Diffusion-weighted MRI evaluation of breast cancer extension



      To investigate the feasibility of using diffusion-weighted MR imaging (DWI) to accurately measure breast cancer extension.

      Materials and Methods

      The extensions of 59 breast lesions were investigated on DW images and apparent diffusion coefficient (ADC) maps and compared to the pathological exams.


      Three groups were observed: accurate, overdiagnosis, and false negative. There were no significant differences seen in accurate or false-negative group when b was 500 and 1000 s/mm2 when two lesions in the overdiagnosis group at both b values.


      DWI and the ADC value have potential for evaluating cancer extension.


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