刘利

摘要:目的:分析低管电压CT扫描在新型冠状病毒肺炎(新冠肺炎)复查中的应用价值。方法:抽取我院2020年1月-12月收治的58例新冠肺炎患者的首次检查、复查资料,进行回顾性分析,首次检查、复查管电压分别为100kV、70kV,以双盲法评价复查时肺窗、纵膈窗图像质量,辐射剂量相关指标。结果:与首次检查比较,复查时图像质量评分显著降低(P<0.05);但肺窗评分大于3分,高于纵膈窗(<3分),可满足诊断需求。与首次检查比较,复查辐射剂量明显降低(P<0.05)。结论:低管电压CT扫描在新冠肺炎复查中应用,可满足诊断需求。
关键词:低管电压CT;新冠肺炎;辐射剂量
中图分类号:R812文献标识码:BDOI:10?郾3969/j.issn.1001-0270.2021.02.13
The Application Value of Low Tube Voltage CT Scan in the Reexamination of Patients with Novel Coronavirus Pneumonia
LIU Li
(Department of Imaging, Suzhou Ninth People's Hospital, Jiangsu 215200, China)
Abstract: Objective: The value of low tube voltage CT SCAN in the reexamination of COVID-19 pneumonia.Method:Data of 58 patients with new coronary pneumonia (January 20120-december 2020) were collected and analyzed retrospectively. The voltage of the first and second checking tube were 100kV and 70kV respectively. The image quality of lung window and mediastinum window was evaluated by double-blind method, radiation Dose Related Index. Results: compared with the first examination, the image quality score decreased significantly (P & Lt; 0.05) , but the pulmonary window score was more than 3 and higher than the mediastinal window(& Lt; 3) , which could meet the needs of diagnosis. Compared with the first examination, the effective dose, the product of dose length and the volume dose index of CT were significantly decreased (P & Lt; 0.05) .Conclusion:The application of low tube voltage CT SCAN in the re-examination of new coronary pneumonia can meet the needs of diagnosis.
Key words: Low Tube Voltage CT; new coronary pneumonia; radiation dose
新型冠狀病毒肺炎(新冠肺炎)是一种急性呼吸道传染病,由新型冠状病毒感染所引起,主要以肺部炎症性病变为主。此病起病较急、传染性强、致死率高,若未正确筛查、及时隔离,则对患者及其家属的身体健康与生命安全造成极大威胁。采用有效的诊断手段对于改善预后、控制病情蔓延意义重大。核酸检测为诊断此病的金标准,但核酸检测检查结果时间相对较长,影响筛查与诊断速度。有学者指出,CT检查的影像学表现对于新冠肺炎患者的确诊,具有不可替代的作用;但在CT检查过程中,大多数疑似患者需多次重复性检查,其检查的辐射剂量会显著增高,对患者身体健康造成不良影响。因此,保证检查图像质量的同时减少辐射剂量,可有效减少对患者的辐射危害[1]。本文通过回顾性分析我院2020年1月-12月期间收治的58例患者首次检查、复查的临床资料,进一步对比分析低管电压、正常电压CT扫描在患者复查中的应用效果。具体报告如下。
1 一般资料与方法……p>