Table 5 Measured HU values in monoenergetic images with Siemens Somatom Drive
Phantom size | Energy level (kV) | Water | Saline | 10 mg/mL | 20 mg/mL | 30 mg/mL | 50 mg/mL | 100 mg/mL |
|---|---|---|---|---|---|---|---|---|
Small | 70 | -0.1 | 11.4 | 286.7 | 566.3 | 835.9 | 1362.2 | 2263.3 |
80 | 0.6 | 10.1 | 212 | 419.9 | 621.4 | 1017.3 | 1795.6 | |
90 | 1.0 | 9.3 | 162.4 | 322.6 | 478.9 | 788.2 | 1483.9 | |
100 | 1.3 | 8.7 | 128.1 | 255.3 | 380.5 | 629.4 | 1268.4 | |
110 | 1.5 | 8.3 | 103.7 | 207.5 | 310.4 | 516.7 | 1115.0 | |
120 | 1.7 | 8.0 | 85.9 | 172.6 | 259.3 | 434.4 | 1003.0 | |
130 | 1.8 | 7.7 | 72.6 | 146.5 | 221.1 | 373 | 919.5 | |
140 | 1.9 | 7.6 | 62.5 | 126.7 | 192 | 326.2 | 856.0 | |
Medium | 70 | -2.5 | 8.0 | 280.6 | 559.2 | 832.1 | 1357.2 | 2324.5 |
80 | -1.9 | 7.7 | 207.5 | 414.9 | 618.6 | 1013 | 1812.7 | |
90 | -1.6 | 7.6 | 158.8 | 318.7 | 476.3 | 783.5 | 1471.5 | |
100 | -1.3 | 7.5 | 125.0 | 252.4 | 378.0 | 624.9 | 1236.1 | |
110 | -1.1 | 7.4 | 101.1 | 205.0 | 308.0 | 512.3 | 1068.2 | |
120 | -1.0 | 7.3 | 83.6 | 170.5 | 257.0 | 430.0 | 945.8 | |
130 | -0.9 | 7.3 | 70.6 | 144.7 | 218.9 | 368.7 | 854.5 | |
140 | -0.8 | 7.3 | 60.7 | 125.1 | 189.9 | 321.9 | 785.0 | |
Large | 70 | 0.6 | 8.8 | 287.8 | 565.2 | 841.7 | 1367.6 | 2350.1 |
80 | 0.9 | 8.2 | 213.4 | 418.8 | 625.0 | 1020.2 | 1823.5 | |
90 | 1.2 | 7.6 | 163.8 | 321.1 | 480.5 | 788.5 | 1472.5 | |
100 | 1.3 | 7.2 | 129.4 | 253.5 | 380.2 | 628.6 | 1230.3 | |
110 | 1.4 | 6.9 | 105.2 | 205.4 | 308.9 | 514.8 | 1057.8 | |
120 | 1.5 | 6.6 | 87.5 | 170.4 | 256.8 | 431.8 | 931.3 | |
130 | 1.6 | 6.5 | 74.3 | 144.3 | 218.0 | 369.8 | 836.8 | |
140 | 1.6 | 6.3 | 64.2 | 124.4 | 188.5 | 322.6 | 765.1 |