Hepatic 18F-FDG Uptake Measurements on PET/MR: Impact of Volume of Interest Location on Repeatability

Table 1

SUV and SUL max, mean, and peak and paired difference with standard deviation measurements superior to, inferior to, and at the level of the portal vein and left lobe of the liver in first (test) and second (retest) scans.

	Superior	Inferior	Portal	Left
SUV max test	2.52 ± 0.53	2.1 ± 0.31	2.24 ± 0.44	2.47 ± 0.47
SUV max retest	2.21 ± 0.55	1.97 ± 0.38	1.99 ± 0.40	2.12 ± 0.51
Paired difference	0.31 ± 0.45	0.14 ± 0.21	0.26 ± 0.36	0.35 ± 0.48
SUV mean test	1.95 ± 0.41	1.76 ± 0.26	1.83 ± 0.33	1.92 ± 0.35
SUV mean retest	1.77 ± 0.46	1.62 ± 0.29	1.65 ± 0.32	1.7 ± 0.41
Paired difference	0.18 ± 0.26	0.14 ± 0.14	0.18 ± 0.2	0.21 ± 0.26
SUV peak test	2.19 ± 0.48	1.92 ± 0.28	1.99 ± 0.37	2.15 ± 0.4
SUV peak retest	1.9 ± 0.51	1.78 ± 0.3	1.8 ± 0.36	1.9 ± 0.42
Paired difference	0.28 ± 0.33	0.14 ± 0.16	0.19 ± 0.24	0.25 ± 0.3
SUL max test	1.79 ± 0.4	1.45 ± 0.23	1.6 ± 0.31	1.74 ± 0.32
SUL max retest	1.58 ± 0.34	1.34 ± 0.25	1.42 ± 0.27	1.5 ± 0.34
Paired difference	0.21 ± 0.33	0.10 ± 0.16	0.18 ± 0.23	0.24 ± 0.3
SUL mean test	1.4 ± 0.3	1.26 ± 0.2	1.3 ± 0.23	1.37 ± 0.25
SUL mean retest	1.26 ± 0.31	1.16 ± 0.21	1.18 ± 0.22	1.22 ± 0.29
Paired difference	0.14 ± 0.15	0.1 ± 0.1	0.19 ± 0.13	0.15 ± 0.17
SUL peak test	1.56 ± 0.35	1.37 ± 0.2	1.43 ± 0.26	1.54 ± 0.28
SUL peak retest	1.4 ± 0.32	1.26 ± 0.21	1.28 ± 0.24	1.35 ± 0. 3
Paired difference	0.17 ± 0.17	0.11 ± 0.12	0.15 ± 0.16	0.18 ± 0.21