Guidelines for the use of imaging techniques for the investigation of venous thromboembolic disease
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The diagnosis of venous thromboembolic disease remains a difficult challenge. Chest radiography, ventilation/perfusion lung scanning, noninvasive leg testing, and pulmonary angiography were evaluated with regard to sensitivity, specificity, positive and negative predictive values. The need for treatment, observation, or serial testing with respect to risks and benefits of treatment and likelihood of serious outcomes was evaluated. The evidence for conclusions was based on the methodology and values of the Canadian Task Force on the Periodic Health Examination. The Diagnostic Imaging Advisory Group of the Canadian Association of Emergency Physicians developed eight recommendations.
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