Abstract #3927

Method of choice to increase the motion-robustness for free-breathing applications: Self-gating, motion-weighting, or extra-dimensional reconstruction

Thomas Benkert^1,2, Li Feng^1,2, Mark E Bittman^1,2, Justin Ream^1,2, Daniel K Sodickson^1,2, Ricardo Otazo^1,2, Kai Tobias Block^1,2, and Hersh Chandarana^1,2

¹Center for Advanced Imaging Innovation and Research (CAI2R), Department of Radiology, New York University School of Medicine, New York, NY, United States, ²Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, United States

Previously proposed techniques based on non-Cartesian or modified Cartesian sampling schemes allow for free-breathing acquisitions with solid motion-robustness. However, residual artifacts such as motion blurring often remain. Techniques including self-gating, motion-weighting, and extra-dimensional reconstruction have been proposed to further improve image quality.

Here, an analysis of these techniques is provided by performing multiple reconstructions of several volunteer and patient datasets, which were then evaluated by radiologists.

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.