Abstract #2744

Accelerating 3D-T1ρ cartilage imaging using signal compensated low-rank plus sparse matrix decomposition

Yuanyuan Liu^1,2, Weitian Chen³, Xin Liu¹, Hairong Zheng¹, Dong Liang^1,2, and Yanjie Zhu¹

¹Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China, ²Research center for Medical AI, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China, ³Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Hong Kong, China

The quantitative 3D-T_1ρ mapping requires multiple T_1ρ-weighted images with different spin lock times (TSLs) to obtain the T_1ρ map, which makes the acquisition time very long. In this work, a signal compensation strategy with low-rank plus sparse model (SCOPE) was used to reconstruct T_1ρ-weighted images from highly undersampled data. We provide the reconstructed images and the estimated T_1ρ maps at an acceleration factor up to 8.5 in fast 3D-T_1ρ cartilage imaging.

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.