Table 1 The technical parameters of the computed tomography colonography for location of tumor and tumor, node, and metastasis (TNM) stage detection of colon cancer
Position | Part of body | Contrast agent | Collimation | kV | mAs | Thickness of slice (mm) | Spacing between slices (mm) | Delay (s) |
|---|---|---|---|---|---|---|---|---|
Prone | Abdomen and pelvis | No | 64 × 0.625 | 120 | 30 | 2 | 1 | – |
Supine | Thorax | Yes | 64 × 0.625 | 120 | Automatic modulation 120 | 3 | 1.5 | 35 |
Supine | Abdomen and pelvis | Yes | 64 × 0.625 | 120 | Automatic modulation 180 | 2 | 1 | 70 |