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| The correlation between the degree of meniscus injury of knee osteoarthritis and
T1 rho, T2 mapping of the articular cartilage |
| ZHAO Min, LIU Hong-yan, WANG Guo-hua, ZHANG Bing, GAO Jian, ZHAO Hong-fei |
| Department of Radiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao Shandong 266011, China |
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Abstract Objective: To investigate the relationship between T1 rho and T2 values of articular cartilage and meniscus injury grading in patients with knee osteoarthritis(OA). Methods: Eighty patients with knee OA were selected. The 3.0T MRI(GE 750 Discovery) was used to scan the conventional knee sequence and the T1 rho and T2 mapping sequences. The degree of meniscus injury was graded and the T1 rho and T2 values of articular cartilage were measured. Results: With the improvement of meniscus grading, the T1 rho and T2 value of adjacent articular cartilage increased. The T1 rho and T2 relaxation time of articular cartilage differed significantly between different meniscus grading(P<0.05). Conclusion: Before the morphological changes of articular cartilage, the damage of articular cartilage can be evaluated according to the meniscus injury, which has important clinical significance for the intervention of early OA patients.
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Received: 16 January 2019
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