Re: [Freesurfer] Issues parcellating with a custom atlas

2019-01-17 Thread Michael Sughrue
External Email - Use Caution Hi just following up on the question... .does anyone have an idea about why the same two parcellations get dropped when swapping the atlases out and making an aparc+aseg On Mon, 14 Jan. 2019, 11:17 pm Michael Sughrue Hello > > My in

[Freesurfer] Issues parcellating with a custom atlas

2019-01-14 Thread Michael Sughrue
External Email - Use Caution Hello My interest is to create an aparc+aseg file with a combination of a cortical parcellation with a custom cortical atlas and the subcortical grey matter components from the standard asegbasically i want to mask and extract signal from multiple

Re: [Freesurfer] On relationship between aparc+aseg.mgz and ?h.aparc.annot

2019-01-08 Thread Michael Sughrue
External Email - Use Caution Recon all takes the vertices and assigns them to a parcel using the gcs atlases ... these labelings are the annot files and they are used to generate the autoparcellated pial surfaces Because there are 3 atlases in the recon all pipeline... three

Re: [Freesurfer] Which T1 volume to use for coregistration with PET volume

2018-12-31 Thread Michael Sughrue
les you will probably need to fill the > hole in the wm.mgz to make the topology closer to what we expect it to be. > For the gliomas it depends on where they are > cheers > Bruce > On > Tue, 1 Jan 2019, Michael Sughrue wrote: > > > > > External Email

Re: [Freesurfer] Which T1 volume to use for coregistration with PET volume

2018-12-31 Thread Michael Sughrue
number of times but of course it depends a lot > on the details of the abnormality so it is hard to give generic advice > > cheers > Bruce > > On Fri, 28 Dec 2018, Michael Sughrue > wrote: > > > > > External Email - Use Caution > > > >

Re: [Freesurfer] Which T1 volume to use for coregistration with PET volume

2018-12-28 Thread Michael Sughrue
External Email - Use Caution Has anyone had success extracting surfaces of brains with obviously abnormal surfacespost-surgical or very distorted cortices from tumor etceven if the extraction is imperfect, is it possible to do with freesurfer and get something imperfect