24 June 2021 : Clinical Research
An Individualized Contrast-Enhanced Liver Computed Tomography Imaging Protocol Based on Body Mass Index in 126 Patients Seen for Liver Cirrhosis
Jian Jiang1ABCEG, Maowei Zhang1BD, Yuan Ji1BCDF, Chunfeng Li1CD, Xin Fang1BF, Shuyuan Zhang1B, Wei Wang2CF, Lijun Wang1EF, Ailian Liu1ACEF*DOI: 10.12659/MSM.932109
Med Sci Monit 2021; 27:e932109
Table 1 CT acquisition, contrast injection protocols, and reconstruction parameters.
| Parameter | Group A (80 kV) | Group B (100 kV) | Group C (120 kV) |
|---|---|---|---|
| BMI (kg/m) | ≤24 | 24.1–28 | ≥28.1 |
| CT scanning | |||
| Tube voltage (kV) | 80 | 100 | 120 |
| Tube current (mA) | Auto | Auto | Auto |
| FOV (mm) | 36 | 36 | 36 |
| Gantry rotation time (sec) | 0.8 | 0.8 | 0.8 |
| Helical pitch | 0.984: 1 | 0.984: 1 | 0.984: 1 |
| Reconstruction | |||
| Reconstructed section thickness (mm) | 5.00 | 5.00 | 5.00 |
| Reconstructed section increment (mm) | 5.00 | 5.00 | 5.00 |
| Reconstruction algorithm | 40% ASIR | 40% ASIR | 40% ASIR |
| Reconstruction kernel | Soft tissue | Soft tissue | Soft tissue |
| Contrast Injection | |||
| Contrast medium | Ultravist-300 | Ultravist-300 | Ultravist-300 |
| Iodine amount (mg I/kg) | 352 | 440 | 550 |
| Saline (ml) | 30 | 30 | 30 |
| Injection duration (sec) | 25 | 30 | 30 |
| Bolus speed (ml/sec) | |||
| BMI – body mass index; ASIR – adaptive statistical iterative reconstruction; – body weight; ASIR – adaptive statistical iterative reconstruction; FOV – field of view. | |||