Self-gating techniques can be used to solve and compensate for cardiac or respiratory motion during MRI with free-breathing. In this work, a self-gating based motion correction scheme is proposed, and combined with a 3D variable-flip-angle TSE sequence for high-efficiency thoracic aorta imaging. Specifically, the slab-selective SPACE sequence is modified to acquire self-gating signals, which are used for detecting the respiratory motion. The image data is subsequently corrected based on the binning motion correction and image registration approach. The comparison was conducted on healthy volunteers and compared against a conventional diaphragmatic navigator-gated acquisition to assess the feasibility of the proposed scheme.
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