The Optimized B Value of Breast Diffusion Weighted MRI

JING ZHANG¹, LIU QUAN CHENG¹, YONG GUO², FEI SUN³

DWI has been reported to have the potential of differentiation between malignant and benign breast tumor. To optimize the b value, we compared the ADC values of benign tumors with malignant tumors using DWI with different b values (range from 0 to 2600 s/mm2) in the same patient. When b value was in the range of 600 ~ 1200 s/mm2, the ADC of malignant tumor stayed relatively invariable and was statistically different with benign tumor. For good image quality and valid differentiation between malignant and benign tumor, the optimized b value is in the range of 600~1200 s/mm2.