The traditional resting-state fMRI studies are based on the blood oxygenation level dependent (BOLD) contrast. Compared with BOLD, the oxygen extraction fraction (OEF) can more directly reflect the neuronal activities. However, due to the poor temporal resolution of existing OEF techniques, there is no study detecting resting-state networks with OEF contrast. In this study, the OEF contrast based resting-state networks were investigated through a newly proposed technique. Both seed-based correlation and independent component analysis were used and the results suggested that OEF can be used as an effective contrast to study resting-state brain networks.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords