Table 7.
DRL values in terms of CTDIvol (mGy) and the DLP (mGy·cm) estimated in the present study compared with data reported in studies from Malaysia, Morocco, China, US, Japan, and Saudi Arabia (KSA).
| Age Group (Year) | <1 | 1–5 | 6–10 | 11–15 | ||||
|---|---|---|---|---|---|---|---|---|
| Quantity | CTDIvol | DLP | CTDIvol | DLP | CTDIvol | DLP | CTDIvol | DLP |
| Examination | Head | |||||||
| Present study | 13 | 187 | 16 | 276 | 19 | 332 | 21 | 391 |
| Japan [21] | 30 | 480 | 40 | 660 | 55 | 850 | 60 | 1000 |
| Malaysia [29] | 23 | 250 | 29 | 449 | 32 | 459 | 69 | 811 |
| Morocco [30] | 23 | 380 | 25 | 454 | 26 | 498 | 27 | 523 |
| China [31] | 17 | 260 | 24 | 340 | 27 | 434 | 34 | 434 |
| Examination | Chest | |||||||
| Present study | 0.4 | 7 | 1 | 22 | 1.4 | 35 | 3 | 86 |
| US [32] | 1.6 | 31 | 2.4 | 58 | 2.9 | 95 | 7.2 | 272 |
| Japan [21] | 3 | 70 | 4 | 95 | 6.5 | 175 | 6.5 | 30 |
| Malaysia [29] | 3.7 | 47 | 4.2 | 67 | 6.2 | 126 | 6.2 | 156 |
| China [31] | 1.5 | 29 | 1.6 | 35 | 2.2 | 60 | 4.6 | 153 |
| Examination | AP | |||||||
| Present study | 0.9 | 19 | 1.6 | 58 | 1.9 | 74 | 4.1 | 191 |
| US [32] | 2.4 | 60 | 2.9 | 100 | 4.6 | 170 | 7.9 | 358 |
| Japan [21] | 5 | 110 | 6 | 190 | 7.5 | 265 | 9 | 450 |
| KSA [33] | - | - | 1.5 | 29 | 2.4 | 66 | 5.7 | 74 |
| Examination | CAP | |||||||
| Present study | 0.4 | 10 | 1.6 | 63 | 2 | 121 | 3 | 165 |
| US [32] | 2.7 | 89 | 3 | 109 | 4.3 | 204 | 9.1 | 437 |
| Malaysia [29] | 3 | 98 | 4.6 | 150 | 7.1 | 293 | 11.7 | 645 |