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Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
Published on: April 12, 2024
Dual-energy computed tomography in pulmonary embolism
1Department of Medical Imaging, Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, Jiangsu 210002, China. cjr.luguangming@vip.163.com
The British Journal of Radiology
|June 17, 2010
Summary
Dual-energy CT (DECT) imaging aids pulmonary embolism detection by visualizing contrast enhancement. However, this technique introduces potential pitfalls causing false results, which this review addresses.
Area of Science:
- Radiology
- Medical Imaging
Background:
- Modern dual-energy CT (DECT) scanners allow contrast material differentiation without unenhanced scans.
- DECT imaging of pulmonary parenchymal contrast enhancement aids in detecting defects.
Purpose of the Study:
- To present the technique, clinical applications, and causes of false results related to DECT pulmonary enhancement defects in pulmonary embolism.
- To provide remedies for these false results.
Main Methods:
- Pictorial review of dual-energy CT scans.
- Analysis of pulmonary parenchymal contrast enhancement patterns.
- Identification of artifacts and pitfalls.
Main Results:
- DECT improves pulmonary embolism detection by enhancing visualization of defects.
- New pitfalls associated with DECT pulmonary enhancement are identified.
- Causes and remedies for false positive/negative findings are discussed.
Conclusions:
- Dual-energy CT is a valuable tool for pulmonary embolism diagnosis.
- Awareness of DECT-specific pitfalls is crucial for accurate interpretation.
- Proper technique and understanding of artifacts can mitigate false results.
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