中国医疗设备2018，Vol.33Issue(5)：63-66,4.DOI:10.3969/j.issn.1674-1633.2018.05.017
双源CT中等螺距扫描模式在主动脉血管造影中的应用研究
Applying Study of Middle Pitch Scan Mode of Aortic Angiography with Dual-Source CT
摘要
Abstract
Objective To evaluate image quality and radiation dose of high, medium and low pitch acquisition program of dual-source CT aortic angiography. Methods This study was a prospective study, all 90 patients underwent aortic angiography with dual-source CT. Each group included 30 consecutive patients, dual energy acquisition technique with pitch 1.0, pitch 2.0 and pitch 3.0 were applied in group A, B and C, respectively. Radiation dose and image quality of the three groups were compared. Results Among A, B and C groups, scan length differences were not statistically significant, acquisition time gradually decreased and the differences were statistically significant. Effective radiation dose was gradually reduced in these three groups, the differences between A and B groups, A and C groups were both statistically significant, while the differences between B and C groups were not statistically significant. All aortic images of the three methods reached the eligibility criteria, image noise of high pitch was higher. Subjective image quality score differences among three groups were all statistically significant. Conclusion The pitch 2.0 is recommended for aortic angiography with dual-source CT.关键词
双源CT/主动脉/辐射剂量/血管造影Key words
dual-source computed tomography/aorta/radiation dose/angiography分类
医药卫生引用本文复制引用
智婷婷,卢铃铨,周星帆,王利伟,殷信道..双源CT中等螺距扫描模式在主动脉血管造影中的应用研究[J].中国医疗设备,2018,33(5):63-66,4.基金项目
南京市医学科技发展项目(YKK17124) （YKK17124）
南京市科技发展计划项目(201715029). （201715029）
