Results 1 to 10 of about 65,394 (259)
Scatter Artifact with Ga-68-PSMA-11 PET: Severity Reduced With Furosemide Diuresis and Improved Scatter Correction [PDF]
Molecular Imaging, 2018 Purpose: To assess the utility of furosemide diuresis and the role of an improved scatter correction algorithm in reducing scatter artifact severity on Ga-68- Prostate-specific membrane antigen (PSMA)-11 positron emission tomography (PET).
Courtney Lawhn-Heath MD +6 more
doaj +7 more sources
Empirical scatter correction: CBCT scatter artifact reduction without prior information
Medical Physics, 2022 AbstractBackgroundThe image quality of cone beam CT (CBCT) scans severely suffers from scattered radiation if no countermeasures are taken. Scatter artifacts may induce cupping and streak artifacts and lead to a reduced image contrast and wrong CT values of the reconstructed volumes.
Philip, Trapp +4 more
openaire +4 more sources
Journal of Medical Signals and Sensors, 2023 Background: Simulation of tomographic imaging systems with fan-beam geometry, estimation of scattered beam profile using Monte Carlo techniques, and scatter correction using estimated data have always been new challenges in the field of medical imaging ...
Iman Azinkhah +3 more
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Investigation of the halo-artifact in 68Ga-PSMA-11-PET/MRI. [PDF]
PLoS ONE, 2017 Combined positron emission tomography (PET) and magnetic resonance imaging (MRI) targeting the prostate-specific membrane antigen (PSMA) with a 68Ga-labelled PSMA-analog (68Ga-PSMA-11) is discussed as a promising diagnostic method for patients with ...
Thorsten Heußer +10 more
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Journal of Indian Academy of Oral Medicine and Radiology, 2021 Objectives: The aim of this study was to assess and compare quantitatively and qualitatively the artifacts induced by various commonly used dental restorative materials in different sections of CBCT image and to characterize the pattern of artifact ...
Laboni Ghorai, M L Asha, Jigna V Raja
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Surface Artifact Scatters, Data Collection, and Significance
Advances in Archaeological Practice, 2023 ABSTRACTThe three authors research surface archaeological records dominated by low-density scatters and isolated artifacts, archaeological phenomena frequently encountered during cultural resource management (CRM) projects in areas of the United States and Australia.
Matthew J. Douglass +2 more
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A patient-specific scatter artifacts correction method [PDF]
SPIE Proceedings, 2014 This paper provides a fast and patient-specific scatter artifact correction method for cone-beam computed tomography (CBCT) used in image-guided interventional procedures. Due to increased irradiated volume of interest in CBCT imaging, scatter radiation has increased dramatically compared to 2D imaging, leading to a degradation of image quality.
Zhao, Wei +5 more
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Characterization of Scattered X-Ray Photons in Dental Cone-Beam Computed Tomography. [PDF]
PLoS ONE, 2016 Scatter is a very important artifact causing factor in dental cone-beam CT (CBCT), which has a major influence on the detectability of details within images.
Ching-Ching Yang
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Mitigating cross‐phase modulation artifacts in femtosecond stimulated Raman scattering [PDF]
Journal of Raman Spectroscopy, 2020 AbstractIn contrast to spontaneous Raman scattering, coherent Raman scattering techniques, such as femtosecond stimulated Raman scattering (FSRS), show advantages for many applications. Besides an enhanced signal strength, FSRS is free of a nonresonant background but is affected by cross‐phase modulation (XPM).
Thomas Würthwein +3 more
openaire +2 more sources
Nuclear Engineering and Technology, 2023 In radiography, an antiscatter grid is a well-known device for eliminating unexpected x-ray scatter. We investigate a new stationary grid artifact suppression method based on a nonsubsampled contourlet transform (NSCT) incorporated with Gaussian band ...
Namwoo Kim +5 more
doaj +1 more source