Table 3 The aortic CT enhancement values and the aortic image noise of traditional scan mode (Group A) and high-pitch scan mode (Group B)
Group A | Group B | P value | |
|---|---|---|---|
CT enhancement values of aortic arch (HU) | 476.0 ± 93.3 | 448.5 ± 87.4 | 0.96 |
Image noise of aortic arch | 22.6 ± 9.2 | 20.4 ± 5.3 | 0.12 |
CT enhancement values of iliac artery bifurcation (HU) | 447.6 ± 93.2 | 432.6 ± 83.6 | 0.42 |
Image noise of iliac artery bifurcation | 31.8 ± 12.2 | 28.3 ± 7.6 | 0.10 |
SNR | 27.8 ± 8.7 | 25.9 ± 9.3 | 0.25 |