Keywords: Low-Field MRI, Low-Field MRI, Spatial encoding field, Evaluation method
Motivation: For non-linear encoding technology for portable MRI, the evaluation of encoding capability is by checking the image quality, which is time-consuming and hard to integrate into an optimization process.
Goal(s): Here, we aim to propose a fast evaluation method for the encoding capability of rotational spatial encoding magnetic field (rSEM).
Approach: The filling factor of local k-spaces is proposed to evaluate the encoding capability of an rSEM with non-linear gradients.
Results: The proposed evaluation of encoding capability is fast and agrees with the resultant image quality. It was used for angle selections to accelerate imaging, showing improved image quality experimentally.
Impact: A rapid evaluation method for the encoding capability of rSEMs with non-linear gradients is validated using simulation and experimental data. It allows fast evaluations of SEMs without checking the image quality in a design process, which accelerate the optimization.
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