Table 3.
Computed tomography dose index (CTDIvol), dose length product (DLP), and effective dose of all patients examined with the photon counting CT (PCCT) and with the standard CT (S40). Mean ± SD.
| CTDIvol (mGy) |
DLP (mGy*cm) |
Eff. Dose (mSv) |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| PCCT | S40 | p | PCCT | S40 | p | PCCT | S40 | p | |
| Total | 3.8 ± 1.2 | 5.2 ± 1.5 | <0.001 | 158.2 ± 58.0 | 232.5 ± 67.6 | <0.001 | 2.4 ± 1.0 | 3.4 ± 1.0 | <0.001 |
|
Total,
BMI < 30 |
3.4 ± 0.8 | 4.5 ± 1.1 | <0.001 | 138.3 ± 33.7 | 203.9 ± 62.5 | <0.001 | 2.1 ± 0.6 | 3.1 ± 1.0 | <0.001 |
| Male | 3.5 ± 0.7 | 5.1 ± 1.3 | <0.001 | 144.7 ± 37.8 | 231.2 ± 55.8 | <0.001 | 2.0 ± 0.5 | 3.3 ± 0.8 | <0.001 |
| Female | 4.1 ± 1.5 | 5.3 ± 1.8 | 0.080 | 170.8 ± 71.0 | 235.0 ± 89.0 | 0.030 | 2.8 ± 1.2 | 3.8 ± 1.4 | 0.034 |