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Magnetic Resonance Imaging Quantification of Pulmonary Perfusion using Calibrated Arterial Spin Labeling
Published on: May 30, 2011
Magnetic resonance imaging of acute pulmonary embolism
Christian Fink1, Sebastian Ley, Stefan O Schoenberg
1Department of Clinical Radiology, University Hospital Mannheim, Medical Faculty Mannheim-University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany. christian.fink@rad.ma.uni-heidelberg.de
Abstract:
Pulmonary embolism (PE) is a very common and potentially life-threatening disease. In comparison with CT, the clinical relevance of magnetic resonance imaging (MRI) for the assessment of PE is low. Nevertheless, as there are some potential advantages of MRI over CT (e.g. radiation free method, better safety profile of MR contrast media, capability of functional imaging). In certain patient, groups MRI might therefore be considered as a valuable alternative in the assessment of suspected PE. This article reviews the relevant MRI techniques for the evaluation of PE and gives an overview of the current literature for contrast-enhanced MR angiography of PE.
Insights
Pulmonary embolism (PE) is a serious condition. While CT is standard, magnetic resonance imaging (MRI) offers radiation-free assessment with safer contrast agents, potentially benefiting specific patients with suspected PE.
Area of Science:
- Radiology
- Cardiovascular Imaging
- Pulmonary Medicine
Background:
- Pulmonary embolism (PE) is a common, life-threatening condition.
- Computed tomography (CT) is the primary imaging modality for PE.
- Magnetic resonance imaging (MRI) has potential advantages over CT for PE assessment.
Purpose of the Study:
- To review MRI techniques for evaluating PE.
- To summarize the literature on contrast-enhanced MR angiography for PE.
- To explore MRI as an alternative to CT in specific patient groups.
Main Methods:
- Review of relevant MRI techniques for PE.
- Literature search for contrast-enhanced MR angiography in PE.
- Discussion of MRI advantages (radiation-free, contrast safety, functional imaging).
Main Results:
- MRI offers potential benefits including no radiation exposure.
- MR contrast agents may have a better safety profile than CT contrast.
- MRI allows for functional imaging, which CT cannot provide.
Conclusions:
- Despite lower current clinical relevance compared to CT, MRI shows promise for PE assessment.
- MRI may be a valuable alternative for specific patient groups due to its advantages.
- Further research and technique refinement could enhance MRI's role in diagnosing PE.
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