Keywords: Sparse & Low-Rank Models, Image Reconstruction, Brain, Relaxometry, Quantitative Susceptibility mappingThe development of fast, accurate, and robust methods for multiparametric quantitative MRI (qMRI) at ultrahigh field strength remains an important topic of research. Here, we present a novel qMRI technique for the simultaneous quantification of water content, T1, T2*, and magnetic susceptibility, termed QRAGE. The proposed method combines a highly undersampled multi-echo MPnRAGE sequence with a model-based reconstruction approach. It acquires 171 different contrasts with full brain coverage and 1 mm isotropic resolution within 7:20 min from which the parametric maps are estimated. The accuracy and precision of QRAGE are demonstrated by comparison to gold-standard reference methods.
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