what was your vol2surf command line? Make sure that it is using nearest neighbor interpolation On Tue, 11 Oct 2016, Crawford, Anna wrote:
> Hi, > > I am trying to remap a volume. I am using aparc+aseg.mgz volume. I loaded it > into Matlab using load_mgh. In Matlab I remap the volume to different > values. For example, all original values of 1022 will become 200 and all > 1030 values will become 150. (This is just an example, not necessarily these > numbers.) I save a new aparc+asegNew.mgz file using save_mgh. I use the same > M and mr_parms that I got when I loaded in the original file. I'm not sure > what these mean or if I need to change them. Then I use mri_vol2surf to > create a new surface overlay onto the inflated hemisphere. When I do this, > each region such as post central gyrus is 2 colors spotted together instead > of a solid color like in the original. I have attached pictures as an > example of what the original and remapped looked like. I didn't change the > location of values, just simple gave each value a new one. Why is the one > value speckled throughout? > > Thank you, > Anna > > =================================== > > Please consider the environment before printing this e-mail > > Cleveland Clinic is ranked as one of the top hospitals in America by > U.S.News & World Report (2015). Visit us online at > http://www.clevelandclinic.org for a complete listing of our services, staff > and locations. Confidentiality Note: This message is intended for use only > by the individual or entity to which it is addressed and may contain > information that is privileged, confidential, and exempt from disclosure > under applicable law. If the reader of this message is not the intended > recipient or the employee or agent responsible for delivering the message to > the intended recipient, you are hereby notified that any dissemination, > distribution or copying of this communication is strictly prohibited. If you > have received this communication in error, please contact the sender > immediately and destroy the material in its entirety, whether electronic or > hard copy. Thank you. > > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer 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.
