Results 101 to 110 of about 69,048 (297)

Spectral Computed Tomography Based on Semi-Monochromatic Imaging

e-Journal of Nondestructive Testing
Spectral computed tomography (CT) advances conventional CT by enabling material-specific imaging. This technique leverages the energy dependence of X-ray attenuation.
Pavel Mikuláček, Marek Zemek, Pavel štarha, Lukas Malecek, Markéta Kaiser, Tomáš Zikmund, Yoshihiro Takeda, Kazuhiko Omote, Jozef Kaiser   +8 more
doaj   +1 more source

The Usefulness of Dual-Layer Spectral Computed Tomography for Myelography: A Case Report and Review of the Literature

Case Reports in Orthopedics, 2018
We describe a case of lumbar stenosis in which retrospective spectral analysis using dual-layer spectral detector computed tomography (CT) had the ability to expand the evaluable region in the spinal canal.
Yuji Iyama, Takeshi Nakaura, Ayumi Iyama, Kazuhiro Katahira, Yasuyuki Yamashita   +4 more
doaj   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

Reducing Radiation Dose in Computed Tomography Imaging of Adolescent Idiopathic Scoliosis Using Spectral Shaping Technique with Tin Filter

Tomography
Background/Objectives: Children with adolescent idiopathic scoliosis (AIS) require repeated imaging, primarily standing spine radiography, while CT may be required for surgical planning, resulting in higher radiation exposure.
Yoshiyuki Noto, Tatsuya Kuramoto, Kei Watanabe, Koichi Chida   +3 more
doaj   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Deep learning methods for virtual monoenergetic imaging from spectral CT

, 2023
International audienceSpectral photon counting computed tomography (CT) is a X-ray imaging modality that acquires energy-resolved data thanks to photon counting detectors that sort photons depending on their energy.
Peyrin, Françoise, Chappard, Christine, Ducros, Nicolas, Abascal, Juan F P J, Bussod, Suzanne, Douek, Philippe   +5 more
core   +2 more sources

Intestinal fibrosis assessment in Crohn’s disease patient using unenhanced spectral CT combined with 3D-printing technique

Insights into Imaging
Objectives To integrate multiple parameters derived from unenhanced spectral CT with 3D-printing technique to accurately evaluate intestinal lesions in patients with Crohn’s disease (CD).
Qiapeng Huang, Zhihui Chen, Ruonan Zhang, Huasong Cai, Xufeng Yang, Xiaodi Shen, Lili Huang, Xinyue Wang, Qingzhu Zheng, Mingzhe Li, Ziyin Ye, Xubin Liu, Ren Mao, Yangdi Wang, Jinjiang Lin, Zhoulei Li   +15 more
doaj   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

Advanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho, M. Naeem, T. H. C. Costa, M. S. Libório, J. C. A. Queiroz, C. B. B. Luna, R. R. M. Sousa, P. S. Vieira, E. M. Araújo   +8 more
wiley   +1 more source

Regularization of Nonlinear Decomposition of Spectral X-ray Projection Images

, 2017
International audiencePurpose: Exploiting the X-ray measurements obtained in different energy bins, spectral computed tomography (CT) has the ability to recover the 3D description of a patient in a material basis.
Sixou, B, Nicolas Ducros, Françoise Peyrin, Abascal, J,, Rit, S, PEYRIN, Françoise, Ducros, Nicolas, Simon Rit, Bruno Sixou, Juan Felipe Perez-Juste Abascal, Abascal, J, F P J   +10 more
core   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source