Time (min) | Target area | Background area | p value |
15 | 287.91 ± 37.19 | 262.96 ± 30.43 | 0.0020** |
30 | 259.12 ± 31.75 | 247.55 ± 27.59 | 0.0017** |
45 | 251.46 ± 25.26 | 243.42 ± 24.23 | 0.00097*** |
60 | 250.79 ± 27.82 | 242.47 ± 23.41 | 0.0033** |
75 | 249.40 ± 24.95 | 241.46 ± 22.54 | 0.0025** |
90 | 247.50 ± 24.75 | 241.23 ± 21.48 | 0.0051** |
105 | 246.95 ± 22.46 | 240.61 ± 21.12 | 0.0062** |
120 | 245.96 ± 22.37 | 241.03 ± 20.97 | 0.00053*** |