TABLE 3

Correlation Between Tumor PET Imaging Parameters and Histologic–Biologic Characteristics of Breast Cancer

Parameter	SUV1_max	SUV2_max	ΔSUV_max	BF1	BF2	ΔBF
SBR grade (I–II vs. III)	<0.001^*	0.002^*	0.040	NS	NS	NS
Body mass index (cutoff, 30)	NS	0.023	NS	0.002^*	0.033	NS
Histologic type (ductal vs. lobular)	0.041	NS	NS	NS	NS	NS
HER2 overexpression (yes vs. no)	NS	<0.001^*	<0.001	NS	<0.001^*	<0.001^*
HR status (positive vs. negative)	<0.001^*	0.022	0.014	NS	NS	NS

↵* Statistically significant, using Bonferroni critical P value (multiple-comparisons corrections), calculated at 0.005.
SBR = Scarff–Bloom–Richardson grade; NS = not significant; HR = hormone receptor.
Data are P values obtained with Mann–Whitney test. Age, T stage, lymph node involvement, and menopausal status did not significantly correlate with tumor imaging characteristics.