Hello,
How can I find out which resting state fMRI volumes are affected by the "pencil artifact" and which ones are not?
Also, where can I learn more about this artifact?
(this is the only resource I've been able to find: http://adni.loni.usc.edu/support/experts-knowledge-base/question/?QID=222 )
Thank you for your question to the ADNI MRI Core.
The artifact is not assessed by individual volume. It is basically a spatial pattern of decreased temporal SNR, hence it applies to the entire series.
ADNI MRI
Thank you for your question to the ADNI MRI Core.
The artifact is not assessed by individual volume. It is basically a spatial pattern of decreased temporal SNR, hence it applies to the entire series.
ADNI MRI