ArticleRadiology2023
Reduction in Chest CT Severity and Improved Hospital Outcomes in SARS-CoV-2 Omicron Compared with Delta Variant Infection.
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Article in Radiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.
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61citing papers in PubMed, 1 pooled it
8.2field-weighted citation impact, top 2% of its field
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Who cites it
61 citing papers in PubMed, 1 synthesis or guideline pooled it, 84 citations in OpenAlex.
- Differences in chest imaging between Omicron and non-Omicron coronavirus disease 2019 (COVID-19) patients: a systematic review and meta-analysis.BMC infectious diseases · 2025Pooled it
- Evaluation of an Established Semi-Quantitative Chest CT Scoring System for Assessing the Severity of COVID-19 Pneumonia: What Is Its Diagnostic Value Regarding Patient Outcomes?Diagnostics (Basel, Switzerland) · 2026Article
- Long-term chest CT abnormalities up to 4.5 years after COVID-19 hospitalization and their association with dyspnea and fatigue: a prospective cohort study.Respiratory research · 2026Article
- Large language models in emergency and critical care medicine: a comprehensive review of applications, challenges, and future directions.Burns & trauma · 2026Review
- Dual-energy CT based low flow rate, low dose CTPA and lung perfusion in the pulmonary diagnosis of post-COVID-19 syndrome.Frontiers in medicine · 2026Article
- The post-COVID-19 pulmonary sequelae: manifestations, mechanisms and treatment strategies.Journal of thoracic disease · 2025Review
- MRI Assessment of Lung Water Density in Individuals Previously Infected With COVID-19: A Cross-Sectional Study.Journal of magnetic resonance imaging : JMRI · 2025Article
- Vascular Pathogenesis in Acute and Long COVID: Current Insights and Therapeutic Outlook.Seminars in thrombosis and hemostasis · 2025Review
- Chest computed tomography and plain radiographs demonstrate vascular distribution and characteristics in COVID-19 lung disease - a pulmonary vasculopathy.The Ulster medical journal · 2025Article
- Article
- Lung involvement percentage in patients with COVID-19 during the Omicron wave in China: a SHAP-explained machine learning study from a single center.Frontiers in public health · 2025Article
- Comparison of X-ray and CT Images of COVID-19 Caused by the Wild-Type and Alpha-Variant SARS-CoV-2.Cureus · 2024Article
- Tracheal computed tomography radiomics model for prediction of the Omicron variant of severe acute respiratory syndrome coronavirus 2.Radiologie (Heidelberg, Germany) · 2024Article
- Article
- Impact of non-emergency surgical timing on postoperative recovery quality in mild or asymptomatic SARS-CoV-2 infected patients: a grouped cohort study.BMC anesthesiology · 2024Article
- Pulmonary Function, Computed Tomography Lung Abnormalities, and Small Airway Disease after COVID-19: 3-, 6-, and 9-Month Follow-Up.Journal of clinical medicine · 2024Article
- Article
- CT-based Assessment at 6-Month Follow-up of COVID-19 Pneumonia patients in China.Scientific reports · 2024Article
- Severe pneumonia with co-infection of H5N1 and SARS-CoV-2: a case report.BMC infectious diseases · 2024Article
- Chronic Lung Injury after COVID-19 Pneumonia: Clinical, Radiologic, and Histopathologic Perspectives.Radiology · 2024Review
1 more citing papers are in PubMed but not listed here.
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Authors and funding
13 authors at 2 institutions in 1 country.
Maria T Tsakok *From the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.ORCID 0000-0003-4338-115X
Robert A Watson *From the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.
Shyamal J SaujaniFrom the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.
Mark KongFrom the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.
Cheng XieFrom the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.ORCID 0000-0002-5165-9900
Heiko PeschlFrom the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.
Louise WingFrom the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.ORCID 0000-0002-8032-6718
Fiona K MacLeodFrom the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.ORCID 0000-0002-2666-656X
Brian ShineFrom the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.ORCID 0000-0002-1016-8638
Nicholas P TalbotFrom the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.
Rachel E BenamoreFrom the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.ORCID 0000-0001-7186-2677
David W Eyre *From the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.ORCID 0000-0001-5095-6367
Fergus Gleeson *From the Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford OX3 9DU, United Kingdom (M.T.T., R.A.W., S.J.S., M.K., C.X., H.P., L.W., F.K.M., B.S., N.P.T., R.E.B., D.W.E., F.G.); and Weatherall Institute of Molecular Medicine (R.A.W.), Department of Oncology (R.A.W.), Department of Physiology, Anatomy and Genetics (N.P.T.), and Big Data Institute, Nuffield Department of Population Health (D.W.E.), University of Oxford, Oxford, United Kingdom.
MRC Weatherall Institute of Molecular Medicine · GBUniversity of Oxford · GB
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background The SARS-Cov-2 Omicron variant demonstrates rapid spread but reduced disease severity. Studies evaluating lung imaging findings of Omicron infection versus non-Omicron infection remain lacking. Purpose To compare the Omicron variant with the SARS-CoV-2 Delta variant according to their chest CT radiologic pattern, biochemical parameters, clinical severity, and hospital outcomes after adjusting for vaccination status. Materials and Methods This retrospective study included hospitalized adult patients with reverse transcriptase-polymerase chain reaction test results positive for SARS-CoV-2, with CT pulmonary angiography performed within 7 days of admission between December 1, 2021, and January 14, 2022. Multiple readers performed blinded radiologic analyses that included RSNA CT classification, chest CT severity score (CTSS) (range, 0 [least severe] to 25 [most severe]), and CT imaging features, including bronchial wall thickening. Results A total of 106 patients (Delta group,
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COVID-19Hepatitis DAdultHospitalsHumansMaleMiddle AgedRetrospective StudiesSARS-CoV-2Tomography, X-Ray Computed
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