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Spiral CT for pulmonary embolism.

P C Goodman1

  • 1Department of Radiology, Duke University, Durham, North Carolina 27710, USA. goodm008@mc.duke.edu

Seminars in Respiratory and Critical Care Medicine
|August 10, 2005
PubMed
Summary

Spiral computed tomographic (CT) angiography is a highly accurate, noninvasive test for pulmonary embolism. Its high negative predictive value makes it the recommended first-line diagnostic imaging test for patients with suspected pulmonary embolism.

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Area of Science:

  • Radiology
  • Diagnostic Imaging
  • Cardiopulmonary Medicine

Background:

  • Pulmonary embolism (PE) diagnosis is challenging with traditional methods like ventilation perfusion scans.
  • Pulmonary angiography, while accurate, is invasive and underutilized.
  • There is a need for a reliable, noninvasive imaging modality for PE.

Purpose of the Study:

  • To review the literature on spiral computed tomographic (CT) angiography for diagnosing pulmonary embolism.
  • To evaluate the accuracy, reliability, and cost-effectiveness of spiral CT in PE detection.

Main Methods:

  • Literature review of studies evaluating spiral CT angiography for pulmonary embolism.
  • Analysis of sensitivity, specificity, and negative predictive value of spiral CT.
  • Assessment of spiral CT's ability to provide alternative diagnoses.

Main Results:

  • Spiral CT angiography is a highly accurate, noninvasive diagnostic tool for pulmonary embolism.
  • The examination demonstrates a high negative predictive value, supporting its use.
  • Spiral CT frequently provides alternative diagnoses, enhancing patient management.

Conclusions:

  • Spiral CT angiography should be considered the first-line diagnostic test for pulmonary embolism.
  • Its high accuracy and noninvasive nature address limitations of previous methods.
  • Further evaluation of cost-effectiveness and consistency is supported by current literature.

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