Abstract #0079

Local Analysis of T1ρ, T2, and R2–R1ρ Compositional MR Imaging in Patients with ACL Injury Using Voxel-Based Relaxometry

Colin Russell¹, Valentina Pedoia¹, Keiko Amano¹, and Sharmila Majumdar¹

¹Radiology and Biomedical Imaging, University of California, San Francsico, San Francisco, CA, United States

This multicenter study employs VBR as a novel technique to analyze patients with ACL tears at the time of injury and 6 months after ACL reconstruction. T_1ρ and T₂ analysis, correlation, and dispersion difference (R₂–R_1ρ) are three methods employed to highlight significant cartilage changes. The most posterior region of the posterior lateral tibia and the patella indicated partial cartilage recovery 6 months after reconstruction, demonstrated by decreasing T_1ρ and T₂, decreased T_1ρ T₂ correlation baseline to 6 months, and dispersion differences (R₂–R_1ρ). The trochlea displayed symptoms of cartilage degeneration, such as elevated T_1ρ and T₂ and dispersion differences.

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.