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Hi Rhuang,
 
just convert the data into a format FSL can read and create a proper 4D-file (where the fourth dimension is your bvecs so to say). If you have multiple acquisitions the image reconstruction of your scanner may either spit these out averaged or (/and) seperately. In the latter case, you may want to create the appropriate average yourself (to increase SNR). Finally, it is always a good idea to look at the data you have acquired, i.e. by using fslview (here, the movie option comes in handy!). This may give you the option to discard volumes afflicted from strange artefacts. Then, just go ahead for ECC.
Best regards-
Andreas
 
 

	-----Ursprüngliche Nachricht----- 
	Von: R Huang [mailto:[log in to unmask]] 
	Gesendet: Fr 26.11.2004 16:43 
	An: [log in to unmask] 
	Cc: 
	Betreff: [FSL] Pre-Processing in FDT
	
	

	Dear Group
	
	Using FDT, there is one recommended processing pipeline which can
	be found on the website
	  <http://www.fmrib.ox.ac.uk/fsl/fdt/fdt_pipeline.html>.
	The first item is the scanner-specific pre-processing.
	
	In our Lab, we use Siemens Sonate 1.5T scanner to acquire
	diffusion weighted images. I would like to ask your suggestions about the
	necessary procedures for the pre-processing (besides  of the motion
	correction and BET) ?
	
	Thanks in advance
	
	rhuang