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[The study of the MRI artifacts caused by keepers]
Bin Wei1, Fu-qiang Zhang, Qiang Yu
1Department of Prosthodontics, School of Stomatology, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China.
Shanghai Kou Qiang Yi Xue = Shanghai Journal of Stomatology
|February 26, 2004
Summary
Disc-shaped keepers significantly reduce magnetic resonance imaging (MRI) artifacts compared to post-shaped keepers. This finding is crucial for improving image quality in MRI scans.
Area of Science:
- Medical Imaging
- Biomedical Engineering
Context:
- Magnetic Resonance Imaging (MRI) is a vital diagnostic tool.
- MRI artifacts can degrade image quality and obscure anatomical details.
- Keepers are used in some medical devices, potentially influencing MRI scans.
Purpose:
- To quantify and compare the extent of MRI artifacts generated by different types of keepers (disc-shaped vs. post-shaped).
Summary:
- This study measured MRI artifact diameters caused by disc-shaped and post-shaped keepers in a phantom and a human subject using 0.15 Tesla MRI devices.
- Disc-shaped keepers produced significantly smaller artifacts (95.5mm) compared to post-shaped keepers (139.4mm).
Impact:
- Findings suggest that the design of keepers can be optimized to minimize MRI artifacts.
- This research aids in developing MRI-compatible devices and improving diagnostic accuracy.