[Freesurfer] 3D volume generation, ROI selection, subvolume analysis

2007-06-27 Thread Greg Soltis
Good morning, We have been working on Slicer and have been able to read in our stack of images. I can view them at the desired cross-sections by moving the three planes at will. But now we would like to be able to generate a 3D volume (in this case a rectangular prism) that contains all of the

Re: [Freesurfer] 3D volume generation, ROI selection, subvolume analysis

2007-06-28 Thread Greg Soltis
Howdie Bruce, At this lab (NRIMS in Cambridge, MA; www.nrims.harvard.edu), the machine provides a stack of images that, when reassembled, can replicate the entity (i.e., nucleus) being studied. We have been able to read these images into Slicer as TIFF files as well as in the raw data format p

[Freesurfer] FreeSurfer relevance for studying structures other than the brain

2007-07-09 Thread Greg Soltis
Greetings, I am attempting to use FreeSurfer/Slicer to study data from a mass sprectrometer. To be of use, the segmentation capability of FreeSurfer/Slicer has to be based on quantitative data, not morphology. It appears as if FreeSurfer uses a generic mapping of the brain's structure as a st

[Freesurfer] Is converting to mgz conducive for 16-bit files?

2007-07-09 Thread Greg Soltis
Greetings, The data at this lab initially comes in a RAW data format. When converted to 16-bit TIFF files, the quantitative data is retained. I recognize that, in order for FreeSurfer to be of use, this data must be converted to mgz files. However, does the process of converting this informa

Re: [Freesurfer] FreeSurfer relevance for studying structures other than the bra

2007-07-11 Thread Greg Soltis
Howdie Doug, We are interested in studying not the ventricles, per say, but the actual cells and components of the cells that comprise these ventricles. For example, cells from a heart, spleen, sperm, or cochlea. Since we are not using an MRI machine to obtain the images, is FreeSurfer of no