What are the benefits of CT scanning in the diagnosis of pulmonary embolism (PE)?

Updated: Jun 06, 2019
  • Author: Daniel R Ouellette, MD, FCCP; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Answer

Like pulmonary angiography, CT scanning shows emboli directly, but it is noninvasive, cheaper than pulmonary angiography, and widely available. CT scanning is the only test that can provide significant additional information related to alternate diagnoses [72] ; spiral (helical) CT scanning results may suggest an alternative diagnosis in up to 57% of patients. This is a clear advantage of CT scanning over pulmonary angiography or scintigraphy.


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