> We have ACS NT 1.5T Philips MRI System, EasyVision station and WinNT4.0
> workstations and we are going to start fMRI studies.
> 1. What kind of software do we need to start fMRI data analyzing in SPM
> for WinNT?
Matlab 5.2 or Matlab 5.3. For more information, see:
http://www.mathworks.com/
> 2. Is basic version of MatLab enough or do we need any extra applications?
No additional toolboxes should be required. If anyone out there finds that
extra toolboxes appear to be needed, can they tell us so that we can fix it.
> 3. What kind of data format is required for SPM?
SPM99 requires the Analyze 7.5 file format. This is described at:
http://www.mayo.edu/bir/analyze/AnalyzeFileInfo.html.
Note that only the following ANALYZE data types are supported:
#define DT_UNSIGNED_CHAR 2 /*Unsigned character (8 bits per voxel)*/
#define DT_SIGNED_SHORT 4 /*Signed short (16 bits per voxel)*/
#define DT_SIGNED_INT 8 /*Signed integer (32 bits per voxel)*/
#define DT_FLOAT 16 /*Floating point (32 bits per voxel)*/
#define DT_DOUBLE 64 /*Double precision (64 bits per voxel)*/
There is also an SPM specific hack that involves putting a scalefactor in
the field (so that by multiplying a voxel value in the range -32768->32767,
or 0->255 by this scalefactor, you will get the "true" voxel intensity):
float roi_scale; /* 72 + 4 */
There is also an "ORIGIN" field that was invented for SPM images that
covers the originator field.
char originator[10]; /* 105 + 10 */
You can get more information on the file formats by looking at
spm_format.man, and spm_hread.m (that are part of the SPM99 release).
SPM99 is also able to read MINC and ECAT7 images. This is new, and as
yet still relatively untested. We hope to get more feedback on this from
the rest of the SPM community.
> 4. How to convert (EPI) aquisition data to correct format?
I'm afraid I can't help with this one.
Good luck,
-John
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