Table 2
Estimated 75th percentile of CTDIvol(mGy) and DLP(mGy.cm) numbers for head, CAP, chest, and abdomen CTs in this work compared to other countries.
| Examinations DRL 75th percentile | Head | CAP | Chest | Abdomen | ||||
|---|---|---|---|---|---|---|---|---|
| CTDIvol (mGy) | DLP (mGy.cm) | CTDIvol (mGy) | DLP (mGy.cm) | CTDIvol (mGy) | DLP (mGy.cm) | CTDIvol (mGy) | DLP (mGy.cm) | |
| This work | 40 | 1445 | 8 | 825 | 11 | 700 | 9 | 788 |
| ICRP 2017 | 60 | 1050 | – | – | 30 | 650 | 35 | 780 |
| French, 2018 | 46 | 850 | 11 | 750 | 10 | 350 | 13 | 650 |
| USA, 2015 | 62 | 1120 | – | – | 17 | 610 | 17 | 860 |
| Japan, 2020 | 77 | 1350 | 16 | 1200 | 13 | 510 | 18 | 880 |
| Ethiopia, 2021 | 43 | 1364 | – | – | 8 | 369 | 11 | 1569 |
| China, 2020 | 50 | 818 | – | – | 8 | 302 | 10 | 442 |
| Sudan, 2018 | 41 | 461 | – | – | 9 | 165 | 8 | 270 |
| UK, 2014 | 55 | 760 | – | – | 10 | 430 | 13 | 460 |
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