[Brains-users] Intake

[Eugene Zeien]

This is not the definitive answer, but I'll try.  At the University of Iowa,
we have a longitudinal MR study.  The acquisition of scans has spanned 20
years.  When a new scan comes in, the person who does the standard workup
needs to check and see if this subject had a previous scan.  If so, the
earliest scan of the subject is referred to as their "intake".  Subsequent
scans are "follow-ups" usually at 2 years, 5, 7, 9, 12..  Follow-up scans
are fitted to the intake in order to reduce ACPC alignment noise which may
be introduced by minor inter-rater variability in selecting the AC and PC
points, etc.  If you are not conducting a longitudinal MR study, you should
simply skip checking for an intake scan.

MR5 = 1.5x1.015x1.015 mm Coronal T1, 3.0x1.015x1.015 mm PD/T2 Coronal (may be 4.0)
MR6 = 1.5x0.7x0.7 mm Coronal T1, 1.8x0.7x0.7 mm Coronal T2 (0.7x0.7 average, FOV
	dependent upon head size)

There are probably other steps in the Standard Workup Guide that are only
meaningful, comprehensible within our lab.

Lee, Buyean wrote:
> Hi,
> 
> According to the Brains2 Standard Workup Manual, we are supposed to check
> intake scan for MR6 scans.
> 
> First, I would like to know what the difference between MR5 and MR6 scans.
> 
> Second, when I check my MRI (analyze file format converted from DICOM), I
> found that my MRI has intake scan.
> 
> Do I need to pre-process my MRIs before running any other processes using
> Brains2?
> If I need to do pre-processing with my MRIs, it would be great help if
> somebody can send a step-by-step guide for this process.
> Somehow, it was not easy to follow the Appendix.
> 
> Thank you,
> 
> Buyean
> 
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