Question
Question Posted 03/21/18:
Dear,
In the last communication, thank you so much for telling me the scan order for MRI images, which is in an interleaved fashion.
I am using AFNI for processing, i just get confused with one of the two options for slice timing correction after ruling out other options.
Does interleaved fashion refers to 'altplus' or 'alt+z2'?
Here are the options from AFNI:
S L I C E N U M B E R
tpattern 0 1 2 3 4 Comment
--------- --- --- --- --- --- -------------------------------
altplus 0 600 200 800 400 Alternating in the +z direction
alt+z2 400 0 600 200 800 Alternating, but starting at #1
altminus 400 800 200 600 0 Alternating in the -z direction
alt-z2 800 200 600 0 400 Alternating, starting at #nz-2
seqplus 0 200 400 600 800 Sequential in the +z direction
seqminus 800 600 400 200 0 Sequential in the -z direction
Thank you so much for your precious time and I'm looking forward to your reply!
Peng
Dear,
In the last communication, thank you so much for telling me the scan order for MRI images, which is in an interleaved fashion.
I am using AFNI for processing, i just get confused with one of the two options for slice timing correction after ruling out other options.
Does interleaved fashion refers to 'altplus' or 'alt+z2'?
Here are the options from AFNI:
S L I C E N U M B E R
tpattern 0 1 2 3 4 Comment
--------- --- --- --- --- --- -------------------------------
altplus 0 600 200 800 400 Alternating in the +z direction
alt+z2 400 0 600 200 800 Alternating, but starting at #1
altminus 400 800 200 600 0 Alternating in the -z direction
alt-z2 800 200 600 0 400 Alternating, starting at #nz-2
seqplus 0 200 400 600 800 Sequential in the +z direction
seqminus 800 600 400 200 0 Sequential in the -z direction
Thank you so much for your precious time and I'm looking forward to your reply!
Peng
Response posted 03/21/18 by Jeff:
Is this ADNI-2 or ADNI-3 data? If ADNI-3 is it "advanced" with SMS acceleration, or "basic"?