Results 31 to 40 of about 1,085,909 (349)

X‐ray Stain Localization with Near‐Field Ptychographic Computed Tomography

Advanced Science, 2022
Although X‐ray contrast agents offer specific characteristics in terms of targeting and attenuation, their accumulation in the tissue on a cellular level is usually not known and difficult to access, as it requires high resolution and sensitivity.
Kirsten Taphorn, Madleen Busse, Johannes Brantl, Benedikt Günther, Ana Diaz, Mirko Holler, Martin Dierolf, Doris Mayr, Franz Pfeiffer, Julia Herzen   +9 more
doaj   +1 more source

Effects of X-Ray Dose On Rhizosphere Studies Using X-Ray Computed Tomography. [PDF]

PLoS ONE, 2013
X-ray Computed Tomography (CT) is a non-destructive imaging technique originally designed for diagnostic medicine, which was adopted for rhizosphere and soil science applications in the early 1980s.
Susan Zappala, Jonathan R Helliwell, Saoirse R Tracy, Stefan Mairhofer, Craig J Sturrock, Tony Pridmore, Malcolm Bennett, Sacha J Mooney   +7 more
doaj   +1 more source

Algorithms for joint activity–attenuation estimation from positron emission tomography scatter

EJNMMI Physics, 2019
Background Attenuation correction in positron emission tomography remains challenging in the absence of measured transmission data. Scattered emission data may contribute missing information, but quantitative scatter-to-attenuation (S2A) reconstruction ...
Yannick Berker, Volkmar Schulz, Joel S. Karp   +2 more
doaj   +1 more source

X-ray computed tomography of the heart [PDF]

British Medical Bulletin, 2009
Cardiac imaging is an emerging application of multidetector computed tomography (MDCT). This review summarizes the current capabilities, possible applications, limitations and developments of cardiac CT.Relevant publications in peer reviewed literature and national and international guidelines are used to discuss important issues in cardiac CT imaging ...
Mark K. Duncan, Nevin T. Wijesekera, Simon P.G. Padley   +2 more
openaire   +3 more sources

X-ray computed tomography [PDF]

Physics Education, 2001
X-ray computed tomography (CT) is a medical imaging technique that produces images of transaxial planes through the human body. When compared with a conventional radiograph, which is an image of many planes superimposed on each other, a CT image exhibits significantly improved contrast although this is at the expense of reduced spatial resolution. A CT
openaire   +3 more sources

X-ray micro computed-tomography [PDF]

Current Biology, 2017
Emily Baird and Gavin Taylor describe how you can make three-dimensional models of biological samples using x-ray micro-computed tomography.
Gavin J. Taylor, Emily Baird
openaire   +2 more sources

X-ray computed tomography for additive manufacturing: a review [PDF]

, 2016
In this review, the use of x-ray computed tomography (XCT) is examined, identifying the requirement for volumetric dimensional measurements in industrial verification of additively manufactured (AM) parts.
A Thompson, Ashley S, ASTM International, Brierley N, Carmignato S, Gibson I, Henson K D, Hsieh J, Hull C W, I Maskery, Ishida N, ISO 3534–2, ISO/TC 213, Kerckhofs G, Kerckhofs G, Kiekens K, Leach R K, Lin M, Losano F, Léonard F, Mireles J, Moylan S, Nassar A, Pyka G, R K Leach, Raguvarun K, Roscoe L, Rüsenberg S, Sun W, Todorov E, Triantaphyllou A, Turner N, Van Uden S, Villarraga H   +33 more
core   +1 more source

The impact of the COVID-19 pandemic on the structure of radiation diagnostics and collective doses of the population of the Russian Federation under medical irradiation in 2020

Радиационная гигиена, 2022
Computed tomography has become the main method of early diagnostics of COVID-19 during the pandemic of the novel coronavirus infection. Based on results of computed tomography of the chest it is possible to diagnose viral pneumonia associated with COVIS ...
А. Yu. Popova, A. V. Vodovatov, I. K. Romanovich, S. A. Ryzhov, P. S. Druzhinina, R. R. Akhmatdinov   +5 more
doaj   +1 more source

Digital Light Processing of 2D Lattice Composites for Tunable Self‐Sensing and Mechanical Performance

Advanced Engineering Materials, EarlyView., 2023
The study presents the mechanical and in situ sensing performance of digital light processing‐enabled 2D lattice nanocomposites under monotonic tensile and repeated cyclic loading, and provides guidelines for the design of architectures suitable for strain sensors and smart lightweight structures.
Omar Waqas Saadi, Mohammed Ayaz Uddin, Andreas Schiffer, Shanmugam Kumar   +3 more
wiley   +1 more source

Utilizing x-ray computed tomography for heritage conservation : the case of megalosaurus bucklandii [PDF]

, 2017
Of key importance to any cultural institution is the practice of conservation, the method by which specimens at risk of severe degradation or destruction are treated to ensure that they survive into the future.
Attridge, Alex, Hay, J., Ketchum, H., Smith, M. P., Warnett, Jason M., Williams, M. A., Wilson, Paul   +6 more
core   +1 more source