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Attenuation Correction for Magnetic Resonance Coils in Combined PET/MR Imaging: A Review
Mootaz Eldib1, Jason Bini2, David D Faul3
1Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA; Department of Biomedical Engineering, The City College of New York, 160 Convent Avenue, New York, NY 10031, USA.
Abstract:
With the introduction of clinical PET/magnetic resonance (MR) systems, novel attenuation correction methods are needed, as there are no direct MR methods to measure the attenuation of the objects in the field of view (FOV). A unique challenge for PET/MR attenuation correction is that coils for MR data acquisition are located in the FOV of the PET camera and could induce significant quantitative errors. In this review, current methods and techniques to correct for the attenuation of a variety of coils are summarized and evaluated.
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