نتایج جستجو برای: metal artifact

تعداد نتایج: 215918  

Journal: :Magnetic resonance in medicine 2006
Ross D Venook Nathaniel I Matter Meena Ramachandran Sharon E Ungersma Garry E Gold Nicholas J Giori Albert Macovski Greig C Scott Steven M Conolly

A prepolarized MRI (PMRI) scanner was used to image near metal implants in agar gel phantoms and in in vivo human wrists. Comparison images were made on 1.5- and 0.5-T conventional whole-body systems. The PMRI experiments were performed in a smaller bore system tailored to extremity imaging with a prepolarization magnetic field of 0.4 T and a readout magnetic field of 27-54 mT (1.1-2.2 MHz). Sc...

Journal: :IEEE transactions on radiation and plasma medical sciences 2022

Due to the presence of metallic implants, imaging quality computed tomography (CT) would be heavily degraded. With rapid development deep learning, several neural network models have been proposed for metal artifact reduction (MAR). Since dual-domain MAR methods can leverage hybrid information from both sinogram and image domains, they significantly improved performance compared single domain m...

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