diff --git a/Modules/RegistrationOntology/include/mitkSegmentationPropagation.h b/Modules/RegistrationOntology/include/mitkSegmentationPropagation.h
index 753f5b81c2..2809473794 100644
--- a/Modules/RegistrationOntology/include/mitkSegmentationPropagation.h
+++ b/Modules/RegistrationOntology/include/mitkSegmentationPropagation.h
@@ -1,50 +1,57 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 #ifndef MITKSEGMENTATIONPROPAGATION_H
 #define MITKSEGMENTATIONPROPAGATION_H
 
 // registration ontology module
 #include "MitkRegistrationOntologyExports.h"
 
 // mitk core
 #include <mitkDataNode.h>
 
 // matchpoint ontology
 //#include <mapSimpleOntologyCore.h>
 //#include <mapSimpleOntology.h>
 
 namespace mitk
 {
   /**
   * @brief
   *
   *
   */
   class MITKREGISTRATIONONTOLOGY_EXPORT SegmentationPropagation
   {
   public:
 
     /**
-    * @brief
+    * @brief Propagate a given segmentation mask to the given target image.
+    *        The function creates a new label set image and initializes it with the given segmentation mask.
+    *        DICOM properties are derived from the target image and set for the new segmentation.
+    *        A new series instance UID is created to uniquely identify the new segmentation.
+    *        The new segmentation is set as the data of a new data node which is then returned.
     *
+    * @param segmentationMask   The base data of the segmentation to propagate
+    * @param targetImage        The data node containing the parent image.
+    * return  The data node containing the new segmentation.
     */
-    DataNode::Pointer PropagateSegmentationMask(BaseData* segmentationMask, DataNode* targetImage);
+    DataNode::Pointer PropagateSegmentationMask(BaseData* segmentationMask, const DataNode* targetImage);
 
   };
 } // namespace mitk
 
 #endif // MITKSEGMENTATIONPROPAGATION_H
diff --git a/Modules/RegistrationOntology/src/mitkSegmentationPropagation.cpp b/Modules/RegistrationOntology/src/mitkSegmentationPropagation.cpp
index 1a144b30cc..159b8d2afb 100644
--- a/Modules/RegistrationOntology/src/mitkSegmentationPropagation.cpp
+++ b/Modules/RegistrationOntology/src/mitkSegmentationPropagation.cpp
@@ -1,69 +1,69 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 #include "mitkSegmentationPropagation.h"
 
 // mitk core
 #include <mitkProperties.h>
 #include <mitkPropertyNameHelper.h>
 
 // DICOMQI module
 #include <mitkDICOMQIPropertyHelper.h>
 
 // multilabel module
 #include <mitkLabelSetImage.h>
 
-mitk::DataNode::Pointer mitk::SegmentationPropagation::PropagateSegmentationMask(BaseData* segmentationMask, DataNode* targetImage)
+mitk::DataNode::Pointer mitk::SegmentationPropagation::PropagateSegmentationMask(BaseData* segmentationMask, const DataNode* targetImage)
 {
   if (nullptr == targetImage)
   {
     return nullptr;
   }
 
   BaseData* targetImageData = targetImage->GetData();
   if (nullptr == targetImageData)
   {
     return nullptr;
   }
 
   Image::Pointer segmentation = dynamic_cast<Image*>(segmentationMask);
   if (nullptr == segmentation)
   {
     return nullptr;
   }
 
 
   // clone the segmentation image / the base data
   //auto labelSetImage = segmentation->Clone();
   // create new empty segmentation
   auto labelSetImage = LabelSetImage::New();
   // copy image data (e.g. pixel information)
   labelSetImage->InitializeByLabeledImage(segmentation);
 
   // copy DICOM information from the target image to the new segmentation
   DICOMQIPropertyHandler::DeriveDICOMSourceProperties(targetImageData, labelSetImage);
 
   // DICOM tag is "SeriesInstanceUID" - needs to be removed to define a new tag with UID
   std::string nodeIDPropertyKey = GeneratePropertyNameForDICOMTag(0x0020, 0x000e);
   labelSetImage->RemoveProperty(nodeIDPropertyKey);
 
   auto newSegmentationNode = DataNode::New();
   newSegmentationNode->SetData(labelSetImage);
   newSegmentationNode->SetProperty("name", StringProperty::New("PropagatedLesion"));
   newSegmentationNode->SetProperty("binary", BoolProperty::New(true));
 
   return newSegmentationNode;
 }