Accurate and reliable quantitative diffusion MRI depends on correcting for spatially varying errors in applied diffusion gradients due to nonlinearity of the gradient coil fields. We measured the temporal and inter-scanner variability of a phantom-based correction protocol on four different scanners. Estimated errors in diffusion gradient b-value and direction were significant, and differed between scanners. Scanner differences in temporal stability indicated the need for site-specific calibrations.
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