[Freesurfer] Freesurfer vs. VBM

Gentlemen,

I am giving a lecture about aging brain. I only discuss freesurfer, since that's the method we use for the brain volume and cortical thickness assessment. There are other methods, such as VBM and SIENA potentially providing similar information. I would appreciate if you could point me to a reference, which compares features of Freesurfer and VBM, or if you could provide me your insight on what are the advantages of FreeSurfer over VBM.

I could think of the following:

1. Freesurfer allowes for the subvoxel precision of the volume estimation

2. VBM involves strong filtering in order to suppress variations of individual anatomies

3. ????

4. ????

5. ????

Thanks a lot in advance.

Martin