Table 1:
Scan Parameters and Radiation Dose
N=200 | Standard Dose 1 | Standard Dose 2 | Reduced Dose 1 | Reduced Dose 2 |
---|---|---|---|---|
Current ± SD, mA | 389.8 ± 202.2 | 390.6 ± 203.3 | 120.5 ± 82.1 | 120.5 ± 85.2 |
Z-Coverage ± SD, mm | 117 ± 7 | 117 ± 7 | 117 ± 7 | 117 ± 7 |
Scans at 120mm Z-coverage, n (%) | 168 (84%) | 168 (84%) | 168 (84%) | 168 (84%) |
DLP, mGy * cm Median (5th, 95th) | 26.3 (16.8, 84.1) | 26.3 (16.8, 84.1) | 26.4 (17.1, 38.0) | 26.4 (17.1, 38.0) |
Effective Dose, mSv Median (5th, 95th) | 1.4 (0.46, 3.2) | 1.4 (0.46, 3.2) | 0.37 (0.15, 1.2) | 0.37 (0.15, 1.2) |
Heart Rate ± SD, beats per minute | 58 ± 8 | 58 ± 8 | 58 ± 8 | 58 ± 8 |
Abbreviations: mA = milliampere; mm = millimeters; DLP = Dose Length Product; mSv = millisievert; SD = Standard Deviation