Search Results - "Viry, Anais"

Photon-Counting Detector CT for Liver Lesion Detection-Optimal Virtual Monoenergetic Energy for Different Simulated Patient Sizes and Radiation Doses by Racine, Damien, Mergen, Victor, Viry, Anaïs, Frauenfelder, Thomas, Alkadhi, Hatem, Vitzthum, Veronika, Euler, André

“…The aim of this study was to evaluate the optimal energy level of virtual monoenergetic images (VMIs) from photon-counting detector computed tomography (CT)…”
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Phantom task‐based image quality assessment of three generations of rapid kV‐switching dual‐energy CT systems on virtual monoenergetic images by Greffier, Joël, Viry, Anaïs, Barbotteau, Yves, Frandon, Julien, Loisy, Maeliss, Oliveira, Fabien, Beregi, Jean Paul, Dabli, Djamel

“…Purpose To compare the spectral performance of three rapid kV switching dual‐energy CT (DECT) systems on virtual monoenergetic images (VMIs) at low‐energy…”
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Assessment of task-based image quality for abdominal CT protocols linked with national diagnostic reference levels by Viry, Anaïs, Aberle, Christoph, Lima, Thiago, Treier, Reto, Schindera, Sebastian T., Verdun, Francis R., Racine, Damien

“…Objectives To assess task-based image quality for two abdominal protocols on various CT scanners. To establish a relationship between diagnostic reference…”
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Clinical commissioning of the first point‐of‐care spectral photon‐counting CT for the upper extremities by Gallego Manzano, Lucía, Monnin, Pascal, Sayous, Yann, Becce, Fabio, Damet, Jérôme, Viry, Anaïs

“…Background Acceptance testing and quality assurance (QA) of computed tomography (CT) scans are of great importance to ensure the appropriate performance of the…”
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Photon-Counting Detector CT With Quantum Iterative Reconstruction: Impact on Liver Lesion Detection and Radiation Dose Reduction by Racine, Damien, Mergen, Victor, Viry, Anaïs, Eberhard, Matthias, Becce, Fabio, Rotzinger, David C., Alkadhi, Hatem, Euler, André

“…To assess image noise, diagnostic performance, and potential for radiation dose reduction of photon-counting detector (PCD) computed tomography (CT) with…”
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Optimization of CT pulmonary angiography for pulmonary embolism using task-based image quality assessment and diagnostic reference levels: A multicentric study by Viry, Anaïs, Vitzthum, Veronika, Monnin, Pascal, Bize, Julie, Rotzinger, David, Racine, Damien

“…•Large variability of image quality and dose level for CT angiography protocols.•Dose optimization is necessary for many CTs.•Model observers’ strategy can…”
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Chances and challenges of photon-counting CT in musculoskeletal imaging by Mourad, Charbel, Gallego Manzano, Lucia, Viry, Anaïs, Booij, Ronald, Oei, Edwin H. G., Becce, Fabio, Omoumi, Patrick

“…In musculoskeletal imaging, CT is used in a wide range of indications, either alone or in a synergistic approach with MRI. While MRI is the preferred modality…”
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ANNUAL EXPOSURE OF THE SWISS POPULATION FROM MEDICAL IMAGING IN 2018 by Viry, Anaïs, Bize, Julie, Trueb, Philipp R, Ott, Barbara, Racine, Damien, Verdun, Francis R, LeCoultre, Régis

“…Abstract Nationwide surveys on radiation dose to the population from medical imaging are recommended in order to follow trends in population exposure. The goal…”
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Gated cardiac CT in infants: What can we expect from deep learning image reconstruction algorithm? by Gulizia, Marianna, Alamo, Leonor, Alemán-Gómez, Yasser, Cherpillod, Tyna, Mandralis, Katerina, Chevallier, Christine, Tenisch, Estelle, Viry, Anaïs

“…ECG-gated cardiac CT is now widely used in infants with congenital heart disease (CHD). Deep Learning Image Reconstruction (DLIR) could improve image quality…”
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Performance of Spectral Photon-Counting Coronary CT Angiography and Comparison with Energy-Integrating-Detector CT: Objective Assessment with Model Observer by Rotzinger, David C, Racine, Damien, Becce, Fabio, Lahoud, Elias, Erhard, Klaus, Si-Mohamed, Salim A, Greffier, Joël, Viry, Anaïs, Boussel, Loïc, Meuli, Reto A, Yagil, Yoad, Monnin, Pascal, Douek, Philippe C

“…To evaluate spectral photon-counting CT's (SPCCT) objective image quality characteristics in vitro, compared with standard-of-care energy-integrating-detector…”
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Brain image quality according to beam collimation width and image reconstruction algorithm: A phantom study by Greffier, Joël, Viry, Anaïs, Durand, Quentin, Hajdu, Steven David, Frandon, Julien, Beregi, Jean Paul, Dabli, Djamel, Racine, Damien

“…•Wide axial acquisition reduces total patient dose and image noise in comparison to helical acquisition.•Wide axial acquisition does not change spatial…”
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Objective comparison of high‐contrast spatial resolution and low‐contrast detectability for various clinical protocols on multiple CT scanners by Racine, Damien, Viry, Anaïs, Becce, Fabio, Schmidt, Sabine, Ba, Alexandre, Bochud, François O., Edyvean, Sue, Schegerer, Alexander, Verdun, Francis R.

“…Purpose We sought to compare objectively computed tomography (CT) scanner performance for three clinically relevant protocols using a task‐based image quality…”
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Task-based characterization of a deep learning image reconstruction and comparison with filtered back-projection and a partial model-based iterative reconstruction in abdominal CT: A phantom study by Racine, Damien, Becce, Fabio, Viry, Anais, Monnin, Pascal, Thomsen, Brian, Verdun, Francis R., Rotzinger, David C.

“…•Deep learning image reconstruction enhances CT image quality and saves radiation dose.•Deep learning image reconstruction reduces noise while maintaining…”
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Clinical Utility of Multi‐Energy Spectral Photon‐Counting Computed Tomography in Crystal Arthritis by Stamp, Lisa K., Anderson, Nigel G., Becce, Fabio, Rajeswari, Maya, Polson, Matthew, Guyen, Olivier, Viry, Anais, Choi, Chloe, Kirkbride, Tracy E., Raja, Aamir Y.

“…Objective To determine whether novel multi‐energy spectral photon‐counting computed tomography (SPCCT) imaging can detect and differentiate between monosodium…”
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Task-based quantification of image quality using a model observer in abdominal CT: a multicentre study by Racine, Damien, Ryckx, Nick, Ba, Alexandre, Becce, Fabio, Viry, Anais, Verdun, Francis R., Schmidt, Sabine

“…Objective We investigated the variability in diagnostic information inherent in computed tomography (CT) images acquired at 68 different CT units, with the…”
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Channelized Hotelling observer correlation with human observers for low-contrast detection in liver CT images by Ba, Alexandre, Abbey, Craig K, Racine, Damien, Viry, Anaïs, Verdun, Francis R, Schmidt, Sabine, Bochud, François O

“…Task-based image quality procedures in CT that substitute a human observer with a model observer usually use single-slice images with uniform backgrounds from…”
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Multi-energy photon-counting computed tomography versus other clinical imaging techniques for the identification of articular calcium crystal deposition by Bernabei, Ilaria, Sayous, Yann, Raja, Aamir Y, Amma, Maya R, Viry, Anais, Steinmetz, Sylvain, Falgayrac, Guillaume, van Heeswijk, Ruud B, Omoumi, Patrick, Pascart, Tristan, Stamp, Lisa K, Nasi, Sonia, Hügle, Thomas, Busso, Nathalie, So, Alexander K, Becce, Fabio

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[P022] Assessment of the detectability of a moving guidewire in fluoroscopically-guided procedures using a mathematical model observer by Ryckx, Nick, Racine, Damien, Viry, Anais, Verdun, Francis

“…Fluoroscopically-guided procedures are among the most irradiating medical interventions. Thus, a fair amount of pressure is put on reducing patient exposure…”
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Effects of various generations of iterative CT reconstruction algorithms on low-contrast detectability as a function of the effective abdominal diameter: A quantitative task-based phantom study by Viry, Anais, Aberle, Christoph, Racine, Damien, Knebel, Jean-François, Schindera, Sebastian T., Schmidt, Sabine, Becce, Fabio, Verdun, Francis R.

“…•A quantitative task-based approach is proposed to assess low-contrast detectability.•IR algorithms do not significantly improve low-contrast detectability in…”
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Winds of change in imaging of calcium crystal deposition diseases by Becce, Fabio, Viry, Anais, Stamp, Lisa K., Pascart, Tristan, Budzik, Jean-François, Raja, Aamir

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