Department of Radiology and Diagnostic Imaging, University of Alberta, 2B2.41 WMC, 8440-112 Street NW, Edmonton, AB, T6G 2B7, Canada.
Abdom Radiol (NY). 2021 Mar;46(3):1249-1255. doi: 10.1007/s00261-020-02739-5. Epub 2020 Sep 14.
This scoping review evaluated the currently available data related to abdominal imaging in the SARS-CoV-2 infection.
A systematic review of MEDLINE, EMBASE, SCOPUS, and Web of Science was performed from inception to July 15, 2020 using PRISMA-ScR guidelines. The review included case reports and series discussing radiologic manifestations of SARS-CoV-2 infection in abdominal imaging studies. Studies published from inception to March 31, 2020, were independently screened and reviewed by one author, and another author reviewed studies published after March 31 to July 15, 2020. Study screening and full-text review for publications before March 31, 2020, was performed by one author, and another author for publications after March 31 to July 15, 2020.
Thirty-six studies were included in qualitative synthesis. The prevalence of gastrointestinal symptoms is roughly 18% and includes loss of appetite, nausea, vomiting, diarrhea, and abdominal pain. Sixteen percent of COVID-19 cases may only present with gastrointestinal symptoms. Many patients presenting this way demonstrate evidence of COVID-19 incidentally through abdominal CT imaging at the lung bases. Studies published to date have also reported abdominal imaging findings including small and large bowel wall thickening, fluid-filled colon, pneumatosis intestinalis, pneumoperitoneum, intussusception, and ascites.
Gastrointestinal manifestations and imaging manifestations of SARS-CoV-2 infection are increasingly reported and warrant specific attention during abdominal imaging.
本范围综述评估了目前与 SARS-CoV-2 感染相关的腹部影像学数据。
使用 PRISMA-ScR 指南，对 MEDLINE、EMBASE、SCOPUS 和 Web of Science 进行了系统综述，检索时间为从建库至 2020 年 7 月 15 日。综述纳入了讨论 SARS-CoV-2 感染腹部影像学表现的病例报告和病例系列。由一位作者独立筛选和回顾 2020 年 3 月 31 日前发表的研究，另一位作者回顾 2020 年 3 月 31 日后至 7 月 15 日发表的研究。对 2020 年 3 月 31 日前发表的出版物进行研究筛选和全文审查由一位作者进行，对 2020 年 3 月 31 日后至 7 月 15 日发表的出版物进行研究筛选和全文审查由另一位作者进行。
定性综合纳入 36 项研究。胃肠道症状的患病率约为 18%，包括食欲不振、恶心、呕吐、腹泻和腹痛。16%的 COVID-19 病例可能仅表现为胃肠道症状。许多表现为这种症状的患者通过肺部基底的腹部 CT 成像偶然发现 COVID-19 的证据。迄今为止发表的研究还报告了腹部影像学表现，包括小肠和大肠壁增厚、充满液体的结肠、肠壁积气、气腹、肠套叠和腹水。
SARS-CoV-2 感染的胃肠道表现和影像学表现越来越多地被报道，在进行腹部影像学检查时需要特别注意。
