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Related Experiment Video

Updated: Nov 6, 2025

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
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Radiographers and COVID-19 pneumonia: Diagnostic performance using CO-RADS.

S Vicini1, N Panvini1, D Bellini1

  • 1Department of Radiological Sciences, Oncology and Pathology, "Sapienza" University of Rome, I.C.O.T. Hospital, Via Franco Faggiana, 1668, 04100, Latina, Italy.

Radiography (London, England : 1995)
|May 12, 2021
PubMed
Summary
This summary is machine-generated.

Radiographers demonstrated comparable diagnostic performance to radiologists in identifying COVID-19 pneumonia on chest CT scans using the CO-RADS system. This finding supports a more integrated role for radiographers in managing suspected COVID-19 cases.

Keywords:
COVID-19Computed tomographyDiagnostic accuracyROC CurveSensitivity and specificitySevere acute respiratory syndrome coronavirus 2

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Area of Science:

  • Radiology
  • Infectious Disease Imaging

Background:

  • The management of patients with suspected COVID-19 requires efficient diagnostic pathways.
  • Chest CT is a key imaging modality for diagnosing COVID-19 pneumonia.
  • The role of radiographers in interpreting these scans needs further evaluation.

Purpose of the Study:

  • To evaluate the diagnostic performance of radiographers in detecting COVID-19 pneumonia on chest CT.
  • To compare radiographers' accuracy with that of consultant radiologists using CO-RADS descriptors.

Main Methods:

  • Retrospective analysis of chest CT scans from 714 patients with suspected COVID-19.
  • Independent scoring of CT images by radiologists and radiographers (experienced and less experienced) using the CO-RADS lexicon.
  • Diagnostic accuracy assessed using ROC curves and inter-rater agreement evaluated with Fleiss'κ statistics.

Main Results:

  • Radiographers, both experienced and less experienced, showed diagnostic performance comparable to consultant radiologists.
  • Optimal diagnostic threshold identified as CO-RADS > 3.
  • Highly experienced radiographers achieved a sensitivity of 58.7% and specificity of 81.8%; less experienced radiographers achieved 56.3% sensitivity and 81.5% specificity; radiologists achieved 60.0% sensitivity and 81.7% specificity.

Conclusions:

  • Radiographers can reliably recognize COVID-19 pneumonia on CT scans using the CO-RADS scheme.
  • Their diagnostic performance is comparable to that of expert radiologists.
  • A structured role for radiographers can expedite the management of patients with suspected COVID-19.