Signal-to-Noise Ratio and Contrast-to-Noise Ratio Measurements for Next Generation Tomosynthesis. [PDF]
Proc SPIE Int Soc Opt Eng, 2021 It is standard for the x-ray source in conventional digital breast tomosynthesis (DBT) acquisitions to move strictly along the chest wall of the patient. A prototype, next-generation tomosynthesis (NGT) system has been developed that is capable of acquiring customized geometries with source motion parallel and perpendicular to the chest wall.
Martin DA +5 more
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The Generalized Contrast-to-Noise Ratio: A Formal Definition for Lesion Detectability. [PDF]
IEEE Trans Ultrason Ferroelectr Freq Control, 2020 In the last 30 years, the contrast-to-noise ratio (CNR) has been used to estimate the contrast and lesion detectability in ultrasound images. Recent studies have shown that the CNR cannot be used with modern beamformers, as dynamic range alterations can produce arbitrarily high CNR values with no real effect on the probability of lesion detection.
Rodriguez-Molares A +6 more
europepmc +6 more sources
Contrast-to-Noise Ratio Optimization in Coronary Computed Tomography Angiography: Validation in a Swine Model. [PDF]
Acad Radiol, 2019 Hubbard L +4 more
europepmc +3 more sources
An adult and pediatric size-based contrast administration reduction phantom study for single and dual-energy CT through preservation of contrast-to-noise ratio. [PDF]
J Appl Clin Med PhysWang J +4 more
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Single Atom Detection from Low Contrast-to-Noise Ratio Electron Microscopy Images [PDF]
Physical Review Letters, 2018 Single atom detection is of key importance to solving a wide range of scientific and technological problems. The strong interaction of electrons with matter makes transmission electron microscopy one of the most promising techniques. In particular, aberration correction using scanning transmission electron microscopy has made a significant step forward
Jarmo Fatermans +6 more
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The Application of Contrast-Enhanced 3D-STIR-VISTA MR Imaging of the Brachial Plexus
Journal of the Belgian Society of Radiology, 2022 Objective: To introduce contrast-enhanced 3D-STIR-VISTA sequence that would improve the image quality for the brachial plexus imaging and enhance the contrast between the brachial plexus and surrounding tissues.
Dingsheng Han +3 more
doaj +1 more source
Modeling contrast-to-noise ratio from list mode reconstructions of 68Ga DOTATATE PET/CT: predicting detectability of hepatic metastases in shorter acquisition PET reconstructions. [PDF]
Am J Nucl Med Mol Imaging, 2023 Silosky M +5 more
europepmc +2 more sources
Trabecular bone histomorphometric measurements and contrast-to-noise ratio in CBCT. [PDF]
Dentomaxillofac Radiol, 2014 The aim of this study was to evaluate how imaging parameters at clinical dental CBCT affect the accuracy in quantifying trabecular bone structures, contrast-to-noise ratio (CNR) and radiation dose.15 radius samples were examined using CBCT (Accuitomo FPD; J. Morita Mfg., Kyoto, Japan).
Klintström E +4 more
europepmc +5 more sources
Control of Healthcare-Associated Infections using Silver Nanoparticles in Radiology
Journal of Medical Physics, 2022 Aims: The control of healthcare-associated infections (HCAIs) is a significant concern in the field of radiology due to multiple contact-transmitted pathogens on imaging devices.
Gyunheung Ahn, Sungchul Kim
doaj +1 more source
Improvements in elastographic contrast-to-noise ratio using spatial-angular compounding [PDF]
Ultrasound in Medicine & Biology, 2005 Spatial-angular compounding is a new technique developed for improving the signal-to-noise ratio (SNR) in elastography. Under this method, elastograms of a region-of-interest (ROI) are obtained from a spatially weighted average of local strain estimated along different insonification angles.
Udomchai Techavipoo, Tomy Varghese
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