Table 2.
Preoperative imaging characteristics of patients with pancreatic cystic neoplasms
| Characteristic |
Training cohort
|
Validation cohort
|
P
value
|
|
n
= 187 (64.5%)
|
n
= 103 (35.5%)
|
||
| Tumor involve the head of pancreas | 0.239 | ||
| Yes | 65 (34.8) | 43 (41.7) | |
| No | 122 (65.2) | 60 (58.3) | |
| Bile duct dilation | 0.106 | ||
| No | 174 (93.0) | 90 (87.4) | |
| Yes | 13 (7.0) | 13 (12.6) | |
| Tumor size in mm | 0.254 | ||
| < 40 | 158 (84.5) | 92 (89.3) | |
| ≥ 40 | 29 (15.5) | 11 (10.7) | |
| Intratumoral septum | 0.264 | ||
| No | 76 (40.6) | 35 (34.0) | |
| Yes | 111 (59.4) | 68 (66.0) | |
| Cyst wall enhancement | 0.244 | ||
| No | 118 (63.1) | 72 (69.9) | |
| Yes | 69 (36.9) | 31 (30.1) | |
| Cyst wall thickening | 0.709 | ||
| No | 178 (95.2) | 97 (94.2) | |
| Yes | 9 (4.8) | 6 (5.8) | |
| Enhanced mural nodules | 0.126 | ||
| No | 148 (79.1) | 89 (86.4) | |
| Yes | 39 (20.9) | 14 (13.6) | |
| Intracapsular calcification | 0.117 | ||
| No | 162 (86.6) | 82 (79.6) | |
| Yes | 25 (13.4) | 21 (20.4) | |
| Main pancreatic duct dilatation | 0.419 | ||
| No | 122 (65.2) | 72 (69.9) | |
| Yes | 65 (34.8) | 31 (30.1) |