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COVID-19 / SPECIALTY RESEARCH

RadiologyIn perspective.

The key COVID-19 findings in radiology, distilled into a clear, readable brief. The evidence is here whenever you want to go deeper.

INSIDE THIS MONITOR
43cited sources
4available findings

Study findings updated

AI-assisted evidence summary. For general information. These findings are not individual medical advice or a clinician endorsement.

THE SHORT VERSION

What’s worth knowing.

The key findings, what they mean, and the context that matters.

THE HEADLINE TAKEAWAY83%

Most symptomatic COVID-19 patients had ground-glass opacities on admission CT

Ground-glass opacities appeared on chest CT in 83% of symptomatic COVID-19 patients.

The source is a systematic review and meta-analysis of imaging manifestations at admission. This result concerns CT, not chest ultrasound or radiographs.

See the evidence

of symptomatic COVID-19 patients show ground-glass opacities on chest CT

83%

One-Ji A, Rezoagli E, Peli A, et al. COVID-19 pneumonia manifestations at the admission on chest ultrasound, radiographs, and CT: A systematic review and meta-analysis. Eur J Radiol. 2020;132:109283.

Study-specific findings. Different populations, treatments and follow-up periods can produce different results.

THE RESEARCH, AS IT ARRIVES

Latest studies.

The newest findings added to this collection.
The learning from each, already distilled.

Study summaries are not available in this collection yet. The original evidence remains accessible in each monitor.

Dates show when findings were added here, not when papers were published. Study populations and comparisons differ.

WHEN YOU WANT TO GO DEEPER
See all 4 findingsOriginal results, comparisons and study details.
4 of 4 source groupsFindings stay together with their study.
SOURCE 041 finding

Suh YJ, Hong H, Ohana M, et al. Pulmonary Embolism and Deep Vein Thrombosis in COVID-19: A Systematic Review and Meta-Analysis. Radiology. 2021;298(2):E70-E80.

Pulmonary Embolism

14.7%95% CI: 11.8-17.6%Source [4]
SOURCE 221 finding

Kremer S, Lersy F, de Seze J, et al. Brain MRI Findings in Severe COVID-19: A Retrospective Observational Study. Radiology. 2020;297(2):E242-E251.

Brain MRI Abnormalities

44.4%95% CI: 38.7-50.1% hospitalized with neuro symptomsSource [22]
Browse the 43 original sourcesThe complete bibliography behind this monitor.
  1. [1]

    Salehi S, Abedi A, Balakrishnan S, Gholamrezanezhad A. Coronavirus Disease 2019 (COVID-19): A Systematic Review of Imaging Findings in 919 Patients. AJR Am J Roentgenol. 2020;215(1):87-93.

    Open original source in a new tab
  2. [2]

    One-Ji A, Rezoagli E, Peli A, et al. COVID-19 pneumonia manifestations at the admission on chest ultrasound, radiographs, and CT: A systematic review and meta-analysis. Eur J Radiol. 2020;132:109283.

    Open original source in a new tab
  3. [3]

    Zheng Y, Wang L, Ben S. Meta-analysis of chest CT features of patients with COVID-19 pneumonia. J Med Virol. 2021;93(1):241-249.

    Open original source in a new tab
  4. [4]

    Suh YJ, Hong H, Ohana M, et al. Pulmonary Embolism and Deep Vein Thrombosis in COVID-19: A Systematic Review and Meta-Analysis. Radiology. 2021;298(2):E70-E80.

    Open original source in a new tab
  5. [5]

    Knight DS, Kotecha T, Razvi Y, et al. COVID-19: Myocardial Injury in Survivors. Circulation. 2020;142(11):1120-1122.

    Open original source in a new tab
  6. [6]

    Ntaios G, Michel P, Georgiopoulos G, et al. Characteristics and Outcomes in Patients With COVID-19 and Acute Ischemic Stroke: The Global COVID-19 Stroke Registry. Stroke. 2020;51(9):e254-e258.

    Open original source in a new tab
  7. [7]

    Merkler AE, Parikh NS, Mir S, et al. Risk of Ischemic Stroke in Patients With Coronavirus Disease 2019 (COVID-19) vs Patients With Influenza. JAMA Neurol. 2020;77(11):1366-1372.

    Open original source in a new tab
  8. [8]

    Malas MB, Naazie IN, Elsayed N, et al. Thromboembolism risk of COVID-19 is high and associated with a higher risk of mortality: A systematic review and meta-analysis. EClinicalMedicine. 2020;29:100639.

    Open original source in a new tab
  9. [9]

    Klok FA, Kruip MJHA, van der Meer NJM, et al. Confirmation of the high cumulative incidence of thrombotic complications in critically ill ICU patients with COVID-19: An updated analysis. Thromb Res. 2020;191:148-150.

    Open original source in a new tab
  10. [10]

    Guedj E, Campion JY, Dudouet P, et al. 18F-FDG brain PET hypometabolism in patients with long COVID. Eur J Nucl Med Mol Imaging. 2021;48(9):2823-2833.

    Open original source in a new tab
  11. [11]

    Puntmann VO, Carerj ML, Wieters I, et al. Outcomes of Cardiovascular Magnetic Resonance Imaging in Patients Recently Recovered From Coronavirus Disease 2019 (COVID-19). JAMA Cardiol. 2020;5(11):1265-1273.

    Open original source in a new tab
  12. [12]

    Huang L, Zhao P, Tang D, et al. Cardiac Involvement in Patients Recovered From COVID-2019 Identified Using Magnetic Resonance Imaging. JACC Cardiovasc Imaging. 2020;13(11):2330-2339.

    Open original source in a new tab
  13. [13]

    Rajpal S, Tong MS, Borber J, et al. Cardiovascular Magnetic Resonance Findings in Competitive Athletes Recovering From COVID-19 Infection. JAMA Cardiol. 2021;6(1):116-118.

    Open original source in a new tab
  14. [14]

    Han X, Fan Y, Alwalid O, et al. Six-month Follow-up Chest CT Findings after Severe COVID-19 Pneumonia. Radiology. 2021;299(1):E177-E186.

    Open original source in a new tab
  15. [15]

    Mandal S, Barnett J, Brill SE, et al. Long-COVID: a cross-sectional study of persisting symptoms, biomarker and imaging abnormalities following hospitalisation for COVID-19. Thorax. 2021;76(4):396-398.

    Open original source in a new tab
  16. [16]

    Huang C, Huang L, Wang Y, et al. 6-month consequences of COVID-19 in patients discharged from hospital: a cohort study. Lancet. 2021;397(10270):220-232.

    Open original source in a new tab
  17. [17]

    Wu X, Liu X, Zhou Y, et al. 3-month, 6-month, 9-month, and 12-month respiratory outcomes in patients following COVID-19-related hospitalisation: a prospective study. Lancet Respir Med. 2021;9(7):747-754.

    Open original source in a new tab
  18. [18]

    Al-Aly Z, Bowe B, Xie Y. Outcomes of SARS-CoV-2 Reinfection. Research Square. 2022.

    Open original source in a new tab
  19. [19]

    Ai T, Yang Z, Hou H, et al. Correlation of Chest CT and RT-PCR Testing for Coronavirus Disease 2019 (COVID-19) in China: A Report of 1014 Cases. Radiology. 2020;296(2):E32-E40.

    Open original source in a new tab
  20. [20]

    Francone M, Iafrate F, Masci GM, et al. Chest CT score in COVID-19 patients: correlation with disease severity and short-term prognosis. Eur Radiol. 2020;30(12):6808-6817.

    Open original source in a new tab
  21. [21]

    Yang R, Li X, Liu H, et al. Chest CT Severity Score: An Imaging Tool for Assessing Severe COVID-19. Radiol Cardiothorac Imaging. 2020;2(2):e200047.

    Open original source in a new tab
  22. [22]

    Kremer S, Lersy F, de Seze J, et al. Brain MRI Findings in Severe COVID-19: A Retrospective Observational Study. Radiology. 2020;297(2):E242-E251.

    Open original source in a new tab
  23. [23]

    Helms J, Kremer S, Merdji H, et al. Neurologic Features in Severe SARS-CoV-2 Infection. N Engl J Med. 2020;382(23):2268-2270.

    Open original source in a new tab
  24. [24]

    Yaghi S, Ishida K, Torres J, et al. SARS-CoV-2 and Stroke in a New York Healthcare System. Stroke. 2020;51(7):2002-2011.

    Open original source in a new tab
  25. [25]

    Politi LS, Salsano E, Grimaldi M. Magnetic Resonance Imaging Alteration of the Brain in a Patient With Coronavirus Disease 2019 (COVID-19) and Anosmia. JAMA Neurol. 2020;77(8):1028-1029.

    Open original source in a new tab
  26. [26]

    Laurendon T, Radulesco T, Mugnier J, et al. Bilateral transient olfactory bulb edema during COVID-19-related anosmia. Neurology. 2020;95(5):224-225.

    Open original source in a new tab
  27. [27]

    Hosp JA, Dressing A, Blazhenets G, et al. Cognitive impairment and altered cerebral glucose metabolism in the subacute stage of COVID-19. Brain. 2021;144(4):1263-1276.

    Open original source in a new tab
  28. [28]

    Sollini M, Morbelli S, Ciccarelli M, et al. Long COVID hallmarks on [18F]FDG-PET/CT: a case-control study. Eur J Nucl Med Mol Imaging. 2021;48(10):3187-3197.

    Open original source in a new tab
  29. [29]

    Prokop M, van Everdingen W, van Rees Vellinga T, et al. CO-RADS: A Categorical CT Assessment Scheme for Patients Suspected of Having COVID-19-Definition and Evaluation. Radiology. 2020;296(2):E97-E104.

    Open original source in a new tab
  30. [30]

    Simpson S, Kay FU, Abbara S, et al. Radiological Society of North America Expert Consensus Statement on Reporting Chest CT Findings Related to COVID-19. Radiology: Cardiothoracic Imaging. 2020;2(2):e200152.

    Open original source in a new tab
  31. [31]

    Rubin GD, Ryerson CJ, Haramati LB, et al. The Role of Chest Imaging in Patient Management during the COVID-19 Pandemic: A Multinational Consensus Statement from the Fleischner Society. Radiology. 2020;296(1):172-180.

    Open original source in a new tab
  32. [32]

    ACR Recommendations for the use of Chest Radiography and Computed Tomography (CT) for Suspected COVID-19 Infection. American College of Radiology. Updated 2020.

    Original source link unavailable
  33. [33]

    Kim H, Hong H, Yoon SH. Diagnostic Performance of CT and Reverse Transcriptase-Polymerase Chain Reaction for Coronavirus Disease 2019: A Meta-Analysis. Radiology. 2020;296(3):E145-E155.

    Open original source in a new tab
  34. [34]

    Gholamrezanezhad A, Bao C, Beyke JA, et al. Evolution of CT Manifestations in a Patient Recovered from 2019 Novel Coronavirus (2019-nCoV) Pneumonia in Wuhan, China. Radiology. 2020;295(1):20.

    Open original source in a new tab
  35. [35]

    Shi H, Han X, Jiang N, et al. Radiological findings from 81 patients with COVID-19 pneumonia in Wuhan, China: a descriptive study. Lancet Infect Dis. 2020;20(4):425-434.

    Open original source in a new tab
  36. [36]

    Bao C, Liu X, Zhang H, Li Y, Liu J. Coronavirus Disease 2019 (COVID-19) CT Findings: A Systematic Review and Meta-analysis. J Am Coll Radiol. 2020;17(6):701-709.

    Open original source in a new tab
  37. [37]

    Lu Y, Li X, Geng D, et al. Cerebral Micro-Structural Changes in COVID-19 Patients - An MRI-based 3-month Follow-up Study. EClinicalMedicine. 2020;25:100484.

    Open original source in a new tab
  38. [38]

    Qin C, Liu F, Yen TC, Lan X. 18F-FDG PET/CT findings of COVID-19: a series of four highly suspected cases. Eur J Nucl Med Mol Imaging. 2020;47(5):1281-1286.

    Open original source in a new tab
  39. [39]

    Duan F, Gao Y, Yao J, et al. 18F-FDG PET/CT Finding of COVID-19. J Nucl Med. 2020;61(Suppl 1):1455.

    Original source link unavailable
  40. [40]

    Joy G, Arber M, Gatto M, et al. Prospective Case-Control Study of Cardiovascular Abnormalities 6 Months Following Mild COVID-19 in Healthcare Workers. JACC Cardiovasc Imaging. 2021;14(11):2155-2166.

    Open original source in a new tab
  41. [41]

    Wang S, Zha Y, Li W, et al. A Fully Automatic Deep Learning System for COVID-19 Diagnostic and Prognostic Analysis. Eur Respir J. 2020;56(2):2000775.

    Open original source in a new tab
  42. [42]

    Chiu A, Fischbein N, Wintermark M, et al. COVID-19-induced anosmia associated with olfactory bulb atrophy. Neuroradiology. 2021;63(1):147-148.

    Open original source in a new tab
  43. [43]

    Esposito A, Palmisano A, Toselli M, et al. Cardiac involvement in COVID-19 patients: risk factors, clinical implications, and prognostic impact of cardiac MRI. Eur Heart J Cardiovasc Imaging. 2021;22(7):736-746.

    Original source link unavailable
ABOUT THIS MONITOR

Understanding includes the limits.

This is an AI-assisted evidence summary, not a clinician endorsement. Read each original paper for its complete methods, population and limitations. Different studies can ask different questions and report different kinds of results.

Dates marked “added” describe when a finding entered this monitor, not when the study was published or clinically reviewed. Personal health and treatment decisions belong in a conversation with a qualified clinician.

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