Results 11 to 20 of about 224,578 (344)

X-ray-Computed Tomography Contrast Agents [PDF]

Chemical Reviews, 2012
X-ray computed tomography (CT) is a well-established tissue imaging technique employed in a variety of research and clinical settings.1 Specifically, CT is a non-invasive clinical diagnostic tool that allows for 3D visual reconstruction and segmentation of tissues of interest. High resolution CT systems can be used to perform non-destructive 3D imaging
Hrvoje, Lusic, Mark W, Grinstaff
openaire   +3 more sources

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
doaj   +2 more sources

Review of high-speed imaging with lab-based x-ray computed tomography

Measurement science and technology, 2021
X-ray computed tomography (CT) is frequently used for non-destructive testing with many applications in a wide range of scientific research areas. The difference in imaging speeds between synchrotron and lab-based scanning has reduced as the capabilities
E. A. Zwanenburg, Mark A Williams, J. Warnett   +2 more
semanticscholar   +1 more source

Convolutional Neural Network Based Metal Artifact Reduction in X-Ray Computed Tomography [PDF]

IEEE Transactions on Medical Imaging, 2017
In the presence of metal implants, metal artifacts are introduced to x-ray computed tomography CT images. Although a large number of metal artifact reduction (MAR) methods have been proposed in the past decades, MAR is still one of the major problems in ...
Yanbo Zhang, Hengyong Yu
semanticscholar   +1 more source

Charting the course towards dimensional measurement traceability by x-ray computed tomography

Measurement science and technology, 2021
Long synonymous with medical imaging, x-ray computed tomography (CT) is proving its worth in industrial applications such as material characterization, defect analysis, and dimensional inspection e.g. of manufactured components.
M. Ferrucci, E. Ametova
semanticscholar   +1 more source

Potential of ultra-high-resolution photon-counting CT of bone metastases: initial experiences in breast cancer patients

npj Breast Cancer, 2021
Conventional CT scanners use energy-integrating detectors (EIDs). Photon-counting detector (PCD) computed tomography (CT) utilizes a CT detector technology based on smaller detector pixels capable of counting single photons and in addition discriminating
E. Wehrse, S. Sawall, L. Klein, P. Glemser, S. Delorme, H.-P. Schlemmer, M. Kachelrieß, M. Uhrig, C. H. Ziener, L. T. Rotkopf   +9 more
doaj   +1 more source

ROOT PHENOTYPING FROM X-RAY COMPUTED TOMOGRAPHY: SKELETON EXTRACTION [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
Breakthrough imaging technologies are a potential solution to the plant phenotyping bottleneck in marker-assisted breeding and genetic mapping. X-Ray CT (computed tomography) technology is able to acquire the digital twin of root system architecture (RSA)
M. Herrero-Huerta, V. Meline, A. S. Iyer-Pascuzzi, A. M. Souza, M. R. Tuinstra, Y. Yang   +5 more
doaj   +1 more source

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

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

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