Hi All What is the units returned by the GetPixelSpacing of the vtkDICOMImageReader ? Is the spacing returned in mm ? Thanks Zohar -- View this message in context: http://vtk.1045678.n5.nabble.com/GetPixelSpacing-Is-that-in-mm-tp5721519.html Sent from the VTK - Users mailing list archive at Nabble.com.