Kashyape Rohan, Jain Richa
Medall Spark Diagnostics, Nashik, Maharashtra, India.
Aster CMI Hospital New Airport Road, NH-7, Outer Ring Rd, Sahakar Nagar, Bengaluru, Karnataka, India.
Indian J Radiol Imaging. 2021 Jan;31(Suppl 1):S178-S181. doi: 10.4103/ijri.IJRI_944_20. Epub 2021 Jan 23.
A total of 1,499 patients who underwent High Resolution Computed tomography (HRCT) chest in the duration of 2 months for suspected COVID-19 pneumonia were included. Subjects included were those who had tested positive for the virus on RT-PCR, those with symptoms suspicious for COVID-19 infection awaiting results for the RT-PCR test or with negative result but strong clinical suspicion as well as those with exposure to proven patients based on contact tracing. Thus, both symptomatic as well as asymptomatic patients were included. The positive predictive value of HRCT was 85%, sensitivity was 73% for all patients. Overall, accuracy was 68%. There was no significant difference in these values for symptomatic and asymptomatic individuals. These results were also independent of the time of scan from the onset of symptoms or contact. Thus, we propose that HRCT is an excellent adjunct for initial diagnosis of COVID-19 pneumonia in both symptomatic and asymptomatic individuals in addition to the role of prognostic indicator for COVID-19 pneumonia.
共有1499例患者因疑似新型冠状病毒肺炎在2个月内接受了胸部高分辨率计算机断层扫描（HRCT）。纳入的受试者包括那些逆转录聚合酶链反应（RT-PCR）检测病毒呈阳性的患者、有疑似新型冠状病毒感染症状等待RT-PCR检测结果的患者或检测结果为阴性但临床高度怀疑的患者，以及根据接触者追踪确定与确诊患者有接触的患者。因此，有症状和无症状的患者均被纳入。HRCT的阳性预测值为85%，所有患者的敏感性为73%。总体而言，准确率为68%。有症状和无症状个体的这些数值没有显著差异。这些结果也与从症状出现或接触开始的扫描时间无关。因此，我们认为HRCT除了作为新型冠状病毒肺炎的预后指标外，对于有症状和无症状个体的新型冠状病毒肺炎初始诊断也是一种极好的辅助手段。
