T1ρ relaxation time of the meniscus and its relationship with T1ρ of adjacent cartilage in knees with acute ACL injuries at 3T R.I. Bolbos, Ph.D., T.M.

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T1ρ relaxation time of the meniscus and its relationship with T1ρ of adjacent cartilage in knees with acute ACL injuries at 3T R.I. Bolbos, Ph.D., T.M. Link, M.D., C. Benjamin Ma, M.D., S. Majumdar, Ph.D., X. Li, Ph.D. Osteoarthritis and Cartilage Volume 17, Issue 1, Pages 12-18 (January 2009) DOI: 10.1016/j.joca.2008.05.016 Copyright © 2008 Terms and Conditions

Fig. 1 (A) Sagittal T2-weighted fat-saturated FSE images revealing an ACL tear (arrow). (B) A meniscal tear at the posterior horn of LM (arrow) as well as BMEL are observed (asteriks). Osteoarthritis and Cartilage 2009 17, 12-18DOI: (10.1016/j.joca.2008.05.016) Copyright © 2008 Terms and Conditions

Fig. 2 (A) Meniscus (blue) and cartilage segmented sub-compartments – anterior (green), central (red) and posterior (yellow) – displayed on a SPGR image. (B) T1ρ color map overlaid on a fat-saturated T2-weighted FSE image obtained in a patient, with higher T1ρ values; a meniscal tear (arrow) is evident at the posterior horn of meniscus. Osteoarthritis and Cartilage 2009 17, 12-18DOI: (10.1016/j.joca.2008.05.016) Copyright © 2008 Terms and Conditions

Fig. 3 T1ρ data from the lateral side of the knee: comparison between ACL-injured patients and controls, both for meniscus and cartilage. Osteoarthritis and Cartilage 2009 17, 12-18DOI: (10.1016/j.joca.2008.05.016) Copyright © 2008 Terms and Conditions

Fig. 4 T1ρ data from medial side of the knee: comparison between ACL-injured patients and controls, both for meniscus and cartilage. Osteoarthritis and Cartilage 2009 17, 12-18DOI: (10.1016/j.joca.2008.05.016) Copyright © 2008 Terms and Conditions

Fig. 5 A significant correlation was found at the lateral side of the knee between T1ρ values of the posterior horn of the meniscus and T1ρ values of posterior sub-compartment of lateral tibial cartilage, demonstrating a strong injury-related relationship between the two tissues. Osteoarthritis and Cartilage 2009 17, 12-18DOI: (10.1016/j.joca.2008.05.016) Copyright © 2008 Terms and Conditions