How is pulmonary embolism (PE) diagnosed?

Updated: Jun 06, 2019
  • Author: Kaushal (Kevin) Patel, MD; Chief Editor: Barry E Brenner, MD, PhD, FACEP  more...
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Answer

PE is most often diagnosed by means of ventilation/perfusion lung scanning, which is reported as having a low, moderate, or high probability of depicting PE. When the results of these studies are equivocal, the use of spiral CT scans may be able to demonstrate intravascular thrombosis. In many institutions, the criterion standard for diagnosing PE is pulmonary angiography.


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