationCreationTime.Minutes = 3; 
      presentationCreationTime.Seconds = 5; 
      presentationStateInfo.PresentationCreationDate = presentationCreationDate; 
      presentationStateInfo.PresentationCreationTime = presentationCreationTime; 
      dicomDataset.SetPresentationStateInformation(presentationStateInfo); 
 
      DicomPresentationStateInformation presentationStateInfo1 = dicomDataset.GetPresentationStateInformation(); 
      Debug.Assert(presentationStateInfo1 != null); 
      Debug.Assert(presentationStateInfo1.InstanceNumber == 1); 
 
      //RemovePresStateImageRefBySOPInstance can be used to remove indivual referened images 
      dicomDataset.RemoveAllPresentationStateImageReferences(); 
      Debug.Assert(dicomDataset.GetPresentationStateImageReferenceCount(null) == 0); 
      // We can also load the dataset first and then call AddPresStateImageRefByDS 
      dicomDataset.AddPresentationStateImageReference(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "IMAGE3.dcm"), null, 0); 
 
      // We can also add the presentation state using a stream 
      using (FileStream stream = new FileStream(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "image3.dcm"), FileMode.Open)) 
      { 
         dicomDataset.AddPresentationStateImageReference(stream, null, 0); 
      } 
 
      //We can also use FindNextPresStateRefSeriesItem to iterate through all items 
      DicomElement item = dicomDataset.FindFirstPresentationStateReferencedSeriesItem(); 
 
      string imageRefSOPInstanceUID = dicomDataset.GetPresentationStateImageReferenceSOPInstance(item, 0); 
      Debug.Assert(imageRefSOPInstanceUID != null); 
      DicomElement item1 = dicomDataset.GetPresentationStateImageReference(imageRefSOPInstanceUID); 
      Debug.Assert(item1 != null); 
 
      dicomDataset.Save(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "PresentationState.dcm"), DicomDataSetSaveFlags.None); 
   } 
   DicomEngine.Shutdown(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}