yes. Bruce
On Tue, 30 Sep 2003, Keyma Prince wrote: > Sorry I meant to say that I got 1,635,352 as the number of nonzero voxels. > I'm assuming based on what you said this is reasonable, correct? > > -Keyma > > Keyma Prince > Massachusetts Institute of Technology > Department of Brain and Cognitive Sciences > NE20-392 > Cambridge, MA 02139 > > On Tue, 30 Sep 2003, Bruce Fischl wrote: > > > it actually sounds too small. Thge typical icv is about 1,500,000 > > mm^3 I think. > > > > Bruce > > > > -------------------------------------------------------- > > Bruce Fischl email: [EMAIL PROTECTED] > > Mass. General Hosp. NMR Center. tel:(617)-726-4897 > > Rm. 2301, Building 149, 13th Street fax:(617)-726-7422 > > Charlestown, MA 02129 USA > > > > > > On Tue, 30 Sep 2003, Keyma Prince wrote: > > > > > Dear Mr. Fischl, > > > > > > You sent me a file called load_cor.m about a month a ago that loads the > > > brain volume into a variable in matlab. I wrote a script to count the > > > number of non-zero voxels. For one of the brains that I tired the count > > > came out to brainsize = 163535; > > > > > > Does this reasonable? > > > > > > -Keyma > > > > > > Keyma Prince > > > Massachusetts Institute of Technology > > > Department of Brain and Cognitive Sciences > > > NE20-392 > > > Cambridge, MA 02139 > > > > > > On Wed, 13 Aug 2003, Bruce Fischl wrote: > > > > > > > load_cor.m (I've attached it in case you don't have it). > > > > > > > > Bruce > > > > > > > > On Wed, 13 Aug > > > > 2003, Keyma Prince wrote: > > > > > > > > > Thanks for the reply but i'm confused on how to load the volume into > > > > > matlab. I know how to load files with variables into matlab but not the > > > > > COR volume files. Can you let me know what command I can use to load the > > > > > brain volume in. > > > > > > > > > > -Keyma > > > > > > > > > > Keyma Prince > > > > > Massachusetts Institute of Technology > > > > > Department of Brain and Cognitive Sciences > > > > > NE20-392 > > > > > Cambridge, MA 02139 > > > > > > > > > > On Wed, 13 Aug 2003, Bruce Fischl wrote: > > > > > > > > > > > Hi Keyma, > > > > > > > > > > > > I don't think it's saved anywhere, but it would be pretty trivial to > > > > > > regenerate - just load the brain volume into matlab and count the # of > > > > > > non-zero voxels. To be safe you should multiply by the voxel volume, as > > > > > > it won't always be 1mm^3. > > > > > > > > > > > > cheers, > > > > > > Bruce > > > > > > > > > > > > > > > > > > On Wed, 13 Aug 2003, Keyma Prince wrote: > > > > > > > > > > > > > I noticed that after running mri_watershed I get this output on the > > > > > > > screen: > > > > > > > > > > > > > > ************FINAL ITERATIVE TEMPLATE DEFORMATION************ > > > > > > > Compute Local values csf/gray > > > > > > > Fine Segmentation... > > > > > > > 28 iterations > > > > > > > mri_strip_skull: done peeling brain > > > > > > > > > > > > > > Brain Size = 1777237 mmm3 = 1777.237 cm3 > > > > > > > > > > > > > > ****************************** > > > > > > > > > > > > > > Is the brain size value here accurate? Is this the volume of the brain > > > > > > > with the skull removed? Is this value saved anywhere after the program > > > > > > > exits? > > > > > > > > > > > > > > -Keyma > > > > > > > > > > > > > > Keyma Prince > > > > > > > Massachusetts Institute of Technology > > > > > > > Department of Brain and Cognitive Sciences > > > > > > > NE20-392 > > > > > > > Cambridge, MA 02139 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
