Sub millimeter coregistration of functional maps accross imaging sessions

Jérémy Lecoeur (1) , Feng Wang (2) , Li Min Chen (2) , Rui Li (1) , Malcolm J. Avison (2) , Benoit M. Dawant (1)

1 Department of Electrical Engineering & Computer Science [Nashville]
2 Department of Radiology and Radiological Science

fMRI is ideally suited for longitudinal studies of structural and functional brain plasticity. It is now feasible to collect functional brain maps with spatial resolutions of ~100 micrometers in ultra-high field systems. While these data sets are intrinsically coregistered for studies collected within a session from immobilized animals, the accuracy of coregistration across imaging sessions (or within, in the presence of head motion) is limited by the accuracy with which structural and functional images can be coregistered The goal of this study is to develop an accurate and reliable registration process for longitudinal acquisitions of functional MRI scans providing partial brain coverage at very high resolution in order to quantify functional and structural changes across time

Domaines: Imagerie médicale

Jérémy Lecoeur, Feng Wang, Li Min Chen, Rui Li, Malcolm J. Avison, et al.. Sub millimeter coregistration of functional maps accross imaging sessions. International Society for Magnetic Resonance in Medicine Meeting, May 2011, Montreal, Canada. pp.1625. ⟨hal-00599762⟩