Hi Bruce, I've a list of intra cerebral electrodes channel position segmented out from the MRI scans. I would like to convert the computed positions from the MRI scanner space to freesurfer vertexes. I've already transformed the coordinates of each point from indexes to Cartesian Space values (in the scanner RAS space). I'm looking to find which is the right surface to use the inflated or the pial surface to compute the nearest vertex for each point.
Does this short description clarify a little bit more my goal? cheers, g. 2011/1/25 Bruce Fischl <fis...@nmr.mgh.harvard.edu> > Hi Gabriele, > > what are you trying to accomplish? The "right choice" depends on your > goals. > > cheers > Bruce > > On Tue, 25 Jan 2011, Gabriele Arnulfo wrote: > > Hi again, >> >> looking in previous emails in the list i found that the best way to find >> the >> nearest vertex number to a certain point is by using the matlab script >> mesh_vertex_nearest. So far I've used it with input parameters: the >> vertices >> read through read_surf(rh_pial) and a matrix of Cartesian Coordinates. In >> this context I'd like to know which surface is the right choice, if there >> should be a choice. I've inserted either the pial and inflated surface >> having different result (vertex index) for the same point (RAS xyz). >> >> >> Cheers, >> >> g. >> >> >> > > The information in this e-mail is intended only for the person to whom it > is > addressed. If you believe this e-mail was sent to you in error and the > e-mail > contains patient information, please contact the Partners Compliance > HelpLine at > http://www.partners.org/complianceline . If the e-mail was sent to you in > error > but does not contain patient information, please contact the sender and > properly > dispose of the e-mail. > > -- In a world without wall, how needs WINDOWS??
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