Abstract：Objective: To evaluate the application of dual-source Flash Spiral CT in aortography, and compare it’s image quality and radiation dose with traditional scanning mode. Methods: 110 patients suspected or known aortic dissection were divided into two groups. Group A underwent traditional scan mode and Group B underwent Flash Spiral scan mode. Both the image quality and radiation dose of the two groups were compared. Results: There was no significant difference in age and body mass index of the two groups. The average image quality score was 2.1±0.7 in group A and 1.4±0.6 in group B, with significant difference(t＝5.2, P＜0.05). The mean radiation dose of group B was lower than that of group A((2.7±0.6) mSv, (3.9±0.9) mSv; t＝2.1, P＜0.05). Conclusion: Dual-source Flash Spiral CT scanning with low radiation dose and good image quality in demonstrating aortic dissection with high clinical application value.
2013, Vol. 24 
