Table A1.

[¹⁸F]-FES uptake in liver metastases per ER status and per PET outcome parameter.

Parameter	ROI Size	ER+ (n = 17) (Median [IQR])	ER− (n = 6) (Median [IQR])	p-Value
SUVmax	whole-tumor	11.4 [6.9–12.8]	7.3 [2.9–11.2]	0.050
SUVmean	whole-tumor	7.3 [4.4–9.5]	4.3 [1.6–7.4]	0.093
SUVmin	whole-tumor	3.9 [2.5–7.7]	2.2 [1.0–4.1]	0.141
SUVmax	two-thirds	8.7 [4.6–10.8]	4.6 [2.0–8.1]	0.069
SUVmean	two-thirds	6.4 [3.6–9.2]	3.2 [1.3–5.9]	0.086
SUVmin	two-thirds	3.9 [2.6–8.3]	2.2 [1.1–4.8]	0.123
SUVmax	one-third	6.7 [3.6–9.2]	3.1 [1.4–5.4]	0.069
SUVmean	one-third	5.2 [3.2–8.6]	2.5 [1.2–5.1]	0.059
SUVmin	one-third	4.9 [2.7–8.3]	2.2 [1.1–4.9]	0.080
TBRmax	whole-tumor	0.83 [0.64–1.06]	0.43 [0.18–0.69]	0.008
TBRmean	whole-tumor	0.56 [0.38–0.83]	0.27 [0.10–0.44]	0.030
TBRmin	whole-tumor	0.30 [0.20–0.69]	0.14 [0.06–0.25]	0.050
TBRmax	two-thirds	0.58 [0.40–0.94]	0.27 [0.12–0.51]	0.036
TBRmean	two-thirds	0.42 [0.30–0.81]	0.20 [0.08–0.35]	0.021
TBRmin	two-thirds	0.30 [0.20–0.74]	0.14 [0.07–0.29]	0.069
TBRmax	one-third	0.43 [0.31–0.81]	0.20 [0.09–0.32]	0.017
TBRmean	one-third	0.36 [0.28–0.77]	0.16 [0.08–0.30]	0.014
TBRmin	one-third	0.32 [0.24–0.74]	0.14 [0.07–0.29]	0.030

Abbreviations: ER = estrogen receptor; ROI = region-of-interest; IQR = interquartile range; SUV = standardized uptake value; TBR = tumor-to-background ratio.