MedicalViewerSeriesStack Class

Summary
The MedicalViewerSeriesStack represents a stack of images.
Syntax
C#
C++/CLI
public class MedicalViewerSeriesStack 
            public ref class MedicalViewerSeriesStack  
Remarks

This class is used for the output of the MedicalViewerSeriesManager.Sort method, which holds a sorted stack. Each image in the stack is sorted based on its actual real world position so it is displayed correctly. This also makes it easier for the 3D toolkit to create an accurate 3D object.

Example
C#
using Leadtools; 
using Leadtools.Dicom; 
using Leadtools.Medical3D; 
using Leadtools.Codecs; 
using Leadtools.MedicalViewer; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Annotations.Engine; 
using Leadtools.Annotations.Designers; 
 
class MedicalViewerSeriesManagerFrom : Form 
{ 
   DicomElement _studyElement; 
   DicomElement _seriesElement; 
   MedicalViewerSeriesManager _seriesManager; 
   MedicalViewerSeriesManager _seriesManager512; 
   List<MedicalViewerImageData> _imageDataList; 
   double[] doubleArray; 
   DicomElement patientElement; 
   string referenceUID; 
   DicomElement imageElement; 
   MedicalViewer _medicalViewer; 
 
   public MedicalViewerSeriesManagerFrom() 
   { 
 
   } 
 
   void MedicalViewerSeriesManagerFrom_SizeChanged(object sender, EventArgs e) 
   { 
      _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom); 
   } 
 
   public MedicalViewerSeriesManagerFrom(MedicalViewerSeriesManager output) 
   { 
      RasterCodecs _codecs = new RasterCodecs(); 
 
      this.SizeChanged += new EventHandler(MedicalViewerSeriesManagerFrom_SizeChanged); 
 
      // Create the medical viewer and adjust the size and the location. 
      _medicalViewer = new MedicalViewer(1, 2); 
      _medicalViewer.Location = new Point(0, 0); 
      _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom); 
 
      _seriesManager = output; 
 
      MedicalViewerMultiCell cell = new MedicalViewerMultiCell(null, true, 1, 1); 
 
      int index; 
      int count = output.Stacks[0].Items.Count; 
      CodecsImageInfo codecsInformation; 
 
      MedicalViewerImageInformation[] imageInformation = new MedicalViewerImageInformation[count]; 
 
      for (index = 0; index < count; index++) 
      { 
         codecsInformation = _codecs.GetInformation((string)(output.Stacks[0].Items[index].Data), true); 
 
         imageInformation[index] = new MedicalViewerImageInformation(); 
         imageInformation[index].ImageHeight = codecsInformation.Width; 
         imageInformation[index].ImageWidth = codecsInformation.Width; 
         imageInformation[index].XResolution = codecsInformation.XResolution; 
         imageInformation[index].YResolution = codecsInformation.YResolution; 
      } 
 
      cell.FramesRequested += new EventHandler<MedicalViewerRequestedFramesInformationEventArgs>(cell_FramesRequested); 
      FormClosing += new FormClosingEventHandler(MedicalViewerSeriesManagerFrom_FormClosing); 
      cell.EnableLowMemoryUsage(2, count, imageInformation); 
 
      _medicalViewer.Cells.Add(cell); 
 
 
      cell.PixelSpacing = output.Stacks[0].PixelSpacing; 
      cell.ImageOrientation = output.Stacks[0].Items[0].ImageOrientationArray; 
      cell.FrameOfReferenceUID = output.Stacks[0].Items[0].FrameOfReferenceUID; 
 
      for (index = 0; index < count; index++) 
      { 
         cell.SetImagePosition(index, output.Stacks[0].Items[index].ImagePosition, (index == count - 1)); 
      } 
 
 
      // add some actions that will be used to change the properties of the images inside the control. 
      cell.AddAction(MedicalViewerActionType.WindowLevel); 
      cell.AddAction(MedicalViewerActionType.Alpha); 
      cell.AddAction(MedicalViewerActionType.Offset); 
      cell.AddAction(MedicalViewerActionType.Stack); 
 
      // assign the added actions to a mouse button, meaning that when the user clicks and drags the mouse button, the associated action will be activated. 
      cell.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active); 
      cell.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active); 
      cell.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active); 
      cell.SetAction(MedicalViewerActionType.Stack, MedicalViewerMouseButtons.Wheel, MedicalViewerActionFlags.Active); 
 
      // adjust some properties of the cell and add some tags. 
      _medicalViewer.Cells[0].SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448"); 
      _medicalViewer.Cells[0].SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame); 
      _medicalViewer.Cells[0].SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale); 
      _medicalViewer.Cells[0].SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData); 
      _medicalViewer.Cells[0].SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView); 
      _medicalViewer.Cells[0].SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.UserData, "Echo number = " + output.Stacks[0].EchoNumber.ToString()); 
 
      Controls.Add(_medicalViewer); 
      _medicalViewer.Dock = DockStyle.Fill; 
   } 
 
   void cell_FramesRequested(object sender, MedicalViewerRequestedFramesInformationEventArgs e) 
   { 
      MedicalViewerMultiCell cell = (MedicalViewerMultiCell)(sender); 
      RasterCodecs _codecs = new RasterCodecs(); 
      int i; 
      RasterImage image; 
      string fileName; 
 
      if (e.RequestedFramesIndexes.Length > 0) 
      { 
         fileName = (string)(_seriesManager.Stacks[0].Items[e.RequestedFramesIndexes[0]].Data); 
         image = _codecs.Load(fileName); 
      } 
      else 
         return; 
 
      for (i = 1; i < e.RequestedFramesIndexes.Length; i++) 
      { 
         fileName = (string)(_seriesManager.Stacks[0].Items[e.RequestedFramesIndexes[i]].Data); 
         image.AddPage(_codecs.Load(fileName)); 
      } 
 
      cell.SetRequestedImage(image, e.RequestedFramesIndexes, MedicalViewerSetImageOptions.Insert); 
   } 
 
   void  MedicalViewerSeriesManagerFrom_FormClosing(object sender, FormClosingEventArgs e) 
   { 
   } 
 
   // Find the study using the Study instance UID, and return it's DicomElement if the study is found 
   private DicomElement FindStudy(DicomDataSet ds, string studyInstanceUID) 
   { 
      // get the parent element. 
      DicomElement patientElement = ds.GetFirstKey(null, true); 
      DicomElement studyElement = null; 
      DicomElement studyInformationElement = null; 
      string studyID; 
 
      studyElement = ds.GetChildKey(patientElement); 
      studyElement = ds.GetChildElement(studyElement, true); 
 
      while (studyElement != null) 
      { 
         studyInformationElement = ds.FindFirstElement(studyElement, DicomTag.StudyInstanceUID, true); 
 
         if (studyInformationElement != null) 
         { 
            studyID = ds.GetConvertValue(studyInformationElement); 
 
            if (studyID == studyInstanceUID) 
               return studyInformationElement; 
         } 
 
         studyElement = ds.GetNextKey(studyElement, true); 
         studyElement = ds.GetChildElement(studyElement, true); 
      } 
      return null; 
   } 
 
   // Find the series using the Series instance UID, and return it's DicomElement if the series is found 
   private DicomElement FindSeries(DicomDataSet ds, DicomElement studyElement, string seriesInstanceUID) 
   { 
      DicomElement seriesElement = null; 
      DicomElement seriesInformationElement = null; 
      string seriesID; 
 
      seriesElement = ds.GetChildKey(studyElement); 
      seriesElement = ds.GetChildElement(seriesElement, true); 
 
      while (seriesElement != null) 
      { 
         seriesInformationElement = ds.FindFirstElement(seriesElement, 
                                                        DicomTag.SeriesInstanceUID, 
                                                        true); 
 
         if (seriesInformationElement != null) 
         { 
            seriesID = ds.GetConvertValue(seriesInformationElement); 
 
            if (seriesID == seriesInstanceUID) 
               return seriesInformationElement; 
         } 
 
         seriesElement = ds.GetNextKey(seriesElement, true); 
         seriesElement = ds.GetChildElement(seriesElement, true); 
      } 
      return null; 
   } 
 
   // return the first frame file name of the series. 
   private string GetFirstImageName(DicomDataSet ds, DicomElement seriesElement, string directoryPath, out DicomElement imageElement) 
   { 
      DicomElement imageIDElement = null; 
 
      imageElement = ds.GetChildKey(seriesElement); 
      imageElement = ds.GetChildElement(imageElement, true); 
 
      while (imageElement != null) 
      { 
         imageIDElement = ds.FindFirstElement(imageElement, 
                                            DicomTag.ReferencedFileID, 
                                            true); 
 
         if (imageIDElement != null) 
         { 
            return directoryPath + "\\" + ds.GetConvertValue(imageIDElement); 
         } 
 
 
      } 
 
      return ""; 
   } 
 
   // return the next frame file name of the series. 
   private string GetNextImageName(DicomDataSet ds, string directoryPath, ref DicomElement imageElement) 
   { 
      DicomElement nextImageElement = null; 
 
      imageElement = ds.GetNextKey(imageElement, true); 
      imageElement = ds.GetChildElement(imageElement, true); 
 
      while (imageElement != null) 
      { 
         nextImageElement = ds.FindFirstElement(imageElement, 
                                            DicomTag.ReferencedFileID, 
                                            true); 
 
         if (imageElement != null) 
         { 
            DicomElement echoElement = ds.FindFirstElement(imageElement, 
                                              DicomTag.EchoNumber, 
                                              true); 
 
            return directoryPath + "\\" + ds.GetConvertValue(nextImageElement); 
         } 
      } 
 
      return ""; 
   } 
 
 
   private bool AddImageToImageArray(DicomDataSet ds, int index, string imagePath, out int echoNumber) 
   { 
      echoNumber = -1; 
 
      MedicalViewerImageData imageData = new MedicalViewerImageData(); 
 
      patientElement = ds.FindFirstElement(null, 
                                           DicomTag.ImagePositionPatient, 
                                           true); 
 
      doubleArray = ds.GetDoubleValue(patientElement, 0, 3); 
 
      imageData.ImagePosition = Point3D.FromDoubleArray(doubleArray); 
      imageData.Data = imagePath; 
 
      imageData.EchoNumber = echoNumber; 
 
      patientElement = ds.FindFirstElement(null, 
                                          DicomTag.FrameOfReferenceUID, 
                                          true); 
 
      referenceUID = ds.GetConvertValue(patientElement); 
 
      imageData.FrameOfReferenceUID = referenceUID; 
 
      patientElement = ds.FindFirstElement(null, 
                                          DicomTag.ImageOrientationPatient, 
                                          true); 
 
      imageData.ImageOrientation = ds.GetConvertValue(patientElement); 
 
      patientElement = ds.FindFirstElement(null, 
                                           DicomTag.PixelSpacing, 
                                           true); 
 
      doubleArray = ds.GetDoubleValue(patientElement, 0, 2); 
      imageData.PixelSpacing = new Point2D((float)doubleArray[0], (float)doubleArray[1]); 
 
      _imageDataList.Add(imageData); 
 
      return true; 
 
   } 
 
   public MedicalViewerSeriesManager LoadJamesHead() 
   { 
      DicomEngine.Startup(); 
      DicomDataSet ds = new DicomDataSet(); 
      ds.Load(Path.Combine(LEAD_VARS.JamesCTDir , "DICOMDIR"), DicomDataSetLoadFlags.None); 
      string directoryPath = LEAD_VARS.JamesCTDir;///*LeadtoolsExamples.Common.ImagesPath.Path*/ Path.Combine(LEAD_VARS.ImagesDir, @"\Miller James-CT Head full Study\"); 
 
      string studyInstanceUID = "1.3.12.2.1107.5.1.4.50772.30000009122208074910900000022"; 
      string seriesInstanceUID = "1.3.12.2.1107.5.1.4.50772.30000009122208215356200001997"; 
 
      _studyElement = FindStudy(ds, studyInstanceUID); 
      _seriesElement = FindSeries(ds, _studyElement, seriesInstanceUID); 
 
      int count = 256; 
 
      _seriesManager = new MedicalViewerSeriesManager(); 
      _imageDataList = new List<MedicalViewerImageData>(); 
 
 
      DicomDataSet dicomDataSet; 
 
      int imageIndex; 
      string imagePath; 
      int echoNumber = 0; 
      imagePath = GetFirstImageName(ds, _seriesElement, directoryPath, out imageElement); 
      for (imageIndex = 0; imageIndex < count; imageIndex++) 
      { 
         try 
         { 
            dicomDataSet = new DicomDataSet(); 
            dicomDataSet.Load(imagePath, DicomDataSetLoadFlags.None); 
            AddImageToImageArray(dicomDataSet, imageIndex, imagePath, out echoNumber); 
            dicomDataSet.Dispose(); 
 
            imagePath = GetNextImageName(ds, directoryPath, ref imageElement); 
 
         } 
         catch (System.Exception exception) 
         { 
            System.Diagnostics.Debug.Assert(false, exception.Message); 
            throw; 
         } 
      } 
 
 
 
      _seriesManager.Sort(_imageDataList); 
      DicomEngine.Shutdown(); 
 
      return _seriesManager; 
   } 
 
 
   public MedicalViewerSeriesManager LoadJamesHead512() 
   { 
      DicomEngine.Startup(); 
      DicomDataSet ds = new DicomDataSet(); 
      ds.Load(Path.Combine(LEAD_VARS.JamesCTDir, "DICOMDIR"), DicomDataSetLoadFlags.None); 
      string directoryPath = LEAD_VARS.JamesCTDir; 
 
      string studyInstanceUID = "1.3.12.2.1107.5.1.4.50772.30000009122208074910900000022"; 
      string seriesInstanceUID = "1.3.12.2.1107.5.1.4.50772.30000009122208215356200002254"; 
 
      _studyElement = FindStudy(ds, studyInstanceUID); 
      _seriesElement = FindSeries(ds, _studyElement, seriesInstanceUID); 
 
      int count = 512; 
 
      _seriesManager512 = new MedicalViewerSeriesManager(); 
      _imageDataList = new List<MedicalViewerImageData>(); 
 
 
      DicomDataSet dicomDataSet; 
 
      int imageIndex; 
      string imagePath; 
      int echoNumber = 0; 
      imagePath = GetFirstImageName(ds, _seriesElement, directoryPath, out imageElement); 
      for (imageIndex = 0; imageIndex < count; imageIndex++) 
      { 
         try 
         { 
            dicomDataSet = new DicomDataSet(); 
            dicomDataSet.Load(imagePath, DicomDataSetLoadFlags.None); 
            AddImageToImageArray(dicomDataSet, imageIndex, imagePath, out echoNumber); 
            dicomDataSet.Dispose(); 
 
            imagePath = GetNextImageName(ds, directoryPath, ref imageElement); 
 
         } 
         catch (System.Exception exception) 
         { 
            System.Diagnostics.Debug.Assert(false, exception.Message); 
            throw; 
         } 
      } 
 
 
 
      _seriesManager512.Sort(_imageDataList); 
      DicomEngine.Shutdown(); 
 
      return _seriesManager512; 
   } 
 
} 
 
 
 
MedicalViewerSeriesManagerFrom GetMedicalControlForReverseExample() 
{ 
   MedicalViewerSeriesManagerFrom form = new MedicalViewerSeriesManagerFrom(); 
   MedicalViewerSeriesManager output = form.LoadJamesHead(); 
 
   return new MedicalViewerSeriesManagerFrom(output); 
} 
//  
public void MedicalViewerSeriesManagerLoadingExample() 
{ 
   MedicalViewerSeriesManagerFrom myForm = GetMedicalControlForReverseExample(); 
   myForm.ShowDialog(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 23.0.2024.2.29
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2024 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.MedicalViewer Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.