Results 41 to 50 of about 491,746 (343)

Relaxed Linearized Algorithms for Faster X-Ray CT Image Reconstruction [PDF]

, 2015
Statistical image reconstruction (SIR) methods are studied extensively for X-ray computed tomography (CT) due to the potential of acquiring CT scans with reduced X-ray dose while maintaining image quality.
Fessler, Jeffrey A., Nien, Hung
core   +1 more source

Multi-Mounted X-Ray Computed Tomography. [PDF]

PLoS ONE, 2016
Most existing X-ray computed tomography (CT) techniques work in single-mounted mode and need to scan the inspected objects one by one. It is time-consuming and not acceptable for the inspection in a large scale.
Jian Fu, Zhenzhong Liu, Jingzheng Wang
doaj   +1 more source

Interlaced X-ray diffraction computed tomography [PDF]

, 2016
An X-ray diffraction computed tomography data-collection strategy that allows, post experiment, a choice between temporal and spatial resolution is reported.
Beale, AM, Cernik, RJ, Di Michiel, M, Jacques, SDM, Middelkoop, V, Senecal, P, Vamvakeros, A   +6 more
core   +1 more source

Switchable resolution in soft x-ray tomography of single cells. [PDF]

, 2020
The diversity of living cells, in both size and internal complexity, calls for imaging methods with adaptable spatial resolution. Soft x-ray tomography (SXT) is a three-dimensional imaging technique ideally suited to visualizing and quantifying the ...
Chao, Weilun, Chen, Jian-Hua, Ekman, Axel A, Guo, Jessica, Hammel, Michal, Larabell, Carolyn A, Le Gros, Mark A, McDermott, Gerry, Oh, Sharon, Remesh, Soumya G, Weinhardt, Venera   +10 more
core   +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 tomography methods [PDF]

, 2023
Computed tomography is the reconstruction of a cross sectional slice of, or a volume of, an object from a series of projections. Traditionally, this is an image of the X-ray attenuation coefficient, but there are now a plethora of techniques which reconstruct different types of information to form a three-dimensional (3D) image.
Cernik, Robert, King, Andrew, Ludwig, Wolfgang, Olivo, Alessandro, Withers, Philip J.   +4 more
openaire   +1 more source

High-speed X-ray ptychographic tomography

Scientific Reports, 2022
X-ray ptychography is a coherent scanning imaging technique widely used at synchrotron facilities for producing quantitative phase images beyond the resolution limit of conventional x-ray optics.
Darren Batey, Christoph Rau, Silvia Cipiccia   +2 more
doaj   +1 more source

Clinical Characteristics and Prognostic Risk Factors for Pediatric B‐Cell Lymphoblastic Lymphoma: A Multicenter Retrospective Cohort Study for China Net Childhood Lymphoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background B‐cell lymphoblastic lymphoma (B‐LBL) represents a rare variety of non‐Hodgkin lymphoma, with limited research on its biology, progression, and management. Methods A retrospective analysis was performed on the clinical characteristics of 256 patients aged ≤18 years who received treatment under the China Net Childhood Lymphoma (CNCL)‐
Zhijuan Liu, Jian Wang, Ling Jin, Yanlong Duan, Fu Li, Yueping Jia, Leping Zhang, Xiaojun Yuan, Wei Liu, Ying Liu, Ansheng Liu, Mincui Zheng, Yunpeng Dai, Lian Jiang, Lirong Sun, Xiaowen Zhai, Rong Liu, Chunju Zhou, Zifen Gao, Yonghong Zhang, Xiaomei Yang   +20 more
wiley   +1 more source

X-ray Micro-CT based characterization of rock cuttings with deep learning

Applied Computing and Geosciences
Rock cuttings from destructive boreholes are a common and cheaper source of drilling materials that can be used to determine underground geology compared to rock core samples.
Nils Olsen, Yifeng Chen, Pascal Turberg, Alexandre Moreau, Alexandre Alahi   +4 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source