skeletonize 3D liver vessels

I guys, I have to skeletonize a 3D vascular net of the liver vessels. Any ideas/code/examples that could help me? I know that it exists the class itkBinaryThinningImageFilter but it works only for 2D images…
Thanks in advance for any help!

Hi Marco,
the easiest would be to use the itkBinaryThinningImageFilter3D from the ITKThickness3D external module: