Table 3. Comparison of different parameters among different groups.
| Parameters | PD-L1 negative | PD-L1 positive | t/z value | P value |
|---|---|---|---|---|
| ADC (×10−3 mm2/s) | 1.32±0.31 | 1.34±0.22 | −0.203 | 0.840a |
| D (×10−3 mm2/s) | 1.18±0.22 | 1.03±0.09 | 3.921 | <0.001a# |
| D* (×10−3 mm2/s) | 26.82 (8.52, 55.91) | 30.41 (15.52, 61.49) | −0.629 | 0.529b |
| f (%) | 33.27 (23.12, 42.67) | 24.11 (15.09, 33.98) | −2.497 | 0.013b# |
| MTRasym (3.5 ppm) (%) | 2.08 (1.01, 2.95) | 3.03 (2.00, 5.03) | −3.308 | 0.001b# |
| SUVmax (g/cm3) | 5.49 (3.79, 9.73) | 11.64 (7.56, 17.98) | −4.505 | <0.001b# |
| MTV (cm3) | 4.98 (1.90, 13.53) | 18.02 (5.89, 34.31) | −3.610 | <0.001b# |
| TLG (g) | 11.74 (4.47, 59.87) | 83.42 (40.81, 195.27) | −4.328 | <0.001b# |
Data are presented as mean ± SD or median (interquartile range). a, independent t-test; b, Mann-Whitney U test. #, indicates the comparison with statistical significance. PD-L1, programmed cell death-ligand 1; ADC, apparent diffusion coefficient; D, diffusion coefficient; D*, pseudo diffusion coefficient; f, perfusion fraction; MTRasym (3.5 ppm), magnetization transfer ratio asymmetry at 3.5 ppm; SUVmax, maximum standardized uptake value; MTV, metabolic tumor volume; TLG, total lesion glycolysis.