AIM: 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. RESULTS: 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/mm(2) when two lesions in the overdiagnosis group at both b values. CONCLUSION: DWI and the ADC value have potential for evaluating cancer extension. Copyright 2010 Elsevier Inc. All rights reserved.
AIM: 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. RESULTS: 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/mm(2) when two lesions in the overdiagnosis group at both b values. CONCLUSION: DWI and the ADC value have potential for evaluating cancer extension. Copyright 2010 Elsevier Inc. All rights reserved.