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Motion compensation strategies in magnetic resonance imaging
Ruud B van Heeswijk1, Gabriele Bonanno, Simone Coppo
1Department of Radiology, University of Lausanne, Lausanne, Switzerland. ruud.mri@gmail.com
Critical Reviews in Biomedical Engineering
|June 7, 2012
Summary
Motion artifacts significantly degrade cardiovascular MRI quality. This review details motion sources and compensation strategies to improve diagnostic accuracy without compromising image resolution or signal quality.
Area of Science:
- Medical Imaging
- Cardiovascular Imaging
- Biomedical Engineering
Background:
- Image quality in magnetic resonance imaging (MRI) is crucial for accurate diagnosis.
- Motion artifacts are a primary cause of reduced image quality in cardiovascular MRI.
- These artifacts can lead to misinterpretations and decreased diagnostic value.
Purpose of the Study:
- To review the principal sources of motion in cardiovascular MRI.
- To provide a comprehensive overview of motion compensation strategies.
- To discuss methods for overcoming motion artifacts while preserving image quality parameters.
Main Methods:
- Literature review of motion sources in cardiovascular MRI.
- Categorization of motion into cardiac, respiratory, and bulk patient movement.
- Summary and discussion of established and emerging compensation techniques.
Main Results:
- Identified three main sources of motion: cardiac, respiratory, and bulk patient movement.
- Detailed various compensation strategies tailored to each motion type.
- Highlighted the trade-offs between motion correction and image quality metrics.
Conclusions:
- Effective motion management is essential for high-quality cardiovascular MRI.
- A range of compensation strategies exist to mitigate motion artifacts.
- Continued research aims to optimize these strategies for improved diagnostic performance.
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