Magnetic resonance imaging metal artifact reduction for eye plaque patient with dental braces
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چکیده
منابع مشابه
Magnetic resonance imaging metal artifact reduction for eye plaque patient with dental braces
Purpose To determine if metal artifact reduction can minimize magnetic susceptibility artifacts in the orbits for an eye plaque brachytherapy patient with metallic dental braces. Material and methods A 62-year-old female patient with a choroidal melanoma in the right eye received a 1.5 T magnetic resonance imaging (MRI) simulation for 3D eye plaque brachytherapy planning. The protocol include...
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■ Through-plane distortion: The local field offset leads to curved and frayed slices instead of the expected flat image plane (Fig. 1). Since both in-plane and through-plane distortions shift image pixels away from their real positions, image geometry appears to be distorted. In both cases, regions with severe field changes will lead to signal voids visible as black spots and signal pileups vis...
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ژورنال
عنوان ژورنال: Journal of Contemporary Brachytherapy
سال: 2017
ISSN: 1689-832X
DOI: 10.5114/jcb.2017.71184