On the definition of signal-to-noise ratio and contrast-to-noise ratio for FMRI data. [PDF]
PLoS ONE, 2013 Signal-to-noise ratio, the ratio between signal and noise, is a quantity that has been well established for MRI data but is still subject of ongoing debate and confusion when it comes to fMRI data.
Marijke Welvaert, Yves Rosseel
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Performance of A Statistical-Based Automatic Contrast-to-Noise Ratio Measurement on Images of the ACR CT Phantom [PDF]
Journal of ImagingThis study evaluates the performance of a statistical-based automatic contrast-to-noise ratio (CNR) measurement method on images of the ACR CT phantom under varying imaging parameters.
Choirul Anam +5 more
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The Feasibility of Contrast-to-Noise Ratio on Measurements to Evaluate CT Image Quality in Terms of Low-Contrast Detailed Detectability [PDF]
Medical Sciences, 2020 Background: To evaluate contrast-to-noise ratio (CNR) measurements in assessing image quality, in the context of the detectability performance of low-contrast detail (LCD), in computed tomography (CT) images, since exposure to elevated ionising-type ...
Haney A Alsleem, Hussain M Almohiy
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The Role of Contrast-to-noise Ratio in Assessing the Quality of Obstetric Ultrasound: Subjective Approach and the Influence of Maternal and Obstetric Factors [PDF]
Journal of Medical UltrasoundBackground: This study aimed to compare sonographer assessment of scan quality using contrast-to-noise ratio (CNR) for obstetric ultrasound images to identify the maternal and obstetric factors that could affect scan quality.
Rym Oudghiri Idrissi +1 more
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Automated contrast-to-noise ratio analysis in chest CT: validation of an open-source segmentation approach [PDF]
Insights into ImagingObjectives This study aimed to evaluate the feasibility and accuracy of automated contrast-to-noise ratio (CNR) analysis in chest CT using the open-source body and organ analysis (BOA) framework and to validate segmentation modifications for reproducible
Nikolas Beck +12 more
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The Generalized Contrast-to-Noise Ratio: A Formal Definition for Lesion Detectability [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2020 Alfonso Rodriguez-Molares +2 more
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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
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Journal of Medical Physics, 2021 In medical X-ray imaging, to perform optimal operations, it is essential for the user to understand whether a required image quality level which depends on a diagnostic task can be achieved with the imaging system used.
Sho Maruyama
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A study on correlation between thyroid CT radiation dose, image quality and female body composition [PDF]
Zhongguo aizheng zazhiBackground and purpose: With the increasing use of medical imaging examinations, Computed tomography (CT) scans have become one of the primary sources of effective dose.
Xigang SHEN +3 more
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Frontiers in Biomedical Technologies, 2022 Purpose: Gold Nanoparticles (GNPs) with high density and an atomic number have lately been proposed as an alternative contrast agent for Computed Tomography (CT).
Sara Khademi +2 more
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