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Abstract #0148

The angular dependence of T1 relaxation in normal and abnormal patellae with histological correlation

Jiang Du 1 , Chantal Pauli 2 , Shihong Li 1 , Sheronda Statum 1 , Won Bae 1 , Eric Chang 1 , and Christine B Chung 1

1 Radiology, University of California, San Diego, San Diego, CA, United States, 2 Pathology, University Hospital Zrich, Zrich, Switzerland

Both T2 and T1rho have been employed to evaluate articular cartilage degeneration. The magic angle effect in T2 relaxation is well understood. However, the literature regarding T1rho relaxation mechanisms is inconsistent. Some researchers reported much reduced or negligible magic angle effect in T1rho, while other researchers have reported significant magic angle effect in T1rho relaxation. Furthermore, magic angle effects in normal vs. abnormal cartilage are unknown. In this study we aimed to systematically evaluate the magic angle effect on T2 and T1rho in histological confirmed normal and abnormal cartilage at 3T

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