Results 41 to 50 of about 56,912 (284)

GPU-Based Acceleration for Interior Tomography

IEEE Access, 2014
The compressive sensing (CS) theory shows that real signals can be exactly recovered from very few samplings. Inspired by the CS theory, the interior problem in computed tomography is proved uniquely solvable by minimizing the region-of-interest's total ...
Rui Liu, Yan Luo, Hengyong Yu
doaj   +1 more source

DiffuserCam: Lensless Single-exposure 3D Imaging

, 2017
We demonstrate a compact and easy-to-build computational camera for single-shot 3D imaging. Our lensless system consists solely of a diffuser placed in front of a standard image sensor.
Antipa, Nick, Bostan, Emrah, Heckel, Reinhard, Kuo, Grace, Mildenhall, Ben, Ng, Ren, Waller, Laura   +6 more
core   +1 more source

A coupled mitral valve -- left ventricle model with fluid-structure interaction

, 2017
Understanding the interaction between the valves and walls of the heart is important in assessing and subsequently treating heart dysfunction. With advancements in cardiac imaging, nonlinear mechanics and computational techniques, it is now possible to ...
Brown, André EX, Ch'ng, Quee-Lim, Currie, Michael, Grundy, Laura J, Hokanson, Jim, Javer, Avelino, Kerr, Rex, Lee, Chee Wai, Li, Chris, Li, Kezhi, Schafer, William R, Yemini, Eviatar   +11 more
core   +3 more sources

Four-dimensional Cone Beam CT Reconstruction and Enhancement using a Temporal Non-Local Means Method

, 2012
Four-dimensional Cone Beam Computed Tomography (4D-CBCT) has been developed to provide respiratory phase resolved volumetric imaging in image guided radiation therapy (IGRT).
Ahmad, Bergner, Buades, Combettes, Coupe, Dietrich, Feldkamp, Gilboa, Golub, Gu, Gu, Gu, Gu, Hale, Herk, Hestenes, Hissoiny, Jan-Jakob Sonke, Jia, Jia, Jia, Jia, Jia, Kriminski, Leng, Leng, Li, Li, Li, Lou, Lu, Lu, Men, Men, Samant, Segars, Sharp, Siddon, Sonke, Steve B. Jiang, Tian, Xu, Xun Jia, Yifei Lou, Zhang, Zhen Tian, Zijp   +46 more
core   +1 more source

EchoFusion: Tracking and Reconstruction of Objects in 4D Freehand Ultrasound Imaging without External Trackers [PDF]

, 2018
Ultrasound (US) is the most widely used fetal imaging technique. However, US images have limited capture range, and suffer from view dependent artefacts such as acoustic shadows. Compounding of overlapping 3D US acquisitions into a high-resolution volume
Gomez, Alberto, Grzech, Daniel, Gupta, Chandni, Hou, Benjamin, Kainz, Bernhard, Khanal, Bishesh, Matthew, Jacqueline, McDonagh, Steven, Rueckert, Daniel, Schnabel, Julia A., Skelton, Emily, Toussaint, Nicolas, Wright, Robert, Zimmer, Veronika   +13 more
core   +2 more sources

Association of Corticospinal Tract Asymmetry With Ambulatory Ability After Intracerebral Hemorrhage

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Ambulatory ability after intracerebral hemorrhage (ICH) is important to patients. We tested whether asymmetry between ipsi‐ and contra‐lesional corticospinal tracts (CSTs) assessed by diffusion tensor imaging (DTI) is associated with post‐ICH ambulation.
Yasmin N. Aziz, Carl D. Langefeld, Mary E. Comeau, Miranda C. Marion, Tyler P. Behymer, Lee A. Gilkerson, Padmini Sekar, Weihong Yuan, Vivek Khandwala, Brady J. Williamson, Thomas Maloney, Achala Vagal, Pierce Boyne, Kari Dunning, Matthew L. Flaherty, Steven J. Kittner, Prachi Mehndiratta, Gunjan Y. Parikh, Michael L. James, David Roh, Fernando D. Testai, Farhaan S. Vahidy, James Thornton, Ranjit Bagga, Daniel Woo, Stacie L. Demel   +25 more
wiley   +1 more source

Neural Vessel Segmentation and Gaussian Splatting for 3D Reconstruction of Cerebral Angiography

AI
Cerebrovascular diseases are a leading cause of global mortality, underscoring the need for objective and quantitative 3D visualization of cerebral vasculature from dynamic imaging modalities.
Oleh Kryvoshei, Patrik Kamencay, Ladislav Polak   +2 more
doaj   +1 more source

Low-Cost Method to Volumetric Computed Aided Planning of Posttraumatic Sequelae in Orbito-Zygomatic Reconstruction: A Case Report

Craniomaxillofacial Research & Innovation, 2022
Study design The present case report demonstrated a reproducible and low-cost method to planning orbito-zygomatic reconstruction applied to a sequela of facial trauma. Aim This study aims to purpose a method to surgical planning orbito-zygomatic reconstruction and demonstrate it in a clinical report.
Marcelo Marotta Araújo, Mário Francisco Real Gabrielli, Valfrido Antonio Pereira-Filho, Fábio Ricardo Loureiro Sato, Paulo Roberto De Alencar Bártholo, Pedro Henrique De Azambuja Carvalho   +5 more
openaire   +2 more sources

Unraveling the Effect of Tramp Elements on Phase Transformations in Steels by Combining CALPHAD Modeling and Experiments

Advanced Engineering Materials, EarlyView.
This study investigates how tramp elements from increased scrap usage influence phase transformations in low‐alloyed steel. Combining dilatometry and microscopy reveal that tramp elements delay transformations, reduce critical cooling rates and increase hardenability.
Lukas Hatzenbichler, Daniel Marian Ogris, Phillip Haslberger, Matthew Galler, Oleksandr Glushko, Ronald Schnitzer   +5 more
wiley   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source