FRONSAC encoding, which adds a rapidly oscillating low-amplitude nonlinear gradient to a standard undersampled trajectory based on linear gradients, has been shown to significantly improve k-space coverage and parallel imaging reconstructions. This abstract further shows that a fixed FRONSAC waveform improves image quality for Cartesian trajectories of various FOV and resolution, while avoiding many of the pitfalls of other highly efficient gradient trajectories. Results show that FRONSAC provides better reconstruction than Cartesian encoding alone, while offering better resilience to delays and off-resonance effects than non-Cartesian trajectories, such as spiral.
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