help > Rotation of angled subject
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Jan 27, 2022 02:01 PM | Bradley Delman - Mount Sinai Medical Center
Rotation of angled subject
Hi,
Some subjects just cannot lay still in a neutral position. I am looking for a way in Mricron to rotate a volume to visualize subjects in anatomic/orthogonal alignment. This would only require a few degrees of correction of pitch, roll and yaw, while retaining coordinates of the unrotated dataset.
Thanks in advance!
Some subjects just cannot lay still in a neutral position. I am looking for a way in Mricron to rotate a volume to visualize subjects in anatomic/orthogonal alignment. This would only require a few degrees of correction of pitch, roll and yaw, while retaining coordinates of the unrotated dataset.
Thanks in advance!
Jan 27, 2022 04:01 PM | Chris Rorden
RE: Rotation of angled subject
Interpolating and reslicing data is a lossy operation. You will
really want to use a dedicate tool like FSL's mcflirt or SPM's
motion correction algorithm to deal with these effects. If you use
AFNI, you can uses its motion censoring functions to detect and
eliminate noisy artifacts.
Jan 27, 2022 04:01 PM | Bradley Delman - Mount Sinai Medical Center
RE: Rotation of angled subject
Hi and thanks for the prompt feedback.
Because of our application I'm less concerned about lossiness. We need to identify landmarks on a dataset that we will then go back to use the initial (unrotated) data for. I just need to be sure the landmarks are consistently and evenly placed. Does that change options for rotating within Mricron?
Because of our application I'm less concerned about lossiness. We need to identify landmarks on a dataset that we will then go back to use the initial (unrotated) data for. I just need to be sure the landmarks are consistently and evenly placed. Does that change options for rotating within Mricron?