From: Repeatability of small lung nodule measurement in low-dose lung screening: a phantom study
| Diameter | Diameter | ||||||
|---|---|---|---|---|---|---|---|
| kV | mAs | 5 mm | sd | P | 5 mm | sd | P |
| GGN | S | ||||||
| 70 | 20 | 5.27 | 0.38 | .061 | 5.07 | 0.06 | 1.000 |
| 70 | 30 | 4.67 | 0.67 | .294 | 5.07 | 0.06 | 1.000 |
| 70 | 40 | 4.93 | 0.21 | .143 | 5.07 | 0.06 | 1.000 |
| 70 | 50 | 4.80 | 0.44 | .344 | 5.07 | 0.06 | .471 |
| 70 | 60 | 5.57 | 0.31 | .916 | 5.17 | 0.12 | 1.000 |
| 70 | 70 | 5.23 | 0.61 | .294 | 5.07 | 0.06 | 1.000 |
| 70 | 80 | 4.93 | 0.21 | .294 | 5.07 | 0.06 | 1.000 |
| 70 | 90 | 4.93 | 0.21 | .143 | 5.07 | 0.06 | 1.000 |
| 70 | 100 | 4.80 | 0.44 | .095 | 5.07 | 0.06 | .151 |
| 80 | 20 | 4.73 | 0.35 | .143 | 4.87 | 0.40 | 1.000 |
| 80 | 30 | 4.80 | 0.44 | .294 | 5.07 | 0.06 | 1.000 |
| 80 | 40 | 4.93 | 0.21 | .294 | 5.07 | 0.06 | 1.000 |
| 80 | 50 | 4.93 | 0.21 | .294 | 5.07 | 0.06 | 1.000 |
| 80 | 60 | 4.93 | 0.21 | .673 | 5.07 | 0.06 | 1.000 |
| 80 | 70 | 5.13 | 0.67 | .294 | 5.07 | 0.06 | 1.000 |
| 80 | 80 | 4.93 | 0.21 | .294 | 5.07 | 0.06 | 1.000 |
| 80 | 90 | 4.93 | 0.21 | .294 | 5.07 | 0.06 | 1.000 |
| 80 | 100 | 4.93 | 0.21 | .143 | 5.07 | 0.06 | 1.000 |
| 100 | 20 | 4.80 | 0.44 | .294 | 5.07 | 0.06 | 1.000 |
| 100 | 30 | 4.93 | 0.21 | .143 | 5.07 | 0.06 | 1.000 |
| 100 | 40 | 4.80 | 0.44 | .117 | 5.07 | 0.06 | 1.000 |
| 100 | 50 | 5.77 | 0.76 | .248 | 5.07 | 0.06 | 1.000 |
| 100 | 60 | 5.63 | 0.51 | .143 | 5.07 | 0.06 | 1.000 |
| 100 | 70 | 4.80 | 0.44 | .294 | 5.07 | 0.06 | .151 |
| 100 | 80 | 4.93 | 0.21 | .294 | 4.87 | 0.40 | 1.000 |
| 100 | 90 | 4.93 | 0.21 | .294 | 5.07 | 0.06 | 1.000 |
| 100 | 100 | 4.93 | 0.21 | .173 | 5.07 | 0.06 | 1.000 |
| 120 | 20 | 5.70 | 0.87 | .294 | 5.07 | 0.06 | 1.000 |
| 120 | 30 | 4.93 | 0.21 | .095 | 5.07 | 0.06 | .151 |
| 120 | 40 | 4.73 | 0.35 | .248 | 4.87 | 0.40 | .000 |
| 120 | 50 | 4.90 | 0.20 | .344 | 5.83 | 0.64 | 1.000 |
| 120 | 60 | 4.97 | 0.15 | .143 | 5.07 | 0.06 | .630 |
| 120 | 70 | 4.80 | 0.26 | .294 | 5.00 | 0.10 | 1.000 |
| 120 | 80 | 4.93 | 0.21 | .294 | 5.07 | 0.06 | 1.000 |
| 120 | 90 | 4.93 | 0.21 | .344 | 5.07 | 0.06 | .471 |
| 120 | 100 | 4.97 | 0.23 | – | 5.17 | 0.12 | – |