Uniformity and symmetry considerations in sampling designs for 3D radial MRI

Uniformity in sampling measurements is a well known guiding principle in acquisition design for 3D radial MRI. Here, we argue that further improvement in image quality can be achieved by taking antipodal symmetry (or Hermitian symmetry) into account in the sampling design process. Herein, we developed a technique capable of generating very large, uniformly distributed points on the unit sphere that are endowed with antipodal symmetry. We observed a reduction of percent relative errors with respect to the ground truth, which was derived from a realistic numerical phantom, of about 10% as compared to the commonly used 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.

Click here for more information on becoming a member.