Clear Blood Vessel Segmentation in 3D image using VTK

Question

I am using vtk for segmenting blood vessels. I have two dicom image sets,one has normal CT images and the other has CT with MIP(Maximum Intensity Projection). So i subtracted the two series and gave that result to the input of vtkMarchingCubes.But my segmented image is showing only less details.I have attached what i got in the picture. https://i.sstatic.net/V66nN.png

I tried using filters but no use

I need to get even the thin vessels.How is it possible using only VTK? If not How is it possible in ITK.

If my question is not clear kindly inform

Answer 1

In ITK, you could use vesselness filter to enhance the vessels. That should make them easier to extract.