The Value of MR Diffusion-Weighted Imaging in Diagnosing the Benign and Malignant Breast Lesions / 实用放射学杂志

ABSTRACT

Objective To evaluate the value of diffusion-weighted imaging in distinguishing the benign and malignant breast lesions.Methods fifty-six female patients with pathologically proven breast lesions underwent MR diffusion-weighted imaging(MR-DWI)using 2 b values.The mean apparent diffusion coefficient(ADC)values and the relative ADC(rADC)values of lesions were measured and analyzed statistically by SPSS 13.0.Results(1)The mean ADC values of the malignant lesions and the benign lesions were(1.02?0.18)?10-3mm2/s and(1.61?0.32)?10-3mm2/s with b=500 s/mm2,(0.99?0.16)?10-3mm2/s and(1.59?0.33)?10-3mm2/s with b =1000 s/mm2,respectively.The mean ADC values of breast malignant lesions were lower significantly than that of the benign,and had statistical significance(P =0.001