| 不同螺距联合ASIR重建技术在COVID-19胸部低剂量CT扫描中的应用研究 |
| |
| 引用本文： | 仵腾辉,查云飞,杨峰.不同螺距联合ASIR重建技术在COVID-19胸部低剂量CT扫描中的应用研究[J].CT理论与应用研究,2022,31(2):186-194. |
| |
| 作者姓名： | 仵腾辉 查云飞 杨峰 |
| |
| 作者单位： | 1.湖北医药学院附属襄阳市第一人民医院放射科, 湖北 襄阳441000 |
| |
| 摘 要： | 目的:探讨2019冠状病毒病(COVID-19)患者使用大螺距联合自适应统计迭代重建技术行低剂量扫描的可行性,比较辐射剂量及图像质量的差异.方法:收集我院确诊为COVID-19的病例共91例作为低剂量组,同时选取同期于我院行新冠肺炎筛查的91例未确诊为COVID-19的患者作为常规剂量组.低剂量组使用大螺距扫描联合自适...
|
| 关 键 词： | 自适应统计迭代重建技术 新型冠状病毒肺炎 图像质量 辐射剂量 |
| 收稿时间： | 2021-02-25 |
The Study of Application of Different Pitch Combined with ASIR in Low-dose Chest CT Screening on COVID-19 |
| |
| WU Tenghui,ZHA Yunfei,YANG Feng.The Study of Application of Different Pitch Combined with ASIR in Low-dose Chest CT Screening on COVID-19[J].Computerized Tomography Theory and Applications,2022,31(2):186-194. |
| |
| Authors: | WU Tenghui ZHA Yunfei YANG Feng |
| |
| Institution: | 1.Department of Radiology, Xiangyang No.1 People’s Hospital, Hubei University of Medicine, Xiangyang,441000, China2.Department of Radiology, Renmin Hospital of Wuhan University, Wuhan,430060, China |
| |
| Abstract: | Objective: To explore the feasibility of low-dose scanning for COVID-19 patients by using the method of high-pitch combined with ASIR, and compare the diffrence of radiation dose and image quality. Methods: 91 patients diagnosed with COVID-19 in our hospital were collected as the low-dose group while 91 cases of undiagnosed COVID-19 patients who were screened for COVID-19 in our hospital during the same period were selected as the conventional dose group. High-pitch combined with ASIR was performed on the low-dose group while conventional dose group was scanned by common pitch and reconstructed by FBP. In order to compare the differnce of the image quality and radiation dose between the two groups, we recorded the radiation dose and performed subjective and objective evaluation of image quality of the two groups.Results: There was statistical differences in radiation dose between the two groups, and the radiation dose of the low-dose group was significantly lower than that of the conventional dose group (the ED was reduced by about 52%). There was no statistical difference in the image quality scores between the two groups; There was no statistical difference in the objective evaluation of images between the two groups . Conclusion: Low dose scanning with high-pitch combined with ASIR for COVID-19 patients can evidently reduce the radiation dose without significant decrease in image quality. |
| |
| Keywords: | |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《CT理论与应用研究》浏览原始摘要信息 |
| 点击此处可从《CT理论与应用研究》下载免费的PDF全文 |
