Age (years) |
56.6 ± 8.5 |
51.6 ± 7.7 |
0.244 |
Size (cm3) |
10.39 ± 3.25 |
4.65 ± 2.61 |
0.013* |
Respiratory symptoms |
n, present:absent |
11:4 |
4:14 |
0.037* |
Unenhanced CT density (Hu) |
37.57 ± 15.61 |
43.64 ± 13.09 |
0.312 |
Arterial phase CT density (Hu) |
67.09 ± 16.99 |
69.79 ± 18.67 |
0.767 |
Venous phase CT density (Hu) |
91.36 ± 20.43 |
97.14 ± 21.38 |
0.373 |
Delayed phase CT density (Hu) |
98.73 ± 26.53 |
74.71 ± 24.97 |
0.044* |
Net enhancement value (Hu) |
61.47 ± 12.18 |
57.11 ± 10.28 |
0.205 |
Peak enhancement value (Hu) |
98.73 ± 26.53 |
97.14 ± 21.38 |
0.828 |
Enhancement washout value (Hu) |
3.8 ± 8.14 |
20.78 ± 10.22 |
< 0.001* |
TTP (s) |
100.81 ± 19.01 |
62.67 ± 20.96 |
< 0.001* |
Accelerated index |
0.63 ± 0.17 |
0.99 ± 0.25 |
< 0.001* |
Ki-67 index |
n, low:high# |
9:6 |
17:1 |
0.030* |
Overlying vessel sign |
n, present:absent |
13:2 |
8:10 |
0.027* |
Prominent pulmonary artery sign |
n, present:absent |
11:4 |
5:13 |
0.015* |
Obstructive inflammation/atelectasis |
n, present:absent |
4:11 |
0:18 |
0.033* |
Halo sign |
n, present:absent |
1:14 |
7:11 |
0.046* |
Peak phase |
n, venous phase:delayed phase |
3:12 |
15:3 |
< 0.001* |