[Mristudio-users] non isometric voxels

[mustela at mce.hggm.es]

Hi,

I wonder if someone has experience in DTI analysis using scans from a 
1.5 GE Signa. The problem is that images were acquired for 33 
directions but with a pixel size of 1.1 x 1.1 x 5 mm  (x,y,z) aquired 
in axial (x,y) plane. Far for being isometric, as recommended by the experts...

Before doing all the preprocessing, do you think that those images 
would be too noisy for tracktography or FA analysis??
The data is intended to investigate group comparison patients 
/controls using ADC and RA values, and sample size is not very large.

Thanks in advance,

Santiago

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Santiago Reig
    Hospital General Universitario Gregorio Marañón
    Unidad de Medicina y Cirugía Experimental
    c/ Dr. Esquerdo 46, 28007 Madrid
           Tel:  34 91 426 5067 Fax: 34 91 426 5108
mustela at mce.hggm.es  http://www.hggm.es/image