Identification of the vascular and avascular zones of human meniscus with Intravoxel incoherent motion reduced FOV Diffusion weighted MR imaging

Meniscal tears are an indication for arthroscopic knee surgery. The tears in the vascular portion of the meniscus is called red zone and tears in the avascular portion is defined white zone. Although the demarcation of the zones can be defined in anatomy, it is hard to gain a boundary through conventional MR sequence. Intravoxel incoherent motion theory provides information about microcirculation of blood in addition to the pure molecular diffusion. In this study, rFOV DWI technology and IVIM model were used to estimate the vasculature of the red and white zone of meniscus by using the IVIM perfusion parameters.

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