Through echo-combination, multi-echo echo-planar-imaging (ME-EPI) has shown improved performance for fMRI over single-echo (SE)-EPI. The high-performance gradients on a compact 3T scanner enable whole-brain high-spatial-resolution ME-EPI with reasonable echo times and comparable TR to SE-EPI. To evaluate the fidelity of the ME-EPI sequence in resting state fMRI and compare with that of SE-EPI sequence, seed-based and ICA-based functional connectivity (FC) analyses were applied to evaluate scan-time-dependency and accuracy improvement. ME-EPI extracted more and stronger FCs in seed-based connectivity analysis and produced higher sensitivity and accuracy in ICA-based method, compared to SE-EPI.
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