. Author manuscript; available in PMC: 2014 Nov 1.

Published in final edited form as: Breast J. 2013 Nov-Dec;19(6):650–658. doi: 10.1111/tbj.12201

Table 4.

Variables significantly correlating with invasion

Variable	Correlation direction	p-value
Variable	Correlation direction	Reader 1	Reader 2
Lesion type
Presence of NMLE⁺	Negative for invasion	0.730	0.006^*
Presence of mass	Positive for invasion	0.012^*	0.001^*
NMLE
Enhancement confluence > 75%	Positive for invasion	0.015^*	0.142
Enhancing lesions, kinetics
Rapid initial kinetics	Positive for invasion	0.001^*	0.469
Persistent delayed kinetics	Negative for invasion	0.097	0.039^*
Washout delayed kinetics	Positive for invasion	0.515	0.012^*

p-values reaching significance. Within each category, significance was calculated by Fisher’s exact probability method comparing presence/absence of each variable to the presence/absence of invasion on excisional histopathology.

⁺

NMLE: Non-mass-like enhancement