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Imaging near metal with a MAVRIC-SEMAC hybrid
1Applied Science Laboratory, GE Healthcare, Waukesha, Wisconsin 53188, USA. kevin.koch@ge.com
Magnetic Resonance in Medicine
|October 29, 2010
Summary
New imaging techniques, multi-acquisition with variable resonance image combination (MAVRIC) and slice-encoding metal artifact correction (SEMAC), significantly reduce metal artifacts. A hybrid approach combines these methods for high-resolution scans near joint replacements.
Area of Science:
- Medical Imaging
- Radiology
- Biomedical Engineering
Background:
- Metal implants cause significant artifacts in medical imaging, hindering diagnosis.
- Conventional spin-echo imaging is susceptible to these artifacts.
- Existing techniques like MAVRIC and SEMAC offer partial solutions.
Purpose of the Study:
- To connect and discuss MAVRIC and SEMAC techniques.
- To develop a hybrid imaging technique combining MAVRIC and SEMAC.
- To evaluate the hybrid technique's performance in reducing artifacts near total joint replacements.
Main Methods:
- Utilized multi-acquisition with variable resonance image combination (MAVRIC).
- Employed slice-encoding metal artifact correction (SEMAC).
- Developed and applied a hybrid technique integrating MAVRIC and SEMAC principles.
Main Results:
- The hybrid technique significantly reduced image artifacts near metal hardware.
- High-resolution images were achieved in the presence of total joint replacements.
- Minimal artifacts were observed in clinical settings.
Conclusions:
- The developed hybrid technique effectively combines MAVRIC and SEMAC strengths.
- This approach offers a promising solution for artifact reduction in metal implant imaging.
- Clinical application demonstrated its capability for producing high-quality, artifact-free images.
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