Table 2.
Magnetic resonance imaging parameters.
| Parameter | Liver Segmentation Cohort | Tumor Segmentation Cohort |
|---|---|---|
| n | n = 17 | n = 14 |
| Manufacturer, n (%) | ||
| Siemens | 16 (94.1) | 14 (100.0) |
| Philips Healthcare | 1 (5.9) | 0 |
| Model Name, n (%) | ||
| Aera | 6 (35.3) | 6 (42.9) |
| Avanto | 6 (35.3) | 5 (35.7) |
| Sonata | 1 (5.9) | 1 (7.1) |
| Symphony | 2 (11.8) | 2 (14.3) |
| Espree | 1 (5.9) | 0 |
| Ingenia | 1 (5.9) | 0 |
| Magnetic Field Strength, n (%) | ||
| 1.5 T | 16 (94.1) | 14 (100.0) |
| 3.0 T | 1 (5.9) | 0 |
| Contrast Agent, n (%) | ||
| Gadovist | 4 (23.5) | 4 (28.6) |
| Magnevist | 3 (17.6) | 2 (14.3) |
| Multihance | 5 (29.4) | 4 (28.6) |
| Omniscan | 1 (5.9) | 1 (7.1) |
| not avaliable | 4 (23.5) | 3 (21.4) |
| Flip Angle, mean (SD) | 65.4 (59.1) | 77.3 (58.7) |
| Percent Phase Field of View, mean (SD) | 88.3 (24.5) | 88.4 (26.8) |
| Echo Time, mean (SD) | 26.4 (37.7) | 31.7 (39.7) |
| Repetition Time, mean (SD) | 365.8 (556.0) | 443.4 (586.3) |
| Imaging Frequency, mean (SD) | 67.4 (15.5) | 63.7 (0.0) |
| Pixel Bandwidth (Hz), mean (SD) | 536.9 (346.1) | 487.3 (201.1) |
| Spacing Between Slices, mean (SD) | 9.5 (3.9) | 10.3 (3.2) |