T2*-weighted imaging is an important diagnostic tool to evaluate normal and pathological tissues due to its sensitivity to iron deposition. This comes with high sensitivity to magnetic field inhomogeneities within a voxel, resulting in susceptibility artifacts. These artefacts are largely reduced at higher resolutions; high-resolution protocols however lead to clinically unfeasible scan times with multi-echo gradient echo sequences. Here, we propose a compressed sensing multi-echo GRE acquisition for 7T to obtain 0.8 mm isotropic R2* maps of the whole brain in <7 minutes and with substantially reduced artefacts. Preliminary qualitative and quantitative validations are performed on healthy subjects.
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