TABLE 3

Summary of SUV and Lesion-to-Liver SUV Ratio for Individual Group Lesions in ¹⁸F-FDG and ¹¹C-Acetate Metabolism

Group	No. of patients	No. of lesions	¹⁸F-FDG*			¹¹C-Acetate*
Group	No. of patients	No. of lesions				SUV_max	Lesion-to-liver ratio	SUV_max	Lesion-to-liver ratio
Ia (≤3 HCC lesions)^†	32	55	3.51 ± 1.38	1.45 ± 0.49	7.33 ± 2.02	1.96 ± 0.63
II (non-HCC malignant lesions)	13	16	6.25 ± 1.62	2.81 ± 0.78	3.84 ± 0.48	0.98 ± 0.04
III (benign lesions)	5	10	2.21 ± 0.46	0.99 ± 0.25	3.27 ± 0.37	0.93 ± 0.30

↵* Mean ± SD.
↵^† Group Ib patients (n = 7) are not tabulated because they have diffuse or multifocal metastasis. Many lesions could not be clearly demarcated, and some diffusely infiltrative types were difficult to differentiate from nontumor liver tissue.