Hi,

 

I am trying to register my functional images with a high resolution anatomical image.  I am getting a really bad registration.

 

The anatomical image has the following stats:

 

Dimension :  126x165x103

Voxel size  :  1 x 1 x 1

Fov            :  165

nFrames    :  1

Orientation: RPI

Primary Slice Direction : axial

 

The functional image has :

 

Dimension :  84 x 96 x 33 x158

Voxel size  :  1.4583 x 1.4583 x 1.5

Fov            :  84

nFrames    :  158

Orientation: RPI

Primary Slice Direction : axial

 

I am using the following command to do the registration:

 

“Spmregister-sess –sf sessid –df sesspar “

 

 

It looks like something to do with the scaling factor. But, I have no idea how to change it.   Any help will be welcome..

 

-Krishna