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Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
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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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Multimodality imaging of pulmonary infarction.

T J P Bray1, K H Mortensen2, D Gopalan1

  • 1Department of Radiology, Papworth Hospital NHS Foundation Trust, Ermine Street, Papworth Everard, Cambridge CB23 3RE, United Kingdom.

European Journal of Radiology
|September 22, 2014
PubMed
Summary

Pulmonary infarction occurs when blood flow to the lungs is suddenly blocked, often by thromboembolic disease. Recognizing pulmonary infarction on imaging can be challenging due to varied appearances.

Keywords:
Arterial infarctionFat embolismIn situ thrombusPulmonary embolusPulmonary infarctionPulmonary torsionSeptic infarctionThromboembolic diseaseVasculitic infarctVenous infarction

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Area of Science:

  • Pulmonary Medicine
  • Radiology
  • Pathology

Background:

  • Pulmonary infarction results from interrupted arterial and venous flow to lung tissue.
  • Factors influencing impact include occlusion site, speed, and bronchial artery compensation.
  • Thromboembolic disease is a common cause, but other conditions can also lead to infarction.

Purpose of the Study:

  • To review the etiologies and imaging appearances of pulmonary infarction.
  • To highlight the diagnostic challenges associated with pulmonary infarction.
  • To emphasize the role of multimodality imaging in diagnosing pulmonary infarction.

Main Methods:

  • Literature review of pulmonary infarction.
  • Analysis of imaging findings in pulmonary infarction cases.
  • Case study illustrations of diagnostic approaches.

Main Results:

  • Pulmonary infarction occurs when oxygen supply is critically reduced due to occlusion.
  • Imaging findings can be atypical, differing from classic wedge-shaped defects.
  • Various intrinsic and extrinsic pathologies can cause pulmonary infarction.

Conclusions:

  • Pulmonary infarction diagnosis requires consideration of diverse causes.
  • Multimodality imaging is crucial for accurate diagnosis.
  • Understanding varied imaging manifestations aids in timely recognition.