Results 11 to 20 of about 234,333 (217)

X-ray computed tomography in life sciences

BMC Biology, 2020
Recent developments within micro-computed tomography (μCT) imaging have combined to extend our capacity to image tissue in three (3D) and four (4D) dimensions at micron and sub-micron spatial resolutions, opening the way for virtual histology, live cell ...
Shelley D. Rawson, Jekaterina Maksimcuka, Philip J. Withers, Sarah H. Cartmell   +3 more
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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
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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
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Visualization Ability of Phase-Contrast Synchrotron-Based X-Ray Imaging Using an X-Ray Interferometer in Soft Tissue Tumors

Technology in Cancer Research & Treatment, 2021
Phase-contrast synchrotron-based X-ray imaging using an X-ray interferometer provides high sensitivity and high spatial resolution, and it has the ability to depict the fine morphological structures of biological soft tissues, including tumors.
Thet-Thet Lwin MD, PhD, Akio Yoneyama PhD, Hiroko Maruyama PhD, Tohoru Takeda MD, PhD   +3 more
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MicroCT reveals domesticated rice (Oryza sativa) within pottery sherds from early Neolithic sites (4150–3265 cal BP) in Southeast Asia

Scientific Reports, 2017
Rice (Oryza sativa) was domesticated in the Yangtze Valley region at least 6000–8000 years ago, yet the timing of dispersal of domesticated rice to Southeast Asia is contentious.
Aleese Barron, Michael Turner, Levi Beeching, Peter Bellwood, Philip Piper, Elle Grono, Rebecca Jones, Marc Oxenham, Nguyen Khanh Trung Kien, Tim Senden, Tim Denham   +10 more
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Analyses non destructives par tomographie à rayons X

Les Nouvelles de l’Archéologie, 2020
X-ray imaging techniques benefit from developments in physics, mathematics, and computer science, and provide analytical tools to study 3D internal structures of a wide range of objects.
Patricia Wils
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Applications of X-ray computed tomography in textile field

Fushe yanjiu yu fushe gongyi xuebao, 2022
Traditional optical imaging technique used as an analysis method for microstructure can only observe surface and can't achieve 3D characterization of the material interior, which greatly limits its application in textile field.
GUO Weina, GAO Yantao, HU Wenfeng, WU Xiangji   +3 more
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Quantitative Mass Density Image Reconstructed from the Complex X-Ray Refractive Index. [PDF]

PLoS ONE, 2015
We demonstrate a new analytical X-ray computed tomography technique for visualizing and quantifying the mass density of materials comprised of low atomic number elements with unknown atomic ratios.
Taihei Mukaide, Atsuo Iida, Masatoshi Watanabe, Kazuhiro Takada, Takashi Noma   +4 more
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Effects of X-Ray Dose On Rhizosphere Studies Using X-Ray Computed Tomography.

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
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X-ray Fluorescence Computed Tomography (XFCT) Imaging with a Superfine Pencil Beam X-ray Source

Photonics, 2021
X-ray fluorescence computed tomography (XFCT) is a molecular imaging technique that can be used to sense different elements or nanoparticle (NP) agents inside deep samples or tissues. However, XFCT has not been a popular molecular imaging tool because it
Ignacio O. Romero, Yile Fang, Michael Lun, Changqing Li   +3 more
doaj   +1 more source