Association of the imaging characteristics of desmoplasia on digital breast tomosynthesis and the Ki-67 proliferation index in invasive breast cancer.

The association of the number and distribution of spicules with Ki-67 did not reach statistical significance in discriminating low from high Ki-67 expression lesions, and the P value in the ROC curve analysis for the spicule width was close to the significance level, probably due to insufficient power of the study.

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