Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran; Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran.
J Med Imaging Radiat Sci. 2022 Mar;53(1):107-112. doi: 10.1016/j.jmir.2021.10.009. Epub 2021 Nov 9.
Chest CT provides valuable information regarding coronavirus disease 2019 (COVID-19) during the treatment process. The present study aimed to assess the distribution of chest CT findings in outpatient (OPD) and hospitalized corona patients.
This was a retrospective study. Archived corona patient's data on the picture archiving and communication system (PACS) was assessed in terms of demographic data and patients' lungs' radiologic features. The OPD and hospitalized patients referred to University hospitals from February 20 to the study's date were evaluated. Data were analyzed using independent chi-square and t-test.
Five hundred and fifty nine patients, including 187 OPD and 372 hospitalized patients, were analyzed. The frequency of normal chest CT, typical, and possible corona features was 37.4%, 40.8%, and 14.3%. The normal chest CT rate was significantly higher in outpatient versus hospitalized patients (P<0.001). Consolidation and/or ground-glass opacity were seen in 61% of patients, considerably higher in hospitalized patients (P<0.001). 2% and 15% OPD and hospitalized patients had more than 25% lung involvement, respectively. The frequency of other signs such as Crazy Paving, atoll sign, subpleural band/distortion also was significantly higher in hospitalized patients (P<0.001).
Most OPD patients had less than 5% lung involvement or normal chest CT. The typical features of lung involvement in COVID-19 were significantly higher in hospitalized patients.
胸部 CT 在新冠病毒 2019（COVID-19）治疗过程中提供了有价值的信息。本研究旨在评估门诊（OPD）和住院新冠患者的胸部 CT 表现分布。
这是一项回顾性研究。对 PACS 中存档的新冠患者数据进行评估，包括人口统计学数据和患者肺部的影像学特征。评估了 2 月 20 日至研究日期期间，来自大学医院的 OPD 和住院患者。使用独立的卡方检验和 t 检验分析数据。
共分析了 559 例患者，包括 187 例 OPD 和 372 例住院患者。正常胸部 CT、典型和可能的新冠特征的发生率分别为 37.4%、40.8%和 14.3%。门诊患者的正常胸部 CT 率显著高于住院患者（P<0.001）。61%的患者出现了肺部实变和/或磨玻璃影，住院患者明显更高（P<0.001）。2%和 15%的 OPD 和住院患者分别有超过 25%的肺部受累。其他征象如 Crazy Paving、环状征、胸膜下带/扭曲的发生率在住院患者中也显著更高（P<0.001）。
大多数 OPD 患者的肺部受累小于 5%或胸部 CT 正常。COVID-19 肺部受累的典型特征在住院患者中明显更高。
