Table 1.
Patient characteristics and acquisition parameters of the collected cohort
| Training | Test | |
|---|---|---|
| Gender | M(24), F (16) | M (5), F (5) |
| Age (years) | 62.6 ± 9.5 | 65.6 ± 11.4 |
| Contrast Agent | ||
| i.v. | Venoues Phase | |
| oral | Yes (28), No (12) | Yes (9), No (1) |
| Convolution Kernel | I30f (24) I31f (16) | I30f (8), I31f (2) |
| CT Model | ||
| Siemens SIOMATOM Definition | ||
| AS | 6 | 2 |
| AS+ | 2 | 1 |
| Edge | 31 | 1 |
| Flash | 1 | 1 |
| CTDI Phanyom Type | IEC Body Dosimentry Phantom | |
| CTDI Volume (mGy) | 7.27 ± 3.0 | 8.9 ± 3.5 |
| Data Collection Diameter (mm) | 500 | |
| Exposure (mAs) | 167.2 ± 61.0 | 200.1 ± 65.1 |
| Exposure Modulation Type | XYZ_EC | |
| Exposure Time (ms) | 500 | |
| Reconstruction Diameter (mm) | 389.0 ± 33.1 | 402.7 ± 24.0 |
| Revolution Time (ms) | 806.2 ± 88.5 | 831.8 ± 1.4 |
| Single Collimation Width (mm) | 0.6 (38), 1.2 (2) | 0.6 (10) |
| Slice Thickness (mm) | 5.0 | |
| Spiral Pitch Factor | 0.6 (37), 1.2 (3) | 0.6 (10) |
| Total Collimation Width (mm) | 19.2 (6,) 38.4 (34) | 19.2 (2), 38.4 (8) |
| Tube Current (mA) | 211.4 ± 95.0 | 240.5 ± 78.0 |
| Tube Voltage (kV) | 100 (36), 120 (3), 140 (1) | 100 (9), 120 (1) |