Texture Analysis Improves the Value of Pretreatment 18F-FDG PET/CT in Predicting Interim Response of Primary Gastrointestinal Diffuse Large B-Cell Lymphoma
Table 3
Differences between the CR group and non-CR group.
Parameter
Median (interquartile range)
value
CR group
Non-CR group
SUVmax
15.15 (8.73–21.75)
23.95 (21.45–29.03)
0.001
MTV(cm3)
17.80 (11.70–53.08)
145.10 (66.63–613.90)
0.009
PET texture features
Mean
3983.04 (3024.75–7348.02)
7348.96 (5402.80–10440.45)
0.028
SD
1781.05 (1042.33–2554.85)
2878.15 (1933.98–5193.57)
0.044
Max-frequency
3.00 (2.00–4.00)
5.00 (3.00–7.25)
0.019
Maximum
9324.50 (6768.75–16080.00)
17682.00 (11709.25–24430.00)
0.031
50th percentile
3705.50 (2620.50–6841.25)
6699.00 (4841.00–9395.25)
0.028
75th percentile
4789.00 (3903.75–9199.00)
8963.50 (6721.50–13698.00)
0.035
90th percentile
6081.00 (5408.50–10572.75)
10257.00 (8360.00–16868.50)
0.039
Entropy
6.3777 (5.4630–7.0874)
7.7240 (7.0291–8.5527)
0.007
Volume (mm3)
41504 (15920–85760)
226272 (83760–683088)
0.006
Max-diameter (mm)
48.44 (36.50–75.96)
85.62 (68.95–142.09)
0.011
EntropyGLCM10
9.02 (7.16–9.76)
11.45 (8.51–12.56)
0.015
EntropyGLCM12
9.07 (7.36–9.84)
11.38 (8.70–12.56)
0.011
EnergyGLCM10
0.001880 (0.000961–0.005434)
0.000363 (0.000172–0.002750)
0.049
EnergyGLCM11
0.001550 (0.000863–0.004614)
0.000364 (0.000167–0.002392)
0.039
EnergyGLCM12
0.001757 (0.000951–0.005436)
0.000388 (0.000172–0.002414)
0.035
EnergyGLCM13
0.001544 (0.000821–0.004535)
0.000338 (0.000167–0.002186)
0.039
CT texture features
Max-frequency
31.50 (23.75–81.00)
99.50 (46.00–276.25)
0.011
Max-diameter (mm)
52.05 (40.58–89.65)
75.15 (64.88–124.18)
0.024
The features selected in the second step of feature selection.
