To evaluate the ability of conventional MR Enterography (MRE) including coronal and axial T1/T2 weighted imaging and Diffusion-weighted imaging with different b-values(b=400,600,800,1000,1200,1500,3000 sec/mm2)to visually illustrate inflammatory lesions and neoplastic lesions in the ileocecal region comparing with colonoscopy or surgical results.As a result,MRE and DWI were capable of revealing the lesions in the ileocecal segment. DWI was superior to detect lesions especially inflammations comparing with conventional MRE, and the optimal b value of DWI for MRE was 800 sec/mm2 at 3T. Hyperintensity of ileocecal lesion on DWI with high b(﹥1000 sec/mm2) value wes more favor for tumor-like lesion.
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