Objective: The objective of this systematic review was to evaluate key imaging manifestations of COVID-19 on abdominal imaging by utilizing a comprehensive review of the published literature. Method: A systematic literature search from PubMed, Google Scholar, and Scopus was performed for studies mentioning abdominal imaging findings in COVID-19 patients. Studies published from inception to 15 March 2021 were included. Results: A total of 116 studies comprising 1,198 patients were included. Abdominal pain was the most common indication for abdominal imaging in 50.2% of the patients. No abnormality was seen in 48.1% of abdominopelvic computed tomography scans. Segmental bowel wall thickening (14.7%) was the most common imaging abnormality, followed by bowel ischemia (7.1%), solid organ infarction (6.7%), vessel thrombosis (6.7%), and fluid-filled colon (6.2%). Other relevant findings were dilated air-filled bowel, pancreatitis, pneumatosis/portal venous gas, bowel perforation, and appendicitis. Other than abdominal findings, COVID-19-related basal lung changes were incidentally detected in many studies. Moreover, the presence of bowel imaging findings was positively correlated with the clinical severity of COVID-19 infection. Conclusion: This review describes the abdominal imaging findings in COVID-19 patients. This is pertinent for the early diagnosis of COVID-19 in patients presenting solely with abdominal symptoms as well as in identifying abdominal complications in a known case of COVID-19.
Visc Med

中文翻译：

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COVID-19 患者腹部影像学检查结果的系统评价

目的：本系统评价的目的是通过对已发表文献的全面回顾，评估 COVID-19 在腹部影像学上的关键影像学表现。方法：对 PubMed、Google Scholar 和 Scopus 进行系统文献检索，以寻找提及 COVID-19 患者腹部影像学检查结果的研究。包括从成立到 2021 年 3 月 15 日发表的研究。结果：共纳入 116 项研究，包括 1,198 名患者。在 50.2% 的患者中，腹痛是腹部成像最常见的指征。48.1% 的腹盆腔计算机断层扫描未见异常。节段性肠壁增厚（14.7%）是最常见的影像学异常，其次是肠缺血（7.1%）、实体器官梗塞（6.7%）、血管血栓形成（6.7%）和充满液体的结肠（6.2%）。其他相关发现包括扩张的充气肠、胰腺炎、积气/门静脉积气、肠穿孔和阑尾炎。除了腹部发现外，在许多研究中偶然发现了与 COVID-19 相关的基础肺变化。此外，肠道影像学检查结果的存在与 COVID-19 感染的临床严重程度呈正相关。结论：本综述描述了 COVID-19 患者的腹部影像学检查结果。这与在仅出现腹部症状的患者中早期诊断 COVID-19 以及在已知的 COVID-19 病例中识别腹部并发症有关。
粘性医学