Computed tomography evaluation in acute stroke: retrospective study.
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AbstractOBJECTIVE: To determine the accuracy with which 'frontline' hospital doctors interpret computed tomography brain scans. DESIGN: Retrospective study. SETTING: University teaching hospital, Hong Kong. PARTICIPANTS: Medical and emergency room doctors. MAIN OUTCOME MEASURE: Accuracy in correctly identifying features of acute stroke on 18 computed tomography brain scans. RESULTS: Computed tomography brain scan images showing easily detectable haemorrhage and infarct were identified in 91% and 90% of scans, respectively; but difficult-to-interpret scans with subtle features of haemorrhage or infarct were only correctly identified in 46% and 45% of readings, respectively. More experienced doctors did not perform better than junior doctors (P=0.69; 95% confidence interval, -1.84 to 2.73) and the mean total score for doctors from the emergency department did not differ significantly from that of doctors from the medical department (P=0.57; 95% confidence interval, -2.98 to 1.67). CONCLUSION: Early signs of infarct and small bleeds on computed tomography brain scans are not well recognised by doctors, regardless of clinical exposure or seniority. Ineligible patients may be treated with thrombolytic therapy as a result of such computed tomography scan misinterpretation.
All Author(s) ListHui A.C., Man C.Y., Tang A.S., Au-Yeung K.M.
Journal nameHong Kong Medical Journal
Year2002
Month6
Day1
Volume Number8
Issue Number3
PublisherHong Kong Academy of Medicine Press
Place of PublicationHong Kong
Pages177 - 180
ISSN1024-2708
eISSN2226-8707
LanguagesEnglish-United Kingdom

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