Dear SPMers,
Just a simple question on smoothing. As I learnt from the list that the
FWHM should be at least 2 times the pixel size, I would like to know if this
rule of thumb is referring to the pixel size of the original images (raw
data) or the pixel size of the normalized and resliced images.
For instance, if the pixel size of raw MR data is 1.09x1.09x6.5 and the
pixel size of the processed data is 1x1x2, should I use FWHM 2x2x12 or
2x2x4?
Thank you very much.
Best regards,
Lucullus Leung
Queen Mary Hospital
Hong Kong
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