Hi Douglas
it really depends what you are using it for. MPRAGE and it's variants
work quite well, but for example if you are planning a longitudinal study
you might want a multi-echo mprage to minimize distortions across
session.
cheers
Bruce
On Wed, 26 Feb 2014, Douglas Wojcik wrote:
Good afternoon;
I am hoping you can help me answer a pretty quick & easy question….
I am trying to identify the best MRI protocol to use for Freesurfer
analysis… When I look at the FAQ:
Data Requirements
The processing procedures for the creation of cortical models require
good quality T1 weighted MRI data, such as a Siemens MPRAGE (examples
of appropriate Siemens scanner protocols) or GE SPGR sequence with
approximately 1mm3 resolution (although a variety of quality data sets
can be processed with additional manual intervention). Thickness
should not exceed 1.5mm (~1mm^3 is ideal). The protocols specified for
the ADNI project are excellent examples to follow. The best FreeSurfer
processing results come from scans having excellent gray/white matter
contrast.
The link to the ADNI project protocols is broken…I think that they should
be
here: http://adni.loni.usc.edu/methods/documents/mri-protocols/
Thanks
Douglas
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