Results 1 to 10 of about 3,069,323 (369)

Reducing contrast media and radiation dose in CT angiography at low tube voltage: animal study with photon-counting detector CT [PDF]

European Radiology Experimental
Background Reducing radiation and contrast media (CM) doses in computed tomography angiography (CTA) is especially relevant for potentially vulnerable populations.
Konstantin Klambauer, Thomas Flohr, Lukas Jakob Moser, Victor Mergen, Matthias Eberhard, Andreas Prokein, Hatem Alkadhi, Hubertus Pietsch, Gregor Jost   +8 more
doaj   +2 more sources

Transport properties of heterogeneous materials derived from Gaussian random fields: Bounds and Simulation [PDF]

Phys. Rev. E Vol 51(5) pages 4141-4154 (1995), 2000
We investigate the effective conductivity ($\sigma_e$) of a class of amorphous media defined by the level-cut of a Gaussian random field. The three point solid-solid correlation function is derived and utilised in the evaluation of the Beran-Milton bounds.
A. P. Roberts, A. S. Skal, A. S. Skal, B. Lu, D. R. McKenzie, G. Stell, G. W. Milton, G. W. Milton, G. W. Milton, G. W. Milton, H. L. Weissberg, H. L. Weissberg, I. C. Kim, I. C. Kim, I. C. Kim, J. A. Reynolds, J. D. Murray, J. F. Thovert, J. G. Berryman, J. G. Berryman, J. W. Cahn, L. C. Shen, M. Abramowitz, M. B. Isichenko, M. Beran, M. Beran, M. C. Wang, M. Doi, M. N. Miller, M. Teubner, M. Teubner, Max Teubner, N. Bleistein, N. F. Berk, N. F. Berk, P. B. Corson, P. B. Corson, P. B. Corson, P. B. Corson, P. Debye, P. Pieruschka, P. Pieruschka, P. Pieruschka, P. Weiner, R. B. Saeger, R. Blumenfeld, R. C. McPhedran, R. Li, R. T. Bonnecaze, R. T. Bonnecaze, R. Zallen, S. Torquato, S. Torquato, S. Torquato, S. Torquato, S. Torquato, S. Torquato, S. Torquato, W. F. Brown, W. F. Brown, W. H. Press, Z. Hashin   +61 more
arxiv   +5 more sources

Low kV Computed Tomography of Parenchymal Abdominal Organs—A Systematic Animal Study of Different Contrast Media Injection Protocols

Tomography, 2021
Objectives: To evaluate multiphase low kV computed tomography (CT) imaging of the abdomen with reduced contrast media (CM) dose using different injection protocols.
Daniel Overhoff, Gregor Jost, Michael McDermott, Olaf Weber, Hubertus Pietsch, Stefan O. Schoenberg, Ulrike Attenberger   +6 more
doaj   +1 more source

Hypersensitivity to Gadolinium-Based Contrast Media

Frontiers in Allergy, 2022
Gadolinium-based contrast agents (GBCAs) are frequently used in magnetic resonance imaging (MRI) examinations to increase sensitivity in diagnoses. Recently, an increase in the description of hypersensitivity reactions to GBCAs has been detected.
M. Teresa Gracia Bara, M. Teresa Gracia Bara, Alicia Gallardo-Higueras, Esther M. Moreno, Esther M. Moreno, Esther M. Moreno, Esther M. Moreno, Elena Laffond, Elena Laffond, Elena Laffond, Francisco J. Muñoz Bellido, Francisco J. Muñoz Bellido, Francisco J. Muñoz Bellido, Cristina Martin, Cristina Martin, Miriam Sobrino, Miriam Sobrino, Eva Macias, Eva Macias, Eva Macias, Sonia Arriba-Méndez, Sonia Arriba-Méndez, Sonia Arriba-Méndez, Rosita Castillo, Ignacio Davila, Ignacio Davila, Ignacio Davila, Ignacio Davila   +27 more
doaj   +1 more source

Contrast Medium Hypersensitivity: A Large Italian Study with Long-Term Follow-Up

Biomedicines, 2022
Hypersensitivity reactions (HRs) to contrast media (CM) are a major problem. We compared differences of HRs to iodinated contrast media (ICM) versus gadolinium-based contrast media (GBCM), collecting data on prevalence, type, latency and severity ...
Eleonora Nucera, Giuseppe Parrinello, Sebastiano Gangemi, Alessandro Buonomo, Arianna Aruanno, Franziska Michaela Lohmeyer, Riccardo Inchingolo, Angela Rizzi   +7 more
doaj   +1 more source

Individualized scan protocols for CT angiography: an animal study for contrast media or radiation dose optimization

European Radiology Experimental, 2023
Background We investigated about optimization of contrast media (CM) dose or radiation dose in thoracoabdominal computed tomography angiography (CTA) by automated tube voltage selection (ATVS) system configuration and CM protocol adaption. Methods In six
Johannes Haubold, Sebastian Zensen, René Hosch, Benedikt Michael Schaarschmidt, Denise Bos, Bernhardt Schmidt, Thomas Flohr, Yan Li, Michael Forsting, Hubertus Pietsch, Felix Nensa, Gregor Jost   +11 more
doaj   +1 more source

Use of In Vivo Imaging and Physiologically-Based Kinetic Modelling to Predict Hepatic Transporter Mediated Drug–Drug Interactions in Rats

Pharmaceutics, 2023
Gadoxetate, a magnetic resonance imaging (MRI) contrast agent, is a substrate of organic-anion-transporting polypeptide 1B1 and multidrug resistance-associated protein 2.
Nicola Melillo, Daniel Scotcher, J. Gerry Kenna, Claudia Green, Catherine D. G. Hines, Iina Laitinen, Paul D. Hockings, Kayode Ogungbenro, Ebony R. Gunwhy, Steven Sourbron, John C. Waterton, Gunnar Schuetz, Aleksandra Galetin   +12 more
doaj   +1 more source

Comprehensive phenotyping revealed transient startle response reduction and histopathological gadolinium localization to perineuronal nets after gadodiamide administration in rats

Scientific Reports, 2020
Gadolinium based contrast agents (GBCAs) are widely used in clinical MRI since the mid-1980s. Recently, concerns have been raised that trace amounts of Gadolinium (Gd), detected in brains even long time after GBCA application, may cause yet unrecognized ...
Johanna Habermeyer, Janina Boyken, Julia Harrer, Fabio Canneva, Veronika Ratz, Sandra Moceri, Jakob Admard, Nicolas Casadei, Gregor Jost, Tobias Bäuerle, Thomas Frenzel, Christoph Schmitz, Gunnar Schütz, Hubertus Pietsch, Stephan von Hörsten   +14 more
doaj   +1 more source

Korean Clinical Practice Guidelines for Adverse Reactions to Intravenous Iodinate and MRI-Gadolinium Contrast Agents: Revised Clinical Consensus and Recommendations (3rd Edition, 2022)

대한영상의학회지, 2022
The Korean Society of Radiology and Medical Guidelines Committee amended the existing 2016 guidelines to publish the “Korean Clinical Practice Guidelines for Adverse Reactions to Iodide Contrast for Injection and Gadolinium Contrast for MRI: The ...
Se Won Oh, So Young Park, Hwan Seok Yong, Young Hun Choi, Min Jae Cha, Tae Bum Kim, Ji Hyang Lee, Sae Hoon Kim, Jae Hyun Lee, Gyu Young Hur, Jae Yeon Hwang, Sejoong Kim, Hyo Sang Kim, Ji Young Ryu, Miyoung Choi, Chi-Hoon Choi   +15 more
doaj   +1 more source

Hypersensitivity Reactions to Iodinated Contrast Media

Biomedicines, 2022
At present, iodinated contrast media (ICM) are mostly non-ionic, have low osmolality, and are safe. Even if adverse drug reactions (ADRs) occur, most are chemo-toxic symptoms and require only observation or H1 antihistamines. However, rare, unpredictable,
Tsu-Man Chiu, Sung-Yu Chu
doaj   +1 more source