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[clitk.git] / segmentation / clitkExtractLymphStation_2RL.txx
index ee9d2f3a221fcb1929ef66f3536789c0a5250ab6..7332dee29921c804c621c161e44127f17bbdc66c 100644 (file)
@@ -17,12 +17,6 @@ void
 clitk::ExtractLymphStationsFilter<ImageType>::
 ExtractStation_2RL_SetDefaultValues()
 {
-  SetFuzzyThreshold("2RL", "CommonCarotidArtery", 0.7);
-  SetFuzzyThreshold("2RL", "BrachioCephalicArtery", 0.7);
-  SetFuzzyThreshold("2RL", "BrachioCephalicVein", 0.3);
-  SetFuzzyThreshold("2RL", "Aorta", 0.7);
-  SetFuzzyThreshold("2RL", "SubclavianArteryRight", 0.5);
-  SetFuzzyThreshold("2RL", "SubclavianArteryLeft", 0.8);
 }
 //--------------------------------------------------------------------
 
@@ -33,216 +27,42 @@ void
 clitk::ExtractLymphStationsFilter<TImageType>::
 ExtractStation_2RL()
 {
-  if (CheckForStation("2RL")) {
-    ExtractStation_2RL_SI_Limits();
-    ExtractStation_2RL_Post_Limits();
+  if ((!CheckForStation("2R")) && (!CheckForStation("2L"))) return;
 
-    ExtractStation_2RL_Ant_Limits2();
-    //ExtractStation_2RL_Ant_Limits(); 
+  StartNewStep("Stations 2RL");
+  StartSubStep(); 
 
-    ExtractStation_2RL_LR_Limits(); 
-    ExtractStation_2RL_Remove_Structures(); 
-    ExtractStation_2RL_SeparateRL(); 
+  // Get the current support 
+  StartNewStep("[Station 2RL] Get the current 2RL suppport");
+  m_ListOfStations["2R"] = m_ListOfSupports["S2R"];
+  m_ListOfStations["2L"] = m_ListOfSupports["S2L"];
+  StopCurrentStep<MaskImageType>(m_ListOfStations["2R"]);
     
-    // Store image filenames into AFDB 
-    writeImage<MaskImageType>(m_ListOfStations["2R"], "seg/Station2R.mhd");
-    writeImage<MaskImageType>(m_ListOfStations["2L"], "seg/Station2L.mhd");
-    GetAFDB()->SetImageFilename("Station2R", "seg/Station2R.mhd"); 
-    GetAFDB()->SetImageFilename("Station2L", "seg/Station2L.mhd"); 
-    WriteAFDB(); 
-  }
-}
-//--------------------------------------------------------------------
-
-
-//--------------------------------------------------------------------
-template <class ImageType>
-void 
-clitk::ExtractLymphStationsFilter<ImageType>::
-ExtractStation_2RL_SI_Limits() 
-{
-  // Apex of the chest or Sternum & Carina.
-  StartNewStep("[Station 2RL] Inf/Sup limits with Sternum and TopOfAorticArch/CaudalMarginOfLeftBrachiocephalicVein");
-
-  /* Rod says: "For the inferior border, unlike in Atlas – UM, there
-   is now a difference between 2R and 2L.  2R stops at the
-   intersection of the caudal margin of the innominate vein with the
-   trachea.  2L extends less inferiorly to the superior border of the
-   aortic arch." */
-
-  /* Get TopOfAorticArch and CaudalMarginOfLeftBrachiocephalicVein 
-     - TopOfAorticArch -> can be obtain from Aorta -> most sup part.  
-     - CaudalMarginOfLeftBrachiocephalicVein -> must inf part of BrachicephalicVein
-   */
-  MaskImagePointer Aorta = GetAFDB()->template GetImage<MaskImageType>("Aorta");
-  MaskImagePointType p = Aorta->GetOrigin(); // initialise to avoid warning 
-  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(Aorta, GetBackgroundValue(), 2, false, p);
-  double TopOfAorticArchZ=p[2];
-  GetAFDB()->SetDouble("TopOfAorticArchZ", TopOfAorticArchZ);
-
-  MaskImagePointer BrachioCephalicVein = GetAFDB()->template GetImage<MaskImageType>("BrachioCephalicVein");
-  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(BrachioCephalicVein, GetBackgroundValue(), 2, true, p);
-  double CaudalMarginOfLeftBrachiocephalicVeinZ=p[2];
-  GetAFDB()->SetDouble("CaudalMarginOfLeftBrachiocephalicVeinZ", CaudalMarginOfLeftBrachiocephalicVeinZ);
-  
-  // First, cut on the most inferior part. Add one slice because this
-  // inf slice should not be included.
-  double inf = std::min(CaudalMarginOfLeftBrachiocephalicVeinZ, TopOfAorticArchZ) + m_Working_Support->GetSpacing()[2];
-
-  // Get Sternum and search for the upper position
-  MaskImagePointer Sternum = GetAFDB()->template GetImage<MaskImageType>("Sternum");
-
-  // Search most sup point
-  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(Sternum, GetBackgroundValue(), 2, false, p);
-  double m_SternumZ = p[2];
-  // +Sternum->GetSpacing()[2]; // One more slice, because it is below this point // NOT HERE ?? WHY DIFFERENT FROM 3A ??
-
-  //* Crop support :
-  m_Working_Support = 
-    clitk::CropImageAlongOneAxis<MaskImageType>(m_Working_Support, 2, 
-                                                inf, m_SternumZ, true,
-                                                GetBackgroundValue());
-
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
-}
-//--------------------------------------------------------------------
-
-
-//--------------------------------------------------------------------
-template <class ImageType>
-void 
-clitk::ExtractLymphStationsFilter<ImageType>::
-ExtractStation_2RL_Ant_Limits() 
-{
-  // -----------------------------------------------------
-  /* Rod says: "The anterior border, as with the Atlas – UM, is
-    posterior to the vessels (right subclavian vein, left
-    brachiocephalic vein, right brachiocephalic vein, left subclavian
-    artery, left common carotid artery and brachiocephalic trunk).
-    These vessels are not included in the nodal station.  The anterior
-    border is drawn to the midpoint of the vessel and an imaginary
-    line joins the middle of these vessels.  Between the vessels,
-    station 2 is in contact with station 3a." */
-
-  // -----------------------------------------------------
-  StartNewStep("[Station 2RL] Ant limits with CommonCarotidArtery");
-
-  // Get CommonCarotidArtery
-  MaskImagePointer CommonCarotidArtery = GetAFDB()->template GetImage<MaskImageType>("CommonCarotidArtery");
-  
-  // Remove Ant to CommonCarotidArtery
-  typedef SliceBySliceRelativePositionFilter<MaskImageType> SliceRelPosFilterType;
-  typename SliceRelPosFilterType::Pointer sliceRelPosFilter = SliceRelPosFilterType::New();
-  sliceRelPosFilter->VerboseStepFlagOff();
-  sliceRelPosFilter->WriteStepFlagOff();
-  sliceRelPosFilter->SetInput(m_Working_Support);
-  sliceRelPosFilter->SetInputObject(CommonCarotidArtery);
-  sliceRelPosFilter->SetDirection(2);
-  sliceRelPosFilter->SetFuzzyThreshold(GetFuzzyThreshold("2RL", "CommonCarotidArtery"));
-  sliceRelPosFilter->AddOrientationTypeString("NotAntTo");
-  sliceRelPosFilter->IntermediateSpacingFlagOn();
-  sliceRelPosFilter->SetIntermediateSpacing(2);
-  sliceRelPosFilter->UniqueConnectedComponentBySliceOff();
-  sliceRelPosFilter->UseASingleObjectConnectedComponentBySliceFlagOff();
-  sliceRelPosFilter->AutoCropFlagOn(); 
-  sliceRelPosFilter->IgnoreEmptySliceObjectFlagOn();
-  sliceRelPosFilter->RemoveObjectFlagOff();
-  sliceRelPosFilter->Update();
-  m_Working_Support = sliceRelPosFilter->GetOutput();
-
-  // End
-  StopCurrentStep<MaskImageType>(m_Working_Support);
+  // Do the same limits for R & L
+  m_Working_Support = m_ListOfStations["2R"];
+  ExtractStation_2RL_Ant_Limits("2R"); 
+  ExtractStation_2RL_Remove_Structures(" 2R");
   m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
-
-  // -----------------------------------------------------
-  // Remove Ant to H line from the Ant most part of the
-  // CommonCarotidArtery until we reach the first slice of
-  // BrachioCephalicArtery
-  StartNewStep("[Station 2RL] Ant limits with CommonCarotidArtery, H line");
 
-  // First, find the first slice of BrachioCephalicArtery
-  MaskImagePointer BrachioCephalicArtery = GetAFDB()->template GetImage<MaskImageType>("BrachioCephalicArtery");
-  MaskImagePointType p = BrachioCephalicArtery->GetOrigin(); // initialise to avoid warning 
-  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(BrachioCephalicArtery, GetBackgroundValue(), 2, false, p);
-  double TopOfBrachioCephalicArteryZ=p[2] + BrachioCephalicArtery->GetSpacing()[2]; // Add one slice
-
-  // Remove CommonCarotidArtery below this point
-  CommonCarotidArtery = clitk::CropImageRemoveLowerThan<MaskImageType>(CommonCarotidArtery, 2, TopOfBrachioCephalicArteryZ, true, GetBackgroundValue());  
-
-  // Find most Ant points
-  std::vector<MaskImagePointType> ccaAntPositionA;
-  std::vector<MaskImagePointType> ccaAntPositionB;
-  clitk::SliceBySliceBuildLineSegmentAccordingToExtremaPosition<MaskImageType>(CommonCarotidArtery, 
-                                                                               GetBackgroundValue(), 2,
-                                                                               1, true, // Ant
-                                                                               0, // Horizontal line
-                                                                               -3, // margin
-                                                                               ccaAntPositionA, 
-                                                                               ccaAntPositionB);
-  // Cut ant to this line
-  clitk::SliceBySliceSetBackgroundFromLineSeparation<MaskImageType>(m_Working_Support, 
-                                                                    ccaAntPositionA,
-                                                                    ccaAntPositionB,
-                                                                    GetBackgroundValue(), 1, 10); 
-
-  // End
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
+  m_Working_Support = m_ListOfStations["2L"];
+  ExtractStation_2RL_Ant_Limits("2L");
+  ExtractStation_2RL_Remove_Structures(" 2L");
   m_ListOfStations["2L"] = m_Working_Support;
 
-  // -----------------------------------------------------
-  // Ant limit with the BrachioCephalicArtery
-  StartNewStep("[Station 2RL] Ant limits with BrachioCephalicArtery line");
+  // Remove superior part to BrachioCephalicVein (used then by RelPos)
+  ExtractStation_2RL_Cut_BrachioCephalicVein_superiorly_when_it_split();
 
-  // Remove Ant to BrachioCephalicArtery
-  m_Working_Support = 
-    clitk::SliceBySliceRelativePosition<MaskImageType>(m_Working_Support, BrachioCephalicArtery, 2, 
-                                                       GetFuzzyThreshold("2RL", "BrachioCephalicArtery"), "NotAntTo", false, 2, true, false);
-  // End
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
-
-  // -----------------------------------------------------
-  // Ant limit with the BrachioCephalicArtery H line
-  StartNewStep("[Station 2RL] Ant limits with BrachioCephalicArtery, Horizontal line");
+  // Generic RelativePosition processes
+  m_ListOfStations["2R"] = this->ApplyRelativePositionList("Station_2R", m_ListOfStations["2R"]);
+  m_ListOfStations["2L"] = this->ApplyRelativePositionList("Station_2L", m_ListOfStations["2L"]);
   
-  // Find most Ant points
-  std::vector<MaskImagePointType> bctAntPositionA;
-  std::vector<MaskImagePointType> bctAntPositionB;
-  clitk::SliceBySliceBuildLineSegmentAccordingToExtremaPosition<MaskImageType>(BrachioCephalicArtery, 
-                                                                               GetBackgroundValue(), 2,
-                                                                               1, true, // Ant
-                                                                               0, // Horizontal line
-                                                                               -1, // margin
-                                                                               bctAntPositionA, 
-                                                                               bctAntPositionB);
-  // Cut ant to this line
-  clitk::SliceBySliceSetBackgroundFromLineSeparation<MaskImageType>(m_Working_Support, 
-                                                                    bctAntPositionA,
-                                                                    bctAntPositionB,
-                                                                    GetBackgroundValue(), 1, 10); 
- // End
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
-
-  // -----------------------------------------------------
-  // Ant limit with the BrachioCephalicVein
-  StartNewStep("[Station 2RL] Ant limits with BrachioCephalicVein");
-
-  // Remove Ant to BrachioCephalicVein
-  MaskImagePointer BrachioCephalicVein = GetAFDB()->template GetImage<MaskImageType>("BrachioCephalicVein");
-  m_Working_Support = 
-    clitk::SliceBySliceRelativePosition<MaskImageType>(m_Working_Support, BrachioCephalicVein, 2, 
-                                                       GetFuzzyThreshold("2RL", "BrachioCephalicVein"), "NotAntTo", false, 2, true, false);
-  // End
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
+  // Store image filenames into AFDB 
+  writeImage<MaskImageType>(m_ListOfStations["2R"], "seg/Station2R.mhd");
+  writeImage<MaskImageType>(m_ListOfStations["2L"], "seg/Station2L.mhd");
+  GetAFDB()->SetImageFilename("Station2R", "seg/Station2R.mhd"); 
+  GetAFDB()->SetImageFilename("Station2L", "seg/Station2L.mhd"); 
+  WriteAFDB(); 
+  StopSubStep();
 }
 //--------------------------------------------------------------------
 
@@ -251,10 +71,10 @@ ExtractStation_2RL_Ant_Limits()
 template <class ImageType>
 void 
 clitk::ExtractLymphStationsFilter<ImageType>::
-ExtractStation_2RL_Ant_Limits2()
+ExtractStation_2RL_Ant_Limits(std::string s)
 {
   // -----------------------------------------------------
-  StartNewStep("[Station 2RL] Ant limits with vessels centroids");
+  StartNewStep("[Station "+s+"] Ant limits with vessels centroids");
   
   // WARNING, as I used "And" after, empty slice in binarizedContour
   // lead to remove part of the support, although we want to keep
@@ -267,7 +87,6 @@ ExtractStation_2RL_Ant_Limits2()
   binarizedContour = clitk::ResizeImageLike<MaskImageType>(binarizedContour, 
                                                            m_Working_Support, 
                                                            GetForegroundValue());
-  
   // remove from support
   typedef clitk::BooleanOperatorLabelImageFilter<MaskImageType> BoolFilterType;
   typename BoolFilterType::Pointer boolFilter = BoolFilterType::New(); 
@@ -279,11 +98,9 @@ ExtractStation_2RL_Ant_Limits2()
   boolFilter->SetOperationType(BoolFilterType::And);
   boolFilter->Update();
   m_Working_Support = boolFilter->GetOutput();
-
+  
   // End
   StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
 }
 //--------------------------------------------------------------------
 
@@ -292,35 +109,43 @@ ExtractStation_2RL_Ant_Limits2()
 template <class ImageType>
 void 
 clitk::ExtractLymphStationsFilter<ImageType>::
-ExtractStation_2RL_Post_Limits() 
+ExtractStation_2RL_Cut_BrachioCephalicVein_superiorly_when_it_split() 
 {
-  StartNewStep("[Station 2RL] Post limits with post wall of Trachea");
-
-  // Get Trachea
-  MaskImagePointer Trachea = GetAFDB()->template GetImage<MaskImageType>("Trachea");
+  // -----------------------------------------------------
+  StartNewStep("[Station 2RL] Cut BrachioCephalicVein superiorly (when it split)");
   
-  // Resize like the current support (to have the same number of slices)
-  Trachea = clitk::ResizeImageLike<MaskImageType>(Trachea, m_Working_Support, GetBackgroundValue());
-
-  // Find extrema post positions
-  std::vector<MaskImagePointType> tracheaPostPositionsA;
-  std::vector<MaskImagePointType> tracheaPostPositionsB;
-  clitk::SliceBySliceBuildLineSegmentAccordingToExtremaPosition<MaskImageType>(Trachea, 
-                                                                               GetBackgroundValue(), 2, 
-                                                                               1, false, // Post
-                                                                               0, // Horizontal line 
-                                                                               1, 
-                                                                               tracheaPostPositionsA, 
-                                                                               tracheaPostPositionsB);
-  // Cut post to this line
-  clitk::SliceBySliceSetBackgroundFromLineSeparation<MaskImageType>(m_Working_Support, 
-                                                                    tracheaPostPositionsA,
-                                                                    tracheaPostPositionsB,
-                                                                    GetBackgroundValue(), 1, -10); 
-  // END
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
+  // Get BrachioCephalicVein
+  MaskImagePointer BrachioCephalicVein = GetAFDB()->template GetImage<MaskImageType>("BrachioCephalicVein");
+  
+  // Remove the part superior to the slice where BrachioCephalicVein
+  // divide in two CCL
+  std::vector<MaskSlicePointer> BCV_slices;
+  clitk::ExtractSlices<MaskImageType>(BrachioCephalicVein, 2, BCV_slices);
+  bool stop = false;
+  uint i=0;
+  while (!stop) {
+    // Count the number of CCL
+    int nb;
+    clitk::LabelizeAndCountNumberOfObjects<MaskSliceType>(BCV_slices[i], GetBackgroundValue(), true, 1, nb);
+    if (nb>1) stop = true;
+    i++; 
+  }
+  // Convert slice into coordinate
+  MaskImagePointType p;
+  MaskImageIndexType index;
+  index[0] = index[1] = 0;
+  index[2] = i;
+  BrachioCephalicVein->TransformIndexToPhysicalPoint(index, p);
+  BrachioCephalicVein = 
+    clitk::CropImageRemoveGreaterThan<MaskImageType>(BrachioCephalicVein, 2, 
+                                                     p[2], true,
+                                                     GetBackgroundValue());
+
+  // Now, insert this image in the AFDB (but do not store on disk)
+  GetAFDB()->template SetImage<MaskImageType>("BrachioCephalicVein_ForS2RL", "bidon", 
+                                              BrachioCephalicVein, false);
+  // End
+  StopCurrentStep<MaskImageType>(BrachioCephalicVein);
 }
 //--------------------------------------------------------------------
 
@@ -354,173 +179,18 @@ Build3DMeshFrom2DContour(const std::vector<ImagePointType> & points)
 template <class ImageType>
 void
 clitk::ExtractLymphStationsFilter<ImageType>::
-ExtractStation_2RL_LR_Limits()
+ExtractStation_2RL_Remove_Structures(std::string s)
 {
-  // ---------------------------------------------------------------------------
-  StartNewStep("[Station 2RL] Left/Right limits with Aorta");
-  MaskImagePointer Aorta = GetAFDB()->template GetImage<MaskImageType>("Aorta");
-  //  DD(GetFuzzyThreshold("2RL", "BrachioCephalicVein"));
-  m_Working_Support = 
-    clitk::SliceBySliceRelativePosition<MaskImageType>(m_Working_Support, Aorta, 2, 
-                                                       GetFuzzyThreshold("2RL", "Aorta"),
-                                                       "RightTo", false, 2, true, false);  
-  // END
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
-
-  // ---------------------------------------------------------------------------
-  StartNewStep("[Station 2RL] Left/Right limits with SubclavianArtery (Right)");
-  
-  // SliceBySliceRelativePosition + select CCL most at Right
-  MaskImagePointer SubclavianArtery = GetAFDB()->template GetImage<MaskImageType>("SubclavianArtery");
-  typedef SliceBySliceRelativePositionFilter<MaskImageType> SliceRelPosFilterType;
-  typename SliceRelPosFilterType::Pointer sliceRelPosFilter = SliceRelPosFilterType::New();
-  sliceRelPosFilter->VerboseStepFlagOff();
-  sliceRelPosFilter->WriteStepFlagOff();
-  sliceRelPosFilter->SetInput(m_Working_Support);
-  sliceRelPosFilter->SetInputObject(SubclavianArtery);
-  sliceRelPosFilter->SetDirection(2);
-  sliceRelPosFilter->SetFuzzyThreshold(GetFuzzyThreshold("2RL", "SubclavianArteryRight"));
-  sliceRelPosFilter->AddOrientationTypeString("NotRightTo");
-  sliceRelPosFilter->IntermediateSpacingFlagOn();
-  sliceRelPosFilter->SetIntermediateSpacing(2);
-  sliceRelPosFilter->UniqueConnectedComponentBySliceOff();
-  sliceRelPosFilter->UseASingleObjectConnectedComponentBySliceFlagOff();
-
-  sliceRelPosFilter->CCLSelectionFlagOn(); // select one CCL by slice
-  sliceRelPosFilter->SetCCLSelectionDimension(0); // select according to X (0) axis
-  sliceRelPosFilter->SetCCLSelectionDirection(-1); // select most at Right
-  sliceRelPosFilter->CCLSelectionIgnoreSingleCCLFlagOn(); // ignore if only one CCL
-
-  sliceRelPosFilter->AutoCropFlagOn(); 
-  sliceRelPosFilter->IgnoreEmptySliceObjectFlagOn();
-  sliceRelPosFilter->RemoveObjectFlagOff();
-  sliceRelPosFilter->Update();
-  m_Working_Support = sliceRelPosFilter->GetOutput();
-
-  // END
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
-
-
-  // ---------------------------------------------------------------------------
-  StartNewStep("[Station 2RL] Left/Right limits with SubclavianArtery (Left)");
-  
-  // SliceBySliceRelativePosition + select CCL most at Right
-   sliceRelPosFilter = SliceRelPosFilterType::New();
-  sliceRelPosFilter->VerboseStepFlagOff();
-  sliceRelPosFilter->WriteStepFlagOff();
-  sliceRelPosFilter->SetInput(m_Working_Support);
-  sliceRelPosFilter->SetInputObject(SubclavianArtery);
-  sliceRelPosFilter->SetDirection(2);
-  sliceRelPosFilter->SetFuzzyThreshold(GetFuzzyThreshold("2RL", "SubclavianArteryLeft"));
-  sliceRelPosFilter->AddOrientationTypeString("NotLeftTo");
-  sliceRelPosFilter->IntermediateSpacingFlagOn();
-  sliceRelPosFilter->SetIntermediateSpacing(2);
-  sliceRelPosFilter->UniqueConnectedComponentBySliceOff();
-  sliceRelPosFilter->UseASingleObjectConnectedComponentBySliceFlagOff();
-
-  sliceRelPosFilter->CCLSelectionFlagOn(); // select one CCL by slice
-  sliceRelPosFilter->SetCCLSelectionDimension(0); // select according to X (0) axis
-  sliceRelPosFilter->SetCCLSelectionDirection(+1); // select most at Left
-  sliceRelPosFilter->CCLSelectionIgnoreSingleCCLFlagOff(); // do not ignore if only one CCL
-
-  sliceRelPosFilter->AutoCropFlagOn(); 
-  sliceRelPosFilter->IgnoreEmptySliceObjectFlagOn();
-  sliceRelPosFilter->RemoveObjectFlagOff();
-  sliceRelPosFilter->Update();
-  m_Working_Support = sliceRelPosFilter->GetOutput();
-
-  // END
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
-}
-//--------------------------------------------------------------------
-
-//--------------------------------------------------------------------
-template <class ImageType>
-void
-clitk::ExtractLymphStationsFilter<ImageType>::
-ExtractStation_2RL_Remove_Structures()
-{
-  Remove_Structures("2RL", "BrachioCephalicVein");
-  Remove_Structures("2RL", "CommonCarotidArtery");
-  Remove_Structures("2RL", "SubclavianArtery");
-  Remove_Structures("2RL", "Thyroid");
-  Remove_Structures("2RL", "Aorta");
-  
-  // END
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support;
+  // m_Working_Support must be set
+  Remove_Structures(s, "BrachioCephalicVein");
+  Remove_Structures(s, "BrachioCephalicArtery");
+  Remove_Structures(s, "LeftCommonCarotidArtery");
+  Remove_Structures(s, "RightCommonCarotidArtery");
+  Remove_Structures(s, "LeftSubclavianArtery");
+  Remove_Structures(s, "RightSubclavianArtery");
+  Remove_Structures(s, "Thyroid");
+  Remove_Structures(s, "Aorta");
 }
 //--------------------------------------------------------------------
 
 
-//--------------------------------------------------------------------
-template <class ImageType>
-void
-clitk::ExtractLymphStationsFilter<ImageType>::
-ExtractStation_2RL_SeparateRL()
-{
-  // ---------------------------------------------------------------------------
-  StartNewStep("[Station 2RL] Separate 2R/2L according to Trachea");
-
-  /*Rod says: 
-    
-   "For station 2 there is a shift, dividing 2R from 2L, from midline
-   to the left paratracheal border."
-
-   Algo: 
-    - Consider Trachea SliceBySlice
-    - find extrema at Left
-    - add margins towards Right
-    - remove what is at Left of this line
-   */
-
-  // Get Trachea
-  MaskImagePointer Trachea = GetAFDB()->template GetImage<MaskImageType>("Trachea");
-  
-  // Resize like the current support (to have the same number of slices)
-  Trachea = clitk::ResizeImageLike<MaskImageType>(Trachea, m_Working_Support, GetBackgroundValue());
-
-  // Find extrema post positions
-  std::vector<MaskImagePointType> tracheaLeftPositionsA;
-  std::vector<MaskImagePointType> tracheaLeftPositionsB;
-  clitk::SliceBySliceBuildLineSegmentAccordingToExtremaPosition<MaskImageType>(Trachea, 
-                                                                               GetBackgroundValue(), 2, 
-                                                                               0, false, // Left
-                                                                               1, // Vertical line 
-                                                                               1, // margins 
-                                                                               tracheaLeftPositionsA, 
-                                                                               tracheaLeftPositionsB);
-  // Copy support for R and L
-  typedef itk::ImageDuplicator<MaskImageType> DuplicatorType;
-  DuplicatorType::Pointer duplicator = DuplicatorType::New();
-  duplicator->SetInputImage(m_Working_Support);
-  duplicator->Update();
-  MaskImageType::Pointer m_Working_Support2 = duplicator->GetOutput();
-  
-  // Cut post to this line for Right part
-  clitk::SliceBySliceSetBackgroundFromLineSeparation<MaskImageType>(m_Working_Support, 
-                                                                    tracheaLeftPositionsA,
-                                                                    tracheaLeftPositionsB,
-                                                                    GetBackgroundValue(), 0, -10); 
-  writeImage<MaskImageType>(m_Working_Support, "R.mhd");
-
-  // Cut post to this line for Left part
-  clitk::SliceBySliceSetBackgroundFromLineSeparation<MaskImageType>(m_Working_Support2, 
-                                                                    tracheaLeftPositionsA,
-                                                                    tracheaLeftPositionsB,
-                                                                    GetBackgroundValue(), 0, +10); 
-  writeImage<MaskImageType>(m_Working_Support2, "L.mhd");
-
-  // END
-  StopCurrentStep<MaskImageType>(m_Working_Support);
-  m_ListOfStations["2R"] = m_Working_Support;
-  m_ListOfStations["2L"] = m_Working_Support2;
-}
-//--------------------------------------------------------------------