A simple BOLD contrast model based on functional activation pattern and k-space trajectory

This work presents a simple theory that accounts for the interaction of any k-space trajectory and echo time on BOLD contrast. The theory quantifies the need for different TEs to obtain best contrast for different acquisition trajectories. It also allows comparison of BOLD contrast available from different trajectories over various echo times. The theory was tested by performing high-resolution fMRI in superior colliculus using a variety of single- and dual-echo spiral trajectories and EPI as echo time was varied. . The proposed theory shows a satisfactory fit to the empirical data.

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.

Click here for more information on becoming a member.