Disclaimer: I am one of the major contributors to MRIcroS.


If you have Matlab, then MRIcroS may provide some help for analyzing VTK data.

MRIcroS provides

• visualization of VTK files.
• Ability to read VTK files into data via Matlab command prompt
  install MRIcroS
  [vertices, faces] = fileUtils.vtk.readVtk(filename);

MRIcroS link:
https://github.com/bonilhamusclab/MRIcro...