State of the art in facial nerve imaging?

Hello,

I would like to find out what is the state of the art, and public repositories, in facial nerve imaging. I am interested in developing a graph neural network and a 3D contour tree approach to training it, to identify which one of myriad topologies is present in a given patient, through MRI or DTI or HARDI. I also plan on using a musculoskeletal atlas of the head.

I was told that there are limitations to diffusion imaging due to air interface nearby.

Thanks for your consideration.

Michel Audette