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Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
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Pulmonary thromboembolism: new diagnostic imaging techniques.

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Accurate diagnosis of pulmonary thromboembolism (PTE) is crucial. Dual-energy computed tomography offers a promising imaging tool for evaluating PTE by assessing pulmonary perfusion via iodine mapping.

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Area of Science:

  • Radiology
  • Cardiology
  • Pulmonary Medicine

Background:

  • Pulmonary thromboembolism (PTE) diagnosis is critical for patient outcomes.
  • Clinical presentation and risk factors for PTE are often nonspecific, complicating diagnosis.
  • Imaging modalities are essential for definitive PTE diagnosis.

Purpose of the Study:

  • To review the importance of accurate pulmonary thromboembolism diagnosis.
  • To discuss current and emerging imaging techniques for PTE evaluation.
  • To highlight the role of dual-energy computed tomography in assessing pulmonary perfusion.

Main Methods:

  • Review of current literature on pulmonary thromboembolism diagnosis.
  • Focus on computed tomography (CT) as a primary imaging modality.
  • Emphasis on dual-energy CT (DECT) and its iodine mapping capabilities for perfusion assessment.

Main Results:

  • Computed tomography is the most utilized imaging method for PTE.
  • Dual-energy CT provides novel insights into pulmonary perfusion through iodine mapping.
  • DECT shows promise as an advanced tool for PTE evaluation.

Conclusions:

  • Accurate and timely diagnosis of PTE is vital to reduce morbidity and mortality.
  • Dual-energy CT represents a significant advancement in imaging for pulmonary thromboembolism.
  • Iodine mapping with DECT enhances the evaluation of pulmonary perfusion in suspected PTE.