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Implementation of the Radiological Society of North America Expert Consensus Guidelines on Reporting Chest CT Findings Related to COVID-19: A Multireader Performance Study.
Som, Avik; Lang, Min; Yeung, Tristan; Carey, Denston; Garrana, Sherief; Mendoza, Dexter P; Flores, Efren J; Li, Matthew D; Sharma, Amita; McDermott, Shaunagh; Shepard, Jo-Anne O; Little, Brent P.
  • Som A; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • Lang M; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • Yeung T; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • Carey D; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • Garrana S; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • Mendoza DP; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • Flores EJ; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • Li MD; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • Sharma A; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • McDermott S; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • Shepard JO; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
  • Little BP; Department of Radiology, Massachusetts General Hospital, Boston, MA, USA (A.S., M.L., S.G., D.P.M., E.J.F., M.D.L., A.S., S.M., J.A.O.S., B.P.L.); and Harvard Medical School, Boston, MA, USA (T.Y., D.C.).
Radiol Cardiothorac Imaging ; 2(5): e200276, 2020 Oct.
Article in English | MEDLINE | ID: covidwho-1155994
ABSTRACT

BACKGROUND:

RSNA expert consensus guidelines provide a framework for reporting CT findings related to COVID-19, but have had limited multireader validation.

PURPOSE:

To assess the performance of the RSNA guidelines and quantify interobserver variability in application of the guidelines in patients undergoing chest CT for suspected COVID-19 pneumonia. MATERIALS AND

METHODS:

A retrospective search from 1/15/20 to 3/30/20 identified 89 consecutive CT scans whose radiological report mentioned COVID-19. One positive or two negative RT-PCR tests for COVID-19 were considered the gold standard for diagnosis. Each chest CT scan was evaluated using RSNA guidelines by 9 readers (6 fellowship trained thoracic radiologists and 3 radiology resident trainees). Clinical information was obtained from the electronic medical record.

RESULTS:

There was strong concordance of findings between radiology training levels with agreement ranging from 60 to 86% among attendings and trainees (kappa 0.43 to 0.86). Sensitivity and specificity of "typical" CT findings for COVID-19 per the RSNA guidelines were on average 86% (range 72%-94%) and 80.2% (range 75-93%), respectively. Combined "typical" and "indeterminate" findings had a sensitivity of 97.5% (range 94-100%) and specificity of 54.7% (range 37-62%). A total of 163 disagreements were seen out of 801 observations (79.6% total agreement). Uncertainty in classification primarily derived from difficulty in ascertaining peripheral distribution, multiple dominant disease processes, or minimal disease.

CONCLUSION:

The "typical appearance" category for COVID-19 CT reporting has an average sensitivity of 86% and specificity rate of 80%. There is reasonable interreader agreement and good reproducibility across various levels of experience.
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Full text: Available Collection: International databases Database: MEDLINE Type of study: Diagnostic study / Experimental Studies / Observational study / Prognostic study Language: English Journal: Radiol Cardiothorac Imaging Year: 2020 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Diagnostic study / Experimental Studies / Observational study / Prognostic study Language: English Journal: Radiol Cardiothorac Imaging Year: 2020 Document Type: Article