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Echo-planar pediatric imager.
L E Crooks1, M Arakawa, N M Hylton
1Radiologic Imaging Laboratory, University of California, San Francisco 94080.
Radiology
|January 1, 1988
Summary
This study details a pediatric echo-planar magnetic resonance (MR) imager, achieving high spatial resolution and signal-to-noise ratios in rapid imaging times. Chemical-shift displacement remains a key challenge.
Area of Science:
- Medical Imaging
- Physics
- Pediatric Medicine
Background:
- Large-aperture echo-planar magnetic resonance (MR) imagers face practical construction challenges.
- Existing MR technology has limitations in speed and pediatric application.
Purpose of the Study:
- To describe the implementation and performance of a pediatric echo-planar MR imager.
- To evaluate the feasibility of achieving high-quality MR imaging in children using echo-planar techniques.
Main Methods:
- Development and implementation of a specialized pediatric echo-planar MR imager.
- Testing and performance evaluation of the imager using standard imaging metrics.
Main Results:
- Achieved spatial resolution and signal-to-noise ratios comparable to 1982 state-of-the-art MR imagers.
- Imaging times were significantly reduced to 0.05-0.15 seconds.
- Obtained both T1 and T2 relaxation information in echo-planar mode.
Conclusions:
- The developed pediatric echo-planar MR imager is effective for rapid, high-quality imaging.
- T1 and T2 information can be acquired efficiently using this technique.
- Chemical-shift displacement is a significant artifact that requires further investigation and mitigation.