Why the study?
What clinical characteristics are associated with false-negative low- or very-low-probability lung scan interpretations in patients evaluated for acute pulmonary embolism?
What clinical characteristics are associated with false-negative low- or very-low-probability lung scan interpretations in patients evaluated for acute pulmonary embolism?
Patients with low-probability lung scans but clinical risk factors like immobilization or recent surgery have a significantly higher prevalence of pulmonary embolism, warranting further diagnostic evaluation.
Authors
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Multiple risk factors may warrant further PE testing despite low-probability scans; leaves open prospective validation of risk-stratified algorithms.
Daniel F. Worsley (1994) studied this question.
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