Re: [Marsbar-users] box ROI defined by coordinates

[Matthew B. <mat...@gm...>]

Hi,

> Maybe I can pick your brain(s) once more. I would like to define an ROI that
> is box-shaped, but slightly rotated in the sagittal plan (i.e. the z-value
> changes as a function of the y-value). With marsbar, one can define a box
> (ranges XYZ), but that box is always horizontal and can not be tilted. My
> question is whether it is possible to define an ROI by giving the
> coordinates of the corners, for instance the coordinates (XYZ in MNI space)
> that define the 8 corners of a cube. That would allow tilted ROIs.

That's a good idea for a feature, but there's no easy way to do that
in MarsBaR at the moment.

An ugly hack would be to:

Define the box which is straight in the Z plane.
Export to an image.
Rotate the image
Resample to the original with Realign-Reslice selecting the original
image (EPI etc) first and box image second
Import the resampled image as an ROI...

Best,

Matthew