Abstract
When the probability of pulmonary embolism is low, the decision to do a computed tomography angiography (CTA) of the pulmonary vessels is based on the D-dimer concentration. However, excessive dependence on this parameter can result in unnecessary imaging studies, inappropriate treatment, or an inappropriate increase in the estimated probability of venous thromboembolism developing.The main objective of this study was to determine when CTA of pulmonary vessels could be avoided in patients with low clinical probability of pulmonary embolism through an efficient literature search of studies published about this question.
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