Abstract #4494

Diffusion Weighted MRI of the Fibrous Structure of the Meniscus of the Knee: In Vitro Studies at 11.7T

Qun He^1,2, Jihye Baek¹, Daryl D'Lima¹, Jiang Du¹, Nikolaus M. Szeverenyi¹, and Graeme Bydder¹

¹University of California, San Diego, San Diego, CA, United States, ²Ningbo Jansen NMR Technology Co., Ltd., Cixi, Zhejiang, China, People's Republic of

In vitro high resolution diffusion weighted imaging of the meniscus of the knee at 11.7T shows detailed structure of fiber groups that has not previously be seen with MRI. There were clearly differentiated from cartilaginous areas of the meniscus. The diffusion contrast adds to that which results from the magic angle effect. This acts as a T₂ filter. The diffusion contrast has more flexibility than magic angle contrast since it is not dependent on B₀ and in principle any diffusion direction can be used. The results may be translatable to high field clinical systems.

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