Geometric distortion in echo planar imaging-spin echo (EPI-SE) images caused by a non-uniform B0 field remains an issue in clinical imaging. In elastography, this geometric distortion leads to systematic errors in stiffness estimates. While blip-up blip-down correction is routinely used in diffusion imaging in the head, this correction is not used in MR elastography. The purpose of this work is to assess the effect of applying distortion correction on elastography scans and the resulting stiffness estimates. We show that the corrections provide reduced variability in stiffness maps with no additional acquisition time required.
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