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faq:how_change_mri_orientation_size_fov [2015/11/15 03:11]
arjen [Change the field-of-view (VOF)]
faq:how_change_mri_orientation_size_fov [2017/01/23 18:23]
136.152.142.109 [How to change the MRI orientation, the voxel size or the field-of-view?]
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 //Figure 1. Anatomical mri plotted **without** using ft_volumereslice before plotting// //Figure 1. Anatomical mri plotted **without** using ft_volumereslice before plotting//
  
-When you call the **[[reference:​ft_volumereslice]]** function on the anatomical MRI, it will apply the transformation matrix to the field **anatomy** and interpolate the anatomical data onto a new voxel-grid that is aligned with the axis of the head coordinate system. ​By default it will output ​the MRI volume with the same number ​of voxels and resolution. The output will have  a different orientation of the anatomy and consequently,​ a different transformation matrix. ​+When you call the **[[reference:​ft_volumereslice]]** function on the anatomical MRI, it will apply the transformation matrix to the field **anatomy** and interpolate the anatomical data onto a new voxel-grid that is aligned with the axis of the head coordinate system. ​If the input MRI has a coordsys field, the center of the volume ​will be shifted (with respect to the origin ​of the coordinate system) for the brain to fit nicely in the box. By default the voxel resolution ​is 1 mm. The output will have a different orientation of the anatomy and consequently,​ a different transformation matrix. ​
  
 Plotting the resliced anatomical MRI results in a figure with the usually desired orientation of the head (Figure 2). Plotting the resliced anatomical MRI results in a figure with the usually desired orientation of the head (Figure 2).