Results 111 to 120 of about 665,601 (313)

Image quality and dosimetry of a dual source computed tomography scanner with special emphasis on radiation dose of lung in a chest examination

, 2011
The purpose of the current study was to evaluate the Dual Source Computed Tomography scanner in terms of Image quality and dosimetry with special emphasis of radiation dose of lung in a Chest examination.Zielsetzung der Studie war die Evaluation eines ...
Paul, Jijo
core  

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

In vivo structural analysis of subchondral trabecular bone in osteoarthritis of the hip using multi-detector row CT. [PDF]

, 2011
With developments in clinical computed tomography (CT), in vivo analysis of patients' bone microstructure has become increasingly possible. We analyzed the subchondral trabecular bone of hip osteoarthritis (OA) patients using multi-detector row CT (MDCT)
Uetani, Masataka, Osaki, M., Shindo, H., Ito, Masako, Chiba, Ko, Chiba, K., Ito, M., Osaki, Makoto, M. Uetani, K. Chiba, Uetani, M., H. Shindo, M. Ito, Shindo, Hiroyuki, M. Osaki   +14 more
core   +1 more source

FDG avid breast cancer bone metastases silent on CT and scintigraphy: a case report with radiologic-pathologic correlation

Acta Radiologica Open, 2017
Bone is the one of the most common distant metastatic sites in breast cancer. Routine initial breast cancer staging evaluation typically includes computed tomography (CT) and skeletal scintigraphy while 18F fluorodeoxyglucose (FDG) positron emission ...
Daniel Jeong, Marilyn Bui, Daniel Peterson, Jaime Montilla-Soler, Kenneth L Gage   +4 more
doaj   +1 more source

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

Advanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula, Gökhan Küçüktürk, Duran Kaya, David Grossin, Christophe Tenailleau, Benjamin Duployer, Enrique Juste, Fabrice Petit   +7 more
wiley   +1 more source

Topography characterization of additively manufactured surfaces using CT

, 2023
X‐ray computed tomography (CT) is increasingly used for evaluating parts produced by additive manufacturing (AM) in terms of geometrical and dimensional characteristics, internal defects, and surface topography.
Simone Carmignato, Filippo Zanini
core  

Research Advancement and Application Exploration of Coronary CT Angiography-derived Fractional Flow Reserve

CT Lilun yu yingyong yanjiu
Coronary computed tomography angiography-derived fractional flow reserve (CT-FFR) offers comprehensive assessment by providing both morphological and functional information from a single coronary computed tomography angiography (CCTA) scan.
Limiao ZOU, Cheng XU, Yining WANG
doaj   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

Advanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo, Shuo Qu, Shiming Gao, Xu Song   +3 more
wiley   +1 more source

A remote access CT colonography training system [PDF]

, 2007
Computed tomography colonography (CTC) is emerging as an alternative to conventional colonoscopy (CC). However CTC is not yet in widespread use due in part to the lack of suitably trained radiologists.
Luauté, Vincent
core  

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