open-discussion > Dramatic Help Registration T1- b0 image
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May 23, 2022 01:05 PM | Laura Ludovica Gramegna - University of Bologna
Dramatic Help Registration T1- b0 image
Dear Community,
In my lab we have recently developed a high-performing pipeline able to automatic reconstruct the anterior optic pathway (that is cool)
Unfortunately, we are experiencing big troubles registering the morphological T1 images to the b0 image, making a DICE comparison impossible for quality check
Does anyone know a good non-linear registration tool able to efficiently register the b0 image to the T1 ?
That would be so lovely
Thank you in advances
Laura Ludovica Gramegna !
In my lab we have recently developed a high-performing pipeline able to automatic reconstruct the anterior optic pathway (that is cool)
Unfortunately, we are experiencing big troubles registering the morphological T1 images to the b0 image, making a DICE comparison impossible for quality check
Does anyone know a good non-linear registration tool able to efficiently register the b0 image to the T1 ?
That would be so lovely
Thank you in advances
Laura Ludovica Gramegna !
May 23, 2022 02:05 PM | Anthony Dick - Florida International University
Dramatic Help RegistrationT1- b0 image
Jun 8, 2022 06:06 PM | Alex Dresner
Dramatic Help RegistrationT1- b0 image
Hi Laura,
The registration errors are likely to result from distortions in the B0 images. Are you using any tools to correct for distortion? FSL had some, for example, that required an estimate of the field map (per-subject B0 measurement) but would probably get you closer with even a generic field map - using an average one for all of your subjects, since the distortions will be somewhat similar.
Otherwise you have a challenge, both distorted DTI source images and differences in image contrast between the B0 and the T1. Do you have a T2w image for your subjects?
Regards,
Alex