diff --git a/include/DEN/DenFrame2DReader.hpp b/include/DEN/DenFrame2DReader.hpp
index daa8c4b282f3c98ecc29366939926e824895c666..6da8ca80ec80d01956cb410ef30893f4e9334735 100644
--- a/include/DEN/DenFrame2DReader.hpp
+++ b/include/DEN/DenFrame2DReader.hpp
@@ -50,13 +50,14 @@ namespace io {
         uint32_t dimz() const override;
         std::string getFileName() const;
         /**Returns file name of the underlying DEN file.**/
-    private:
+	protected:
         std::string denFile;
         uint64_t offset;
         // protected: // Visible in inheritance structure
         uint32_t sizex, sizey, sizez;
         DenSupportedType dataType;
         int elementByteSize;
+    private:
         mutable std::mutex* consistencyMutexes;
         uint8_t** buffers;
         T** buffer_copys;
diff --git a/include/DENITK/DenFrame2DReaderItk.hpp b/include/DENITK/DenFrame2DReaderItk.hpp
index f3676d4b3a346e616ba92fa6fe290e5d71bdb8df..12389ed41d70ace2f4e67e32964d0a22505d585e 100644
--- a/include/DENITK/DenFrame2DReaderItk.hpp
+++ b/include/DENITK/DenFrame2DReaderItk.hpp
@@ -38,10 +38,9 @@ namespace io {
     {
         //  LOGD << "Called readProjectionSliceToItkImage method, transpose???";
         typename itk::RawImageIO<T, 2>::Pointer rawImageIO = itk::RawImageIO<T, 2>::New();
-        rawImageIO->SetFileName(this->denFile); //(1) ... this is probably unnecessery
+        rawImageIO->SetFileName(this->getFileName()); //(1) ... this is probably unnecessery
         rawImageIO->SetFileTypeToBinary();
-        uint32_t offset = 6;
-        rawImageIO->SetHeaderSize(offset + i * this->elementByteSize * (this->sizex * this->sizey));
+        rawImageIO->SetHeaderSize(this->offset + i * this->elementByteSize * (this->sizex * this->sizey));
         rawImageIO->SetFileDimensionality(2);
 
         rawImageIO->SetOrigin(0, 0.0); // origin in millimeters