You do need to take it into account, but you cannot if one group is 1.5T and the other is 3T.
On 5/28/17 10:41 AM, Dr Sampada Sinha wrote:
Dear freesurfer experts,
I am presently trying to calculate hippocampal volume for two different study groups. One study group images (MDD) was acquired on 1.5T and the other age-matched study group (Healthy controls) on 3T MRI. On doing the statistics I have significant differences in the hippocampal volume correlating with their cognitive scores between the two study groups. Do I need to take into consideration different scanner parameters when doing the statistics? How do I go about it?
Thanks for your help.
Kind regards,
Sam
-- Dr Sampada Sinha Research medical scientist (B) Department of Geriatric Mental Health (DGMH) King George Medical University Lucknow-226003 , Uttar Pradesh India
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