Abstract #0070

Prospective motion correction with NMR markers using only native sequence elements

Alexander Aranovitch¹, Maximilian Haeberlin¹, Simon Gross¹, Benjamin E Dietrich¹, Bertram J Wilm¹, David O Brunner¹, Thomas Schmid¹, Roger Luechinger¹, and Klaas P Pruessmann¹

¹Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Zurich, Switzerland

A new method for tracking active NMR markers is presented. It requires no alterations of the MR sequence and can be used for prospective motion correction (PMC) in brain MRI. The proposed method collects high-frequency information present due to gradient switching from multiple short, temporally separated snippets within one or more TR of the given sequence. A tracking precision on the order of 10µm and 0.01° (RMS) for translational and rotational degrees of freedom is obtained. The method is demonstrated in-vivo with high-resolution 2D T2*-weighted GRE and 3D MPRAGE brain scans.

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.