EJNMMI Research

Table 1 Overview of the baseline parameters of the four treatment groups of the imaging study

From: Effects of metformin on tumor hypoxia and radiotherapy efficacy: a [¹⁸F]HX4 PET imaging study in colorectal cancer xenografts

	Control	Metformin	Radiotherapy	Combination	P value
Animal weight (g)	24.7 ± 0.6	24.2 ± 0.9	24.7 ± 0.6	24.2 ± 0.5	1.0
Tumor volume (mm³)	382 ± 68	436 ± 79	336 ± 80	389 ± 81	0.7
Baseline [¹⁸F]HX4 TBR	2.33 ± 0.34	2.48 ± 0.41	2.78 ± 0.71	2.59 ± 0.46	1.0

Data are expressed as mean ± SEM. TBR, tumor-to-background ratio

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