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 Jiang ABCEG , Maowei Zhang BD , Yuan Ji BCDF , Chunfeng Li CD , Xin Fang BF , Shuyuan Zhang B , Wei Wang CF , Lijun Wang EF , Ailian Liu ACEF*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. | |||