Thank you, Donald. I really appreciate your help. Best, Harry
On Friday, May 16, 2014, MCLAREN, Donald <[email protected]> wrote: > Harry, > The approach that I have take is that if the center of a voxel is within r-mm of the MNI coordinates, then the voxel is in the sphere. > Attached is some matlab code for generating spheres based on the center coordinate and a radius. > > Best Regards, Donald McLaren > ================= > D.G. McLaren, Ph.D. > Research Fellow, Department of Neurology, Massachusetts General Hospital and > Harvard Medical School > Postdoctoral Research Fellow, GRECC, Bedford VA > Website: http://www.martinos.org/~mclaren > Office: (773) 406-2464 > ===================== > This e-mail contains CONFIDENTIAL INFORMATION which may contain PROTECTED > HEALTHCARE INFORMATION and may also be LEGALLY PRIVILEGED and which is > intended only for the use of the individual or entity named above. If the > reader of the e-mail is not the intended recipient or the employee or agent > responsible for delivering it to the intended recipient, you are hereby > notified that you are in possession of confidential and privileged > information. Any unauthorized use, disclosure, copying or the taking of any > action in reliance on the contents of this information is strictly > prohibited and may be unlawful. If you have received this e-mail > unintentionally, please immediately notify the sender via telephone at (773) > 406-2464 or email. > > On Fri, May 16, 2014 at 1:49 PM, Hai Shu <[email protected]> wrote: >> >> Dear Sir or Madam, >> I am new to the neuroimaging, and now I have a question about defining a spherical seed region for the seed-based functional connectivity. >> My question is: >> If a seed region has a radius of 4 mm and is centered at MNI coordinates (0,-53,26), and the voxel is 2-mm isotropic, what is the routine to determine which voxels are in the spherical region? If >50% of a voxel was within the spherical region, would you think the voxel is effectively in the region, i.e., would you take the voxel into account to calculate the averaged time series of the seed region? >> Btw, is there any software or Matlab package (preferred) to draw the spherical region and tell you the voxels in the region? >> >> Thanks. >> >> Best, >> Harry >> >> _______________________________________________ >> HCP-Users mailing list >> [email protected] >> http://lists.humanconnectome.org/mailman/listinfo/hcp-users > _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
