The application of magnetic resonance T2-mapping and DWI imaging in diagnosis of early cartilage degeneration of the knee joint

Abstract

Objective To study the application of magnetic resonance T2-mapping and diffusion weighted imaging(DWI) in diagnosis of early cartilage degeneration of the knee joint. Methods 56 patients with clinical intends to diagnosis of early osteoarthritis of the knee were set as observation group, another 56 healthy volunteers were selected as healthy control group.The subjects of the two groups were given knee MRI T2 mapping and DWI, the T2 acquisition value and ADC value of the two groups were analyzed and compared. Results In the observation group, the side of the femoral (37.18±4.09), lateral tibial (32.16±2.75) and hip (34.56±4.21) were significantly lower than those in the healthy control group[femoral side (49.87±5.02), tibial side (47.34±5.01), hip surface (51.23±5.19)](t=20.16, 18.36, 23.65, all P<0.05). Conclusion Magnetic resonance T2-mapping and DWI imaging can be found in the early knee cartilage degeneration, can lead to the rise of T2 and ADC value, so there is no cartilage damage to the cartilage damage. Key words: Magnetic resonance imaging; Cartilage; Osteoarthritis, knee