Table 5.
Dose report for different scan protocols and groups.
| Parameter | Flash | AS | Helical |
|---|---|---|---|
| Effective tube current (mAs)∗ | |||
| Group BW | 494 ± 81 | 354 ± 63 | 430 ± 99 |
| Group LBW | 511 ± 79 | 357 ± 80 | 454 ± 80 |
| Group CO | 508 ± 74 | 352 ± 62 | 405 ± 113 |
|
| |||
| CTDIvol (mGy)∗ | |||
| Group BW | 2.5 ± 1.4 | 19.8 ± 15.7 | 42.0 ± 34.7 |
| Group LBW | 2.5 ± 1.3 | 17.1 ± 13.1 | 42.7 ± 17.5 |
| Group CO | 2.3 ± 1.0 | 22.2 ± 28.9 | 30.9 ± 22.9 |
|
| |||
| Total DLP (mGy ∗ cm)∗ | |||
| Group BW | 81 ± 31 | 290 ± 198 | 664 ± 471 |
| Group LBW | 78 ± 27 | 273 ± 195 | 730 ± 272 |
| Group CO | 74 ± 25 | 271 ± 245 | 521 ± 385 |
|
| |||
| Effective dose (mSv)∗ | |||
| Group BW | 0.9 ± 0.5 | 5.4 ± 3.7 | 15.4 ± 12.1 |
| Group LBW | 0.8 ± 0.4 | 6.0 ± 4.9 | 11.8 ± 3.1 |
| Group CO | 0.8 ± 0.4 | 5.2 ± 4.5 | 9.9 ± 7.4 |
Note. Values are presented as mean ± standard deviation. Flash = high-pitch protocol; AS = adaptive sequence protocol; Helical = helical protocol. BW = body weight; LBW = lean body weight; CO = cardiac output; CTDIvol = CT dose index; DLP = dose length product. ∗No significant difference was found in all radiation dose parameters between all groups (all p > 0.100).