03 May 2023 : Clinical Research
A Feasibility Study to Evaluate Replacing Conventional Computed Tomography at 120 KVP with Low Radiation Dose and Low Iodine Intake Based on Body Mass Index-Adapted Abdominal Computed Tomography Angiography in 291 Patients
Xin Fang1E, Yijun Liu1A*, Zijing Zhang1B, Wei Wei1B, Xu Wang1F, Beibei Li
1F, Xiaoyu Tong 1C
DOI: 10.12659/MSM.939228
Med Sci Monit 2023; 29:e939228
Table 6 Comparison of radiation dose and contrast agent between 2 groups (χ̄±s).
| Group | n | CTDIvol (mGy) | DLP (mGy·cm) | ED (mSv) | Contrast agent (g) |
|---|---|---|---|---|---|
| A1 | 57 | 2.18±0.20 | 110.58±11.89 | 1.65±0.17 | 16.00±1.79 |
| B1 | 40 | 7.46±0.95 | 376.22±60.17 | 5.64±0.90 | 26.63±3.13 |
| value | −34.286 | −27.542 | −27.542 | −19.349 | |
| value | <0.001 | <0.001 | <0.001 | <0.001 | |
| A2 | 49 | 3.68±0.24 | 193.06±16.96 | 2.89±0.25 | 18.85±1.95 |
| B2 | 53 | 8.49±1.09 | 446.12±68.78 | 6.69±1.03 | 30.78±2.63 |
| value | −31.105 | −25.943 | −25.943 | −26.048 | |
| value | <0.001 | <0.001 | <0.001 | <0.001 | |
| A3 | 48 | 6.20±0.74 | 334.12±44.47 | 5.01±0.66 | 21.61±1.60 |
| B3 | 44 | 9.23±1.54 | 490.45±85.05 | 7.35±1.27 | 33.30±1.65 |
| value/ value | −11.804b | −10.902b | −19.902b | −8.32c | |
| value | <0.001 | <0.001 | <0.001 | <0.001 | |
| CTDIvol – the volume CT dose index; DLP – dose length product; ED – effective dose; b χ value; c value. | |||||