Respiratory motion correction in F-18-FDG PET/CT impacts lymph node assessment in lung cancer patients

EJNMMI Research

Table 3 Mean and median score \(s\) for N1, N2 and N3 and different methods.

	Static	BG-MC	DDG-MC	p value
N1
Mean	4.76 (1.64)	5.00 (1.50)	4.88 (1.61)	0.004*
Median	6.00 [3.00]	6.00 [2.00]	6.00 [2.00]	0.004*
N2
Mean	4.08 (1.97)	4.12 (1.95)	4.23 (1.96)	0.036**
Median	4.50 [4.00]	5.00 [4.00]	5.00 [4.00]	0.036**
N3
Mean	2.77 (1.79)	2.87 (1.82)	2.93 (1.79)	0.295
Median	2.00 [3.00]	2.00 [3.00]	2.00 [3.00]	0.295
M1
Mean	3.35 (2.12)	3.35 (2.09)	3.30 (2.13)	0.850
Median	3.00 [5.00]	3.00 [5.00]	3.00 [5.00]	0.850

Standard deviation in round parentheses, interquartile range in square brackets
^* p values of post hoc test: 0.001, 0.026 and 0.122 for BG-MC versus static, BG-MC versus DDG-MC and static versus DDG-MC
^** p values of post hoc test: 0.676, 0.042 and 0.016 for BG-MC versus static, BG-MC versus DDG-MC and static versus DDG-MC