> Can anyone pls tell me what are the units of the intensity of a voxel that
> are displayed when the crosshairs are moved about in an image.
They are in whatever units you want them to be. It depends on how the
original data were converted, and what the meaning of that data was. If the
original data were in DICOM format, and you used the DICOM conversion in SPM,
then the units should remain the same. See
http://medical.nema.org/dicom/2004.html for an explanation of what the values
may mean.
Images such as t and F images are essentially unitless. For segmented images
(seg1, seg2 etc), the values reflect probabilities.
Best regards,
-John
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