MRI of the Cartilaginous and Fibrous Structure of the Meniscus of the Knee: In Vitro Studies at 11.7T
Hongda Shao 1 , Soorena A. Zanganeh 1 , Jihye Baek 1 , Daryl D'Lima 1 , Jiang Du 1 , Nikolaus M. Szeverenyi 1 , and Graeme Bydder 1
University of California, San Diego, CA,
Human and bovine menisci specimens were imaged at 11.7T
to demonstrate their cartilaginous and fibrous structure
using 2D spin echo and 3D gradient echo sequences.
Central and superficial cartilaginous regions were
readily differentiated from internal and peripheral
fibrous regions. Circumferential, radial, vertical,
oblique and curved fiber groups were shown and related
to the position of blood vessels and to the presence of
cartilage. Previously undescribed MRI features of the
meniscus were readily seen and may provide a basis for
understanding clinical images obtained at higher field
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