Metal Artifact Reduction
A metal artifact reduction method for a dental CT based on adaptive local thresholding and prior image generation
... Many metal artifact reduction (MAR) methods have been developed since the intro- duction of a medical CT to the clinical field decades ...the metal trace by interpolating the pixel values ...
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Implementation of iterative metal artifact reduction in the pre-planning-procedure of three-dimensional physical modeling
... extracorporeal artifact-structures, disturbing the fabrica- tion of the 3D-model, adding additional time-consuming segmentation steps to eliminate those ...dedicated metal artifact reduction ...
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Evaluation of CT Angiography Image Quality Acquired with Single-Energy Metal Artifact Reduction (SEMAR) Algorithm in Patients After Complex Endovascular Aortic Repair
... novel metal artifact reduction algorithm that can be used in a single-energy mode that does not complicate the CT acquisition protocol and does not increase radiation dose ...
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Magnetic resonance imaging of metal artifact reduction sequences in the assessment of metal-on-metal hip prostheses
... in metal artifact reduction techniques in magnetic resonance (MR) have, in large part, been stimulated by the advent of soft tissue complications associated with modern metal-on-metal ...
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Gaussian diffusion sinogram inpainting for X-ray CT metal artifact reduction
... containing metal, the low energy photons are absorbed and output mostly contains high-energy photons, thus the high-energy photons detected by detector become ...many metal artifact reduction ...
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CT Metal Artifact Reduction in the Spine: Can an Iterative Reconstruction Technique Improve Visualization?
... iterative metal artifact reduction technique under ...the metal artifact reduction prototype under study; Travel/Accommodations/Meeting Expenses Unrelated to Activities Listed: ...
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High Resolution C Arm CT and Metal Artifact Reduction Software: A Novel Imaging Modality for Analyzing Aneurysms Treated with Stent Assisted Coil Embolization
... The effectiveness of the metal artifact reduction can be influ- enced by the volume and attenuation of the high-attenuating ma- terial adjacent to the target vessel. If the stent was surrounded by ...
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Metal artifact reduction on cervical CT images by deep residual learning
... through metal objects, resulting in only weak signals reaching the ...be metal shadows in the raw projection data. These metal shadows will intro- duce streak artifacts, which can spread to nearby ...
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Metal artifact reduction in patients with dental implants using multispectral three-dimensional data acquisition for hybrid PET/MRI
... relative reduction of the signal void artifact was calculated for each implant and tested for statistical significance using the Wilcoxon signed-rank ...of artifact size on PET AC was simulated in ...
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Evaluation of an optimized metal artifact reduction algorithm for flat-detector angiography compared to DSA imaging in follow-up after neurovascular procedures
... and metal artifact load was least but also radiation exposure in- creased due to the increased number of ...used metal implants and the different ...
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Combining dual-tree complex wavelets and multiresolution in iterative CT reconstruction with application to metal artifact reduction
... method already is an iterative method, inpainting was chosen here instead of iterative approaches to optimize the efficiency of the algorithm. Although inpainting fills the gaps in an image efficiently, it can lead to ...
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Effect of exposure parameters of cone beam computed tomography on metal artifact reduction around the dental implants in various bone densities
... Computed tomography (CT) is an important imaging modality for the detection of soft tissue lesions in the oral cavity and head and neck region [1]. However, Use of CT for dental purposes is limited due to high cost, ...
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Metal Artifact Reduction for Clipping and Coiling in Interventional C Arm CT
... the metal often obscure image de- tails and may prevent a proper diagnosis of areas of ...case. Metal artifacts, mainly due to beam-hardening, scattered radiation, sampling, and noise artifacts were largely ...
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Ultra-high-resolution subtraction CT angiography in the follow-up of treated intracranial aneurysms
... reduce metal artifacts, metal artifact reduction (MAR) algorithms like single-energy metal artifact reduction (SEMAR) can be applied ...
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Comparison of metal artifact in digital tomosynthesis and computed tomography for evaluation of phantoms
... compared metal artifact in X-ray digital tomo- synthesis (DT) and modern computed tomography (CT) reconstruction to improve the image ...(FBP), metal artifact reduction (MAR) ...
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Henry_unc_0153D_16813.pdf
... motion artifact. Power et al. (2014) states that the artifact caused by even small amounts of motion could result in spurious findings, and several studies have already been reevaluated to ensure ...
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Reduction of motion artifact in pulse oximetry by smoothed pseudo Wigner-Ville distribution
... Six healthy subjects participated in the study. Four kinds of motions have been investigated: horizontal movement (M1) and vertical movement (M2) of the hand, as well as the bending motion (M3) and pressing motion (M4) ...
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DEBLOCKING FILTER BASED ARTIFACT REDUCTION USING PSEUDO RANDOM NOISE MASKING
... In this project a new algorithm is implemented for H.264/AVC Video compression Standard. First, the Deblocking filtering method is applied for reduction of Block Artifacts. Making good use of the data dependence ...
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Intravenous C Arm Conebeam CT Angiography following Long Term Flow Diverter Implantation: Technologic Evaluation and Preliminary Results
... The study end points for the diagnostic value of IVCBCTA in- cluded the quality of intravascular contrast that was rated as “good” or “suboptimal,” the presence of motion artifacts, and the presence of metal ...
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Artifact Reduction of Different Metallic Implants in Flat Detector C Arm CT
... significant reduction of metal ar- tifacts was achieved in all volume images of various metal objects, which showed a lower Hounsfield unit range and noise (P ⬍ ...
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