Results 81 to 90 of about 1,057,589 (301)

4DMRI-based investigation on the interplay effect for pencil beam scanning proton therapy of pancreatic cancer patients

Radiation Oncology, 2019
Background Time-resolved volumetric magnetic resonance imaging (4DMRI) offers the potential to analyze 3D motion with high soft-tissue contrast without additional imaging dose.
Kai Dolde, Ye Zhang, Naved Chaudhri, Christian Dávid, Marc Kachelrieß, Antony John Lomax, Patrick Naumann, Nami Saito, Damien Charles Weber, Asja Pfaffenberger   +9 more
doaj   +1 more source

Translation: About one scheme of tomography [PDF]

arXiv, 2020
The translation of an early (1958), Russian article by B. I. Korenblum, S. I. Tetelbaum and A. A. Tyutin on the development of x-ray computed tomography is provided. A new method to acquire cross-sectional x-ray images is studied which is based on processing information contained in an x-ray sinogram recorded at varying angles of an object.
arxiv  

The effect of kV imaging dose on PTV and OAR planning constraints in lung SBRT using stereoscopic/monoscopic real‐time tumor‐monitoring system

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Quantify the impact of additional imaging doses on clinical dose constraints during lung stereotactic body radiotherapy (SBRT) treatment utilizing stereoscopic/monoscopic real‐time tumor monitoring. Materials and Methods Thirty lung SBRT patients treated with the volumetric arc therapy technique were randomly selected from the ...
Ruwan Abeywardhana, Mike Sattarivand
wiley   +1 more source

Applications of X-Ray Computed Tomography in Particulate Systems

KONA Powder and Particle Journal, 2014
X-ray computed tomography (CT) is an ideal technique for investigating the internal structure of multiphase materials in a noninvasive and nondestructive manner.
C. L. Lin, J. D. Miller, A. Cortes
doaj   +1 more source

X-ray Computed Tomography Inspection of Novel Ceramic Matrix Composites

e-Journal of Nondestructive Testing, 2023
Novel Ceramic Matrix Composites (CMCs) offer the promise of more highly performing structures, especially in aerospace applications, due to their excellent mechanical properties at elevated temperatures with respect to their density and their corrosion ...
Nick Brierley, Karin Chrzan, Olaf Günnewig, Fiona Kessel, Daniel Backe   +4 more
doaj   +1 more source

Stereo X-ray Tomography [PDF]

arXiv, 2023
X-ray tomography is a powerful volumetric imaging technique, but detailed three dimensional (3D) imaging requires the acquisition of a large number of individual X-ray images, which is time consuming. For applications where spatial information needs to be collected quickly, for example, when studying dynamic processes, standard X-ray tomography is ...
arxiv  

Combining tomographic imaging and DEM simulations to investigate the structure of experimental sphere packings [PDF]

, 2010
We combine advanced image reconstruction techniques from computed X-ray micro tomography (XCT) with state-of-the-art discrete element method simulations (DEM) to study granular materials. This "virtual-laboratory" platform allows us to access quantities,
Aste, Aste, Aste, Aste, Aste, Baram, Bernal, Brendel, Brilliantov, Brujić, Campbell, Cates, Cui, Cundall, Delaney, Delaney, Delaney, Delaney, Delaney, Donev, Donev, Gary W. Delaney, Goldenberg, Hutzler, Jaeger, Jerkins, Kadanoff, Kamien, Majmudar, Majmudar, Makse, Makse, Mason, Mason, Matuttis, Mehta, Nicodemi, O'Hern, Ojha, Rivier, Rycroft, Sakellariou, Schafer, Schröter, Scott, Sederman, Seidler, Silbert, Silbert, Smith, Song, Steinhardt, T. Di Matteo, Tomaso Aste, Torquato, Tsukahara, Welker, Wouterse   +57 more
core   +2 more sources

Effects of cardiac motion on dose distribution during stereotactic arrhythmia radioablation treatment: A simulation and phantom study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Cardiac motion may degrade dose distribution during stereotactic arrhythmia radioablation using the CyberKnife system, a robotic radiosurgery system. This study evaluated the dose distribution changes using a self‐made cardiac dynamic platform that mimics cardiac motion. Methods The cardiac dynamic platform was operated with amplitudes
Takayuki Miyachi, Takeshi Kamomae, Fumitaka Kawabata, Kuniyasu Okudaira, Mariko Kawamura, Shunichi Ishihara, Shinji Naganawa   +6 more
wiley   +1 more source

Characterization of geomaterials with X-ray computed tomography (X-ray CT) [PDF]

, 2008
The application of 3-dimensional volumetric imaging using non destructive evaluation procedures opens doors in researching geomaterials, allowing study of internal characteristics.
Halverson, Clinton
core   +3 more sources

X-ray computed tomography of polymer composites

Composites Science and Technology, 2018
Abstract The use of X-ray computed tomography (CT), exploiting both synchrotron and laboratory sources, has grown significantly over the last decade, driven primarily by improvements in spatial resolution, reduction in acquisition time and the increasing availability of laboratory X-ray CT systems.
Garcea, S.C., Wang, Y., Withers, P.J.
openaire   +2 more sources