Hi, Have you tried to give the centre of gravity coordinates? -c <x y z> option in command line. It improves loads bet performance. Diana Markus Kivikangas dijo: > Hi, > > I'd like to know if it is possible to manually remove parts of skull after > using BET? I ask this because BET may do excellent work in the most part > of > the brain but may leave huge amounts of skull and other unwanted stuff for > other parts (see the attachment). >