Abstract #1638

Distortion Correction using Reverse Polarity Gradient Method: Algorithm Optimization for Prostate Imaging using a Hybrid Weighting Metric

Maggie M Fung¹, Pauline Worters², Ek Tsoon Tan³, Arnaud Guidon⁴, and Ersin Bayram⁵

¹Applications & Workflow, GE Healthcare, New York, NY, United States, ²Applications & Workflow, GE Healthcare, Menlo Park, CA, United States, ³Global Research Center, GE, Niskayuna, NY, United States, ⁴Applications & Workflow, GE Healthcare, Boston, MA, United States, ⁵Applications & Workflow, GE Healthcare, Houston, TX, United States

Prostate Diffusion Weighted Echo Planar imaging (DW-EPI) routinely suffers from nonlinear geometric distortion due to B0 inhomogeneity. Although reverse phase-encoding polarity-based distortion correction method works well in the brain, the same technique causes artifacts in prostate DWI due to the low SNR nature of body DWI scans, and the inconsistency of image content between the reverse and forward polarity images. In this study, we showed that a hybrid weighting metric method could improve the distortion correction performance in prostate DWI.

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.