IVIM (Intravoxel incoherent motion) provides perfusion quantification without the need for intravenous contrast injection, and has been used to the spinal bone marrow lesions1,2. However, diffusion weighted imaging is prone to image deformation, especially with a large FOV. Hence the quantitative measurement of IVIM in spinal bone morrow may be affected. Reduced FOV DWI is known to reduce the level of image distortion, and the purpose of this study is to compare the IVIM parameters obtained using full FOV or reduced FOV imaging.
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