A common way to seed tractography is thresholding the Fractional Anisotropy (FA). This technique is problematic for aging diffusion MRI studies because the FA decreases dramatically in regions of White Matter Hyperintensities (WMH) and thus, the tractography can erroneously start or stop in these WMH regions. We show the importance for tractography pipelines to correct for WMH in their tracking masks. We show that the non-correction can lead to approximately 15% erroneous streamlines, which are false connections that can pollute the structural connectome and lead to misinterpretations.
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