Table 3.
Imaging features on rectal MRI.
| Imaging Features | |||
|---|---|---|---|
| Tumor Localization | Lower | Middle | Upper |
| n (%) | 16 (24.62) | 31 (47.69) | 18 (27.69) |
| Tumor Length (cm) | |||
| median (range) | 4.2 (1.6–10.3) | ||
| Mucin Content | No | Yes | |
| n (%) | 52 (80) | 13 (20) | |
| CRM distance (mm) | |||
| Median (range) | 7 (0–27) | ||
| CRM status | Negative | Positive | NA |
| n (%) | 42 (64.62) | 17 (26.15) | 6 (9.23) |
| Extramural vascular invasion | Absent | Present | |
| n (%) | 51 (78.46) | 14 (21.54) | |
| DWI restriction | No | Yes | NA |
| n (%) | 4 (6.15) | 56 (86.15) | 5 (7.69) |
| Early perfusion on DCE | No | Yes | NA |
| n (%) | 15 (23.08) | 42 (64.62) | 8 (12.3) |
| Metastatic lymph nodes | No | Yes | |
| n (%) | 31 (47.69) | 34 (52.31) | |
CRM, circumferential resection margin; DCE, dynamic contrast-enhances; DWI, diffusion weighted imaging