3D medical imagery slices now available

["Ramin Shahidi" <shahidi@vitalimages.com>]

This file contains 1 data set MRI_RAW_HEAD 

The RAW data is the original MRI_SIGNA_GE data with 256 monochromic 
greyscale values. It contains 124 slices of 256x256x16 bits
Each slice has a header of 14336 bits.

There is a program that reads the whole directory, and saves each slice 
in a 2D buffer (one slice at a time). After taking the header off and 
reading one slice in buffer, it moves to next slice and reads that one 
in the same buffer.  So note that the buffer is dummy array and if you 
want to save each slice you have to read that slice from the buffer and 
save it into another. Or you can save the whole 3D data set in a 3D array.
To do so follow the instructions in the program.. you also would need at 
least 24 Mbytes of RAM to save the whole data-set in a 3D array.

This program is an honest to god "C" program and you should be able to 
compile it with any comercial "C" compiler. Unix User follow this:

cc readimages.c
mv a.out readimages
readimages     or ./readimages (depending how you set up your system)

the program will ask you the following questions.
**input directory name
You type              MRI_RAW_DATA  (or the path to the image dir.)
**input file name
You type              file
**Enter the number for the first image being loaded: 
 You type              10            (or any number 5<n1<124)
**Enter the number for the last image being loaded: 
 You type              125           (or any number n1<n2<124)
**Enter the Z value between slices in mm: 
 You type              1.5           (this is to get dimensions right)

It's that simple....
Please forward all question and bugs to shahidi@vizlab.rutgers.edu
good luck..  

ps. There is a fully segmented data set of head also available via request.

|--Ramin Shahidi, Ph.D.		--shahidi@vitalimages.com     |
|--Medical Imaging Sci.		--Work: USA) 515-472-7726     | 
|--Vital Images, Inc.       	--Home: USA) 515-472-0717     |

   "Imagination is more important than knowledge"   Einstein

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