Results 61 to 70 of about 136,892 (360)

Fundamentals of cone beam computed tomography for a prosthodontist

The Journal of Indian Prosthodontic Society, 2015
Cone beam computed tomography (CBCT, also referred to as C-arm computed tomography [CT], cone beam volume CT, or flat panel CT) is a medical imaging technique of X-ray CT where the X-rays are divergent, forming a cone.[1] CBCT systems have been designed for imaging hard tissues of the maxillofacial region.
George Puthenpurayil John, Tatu Elenjickal Joy, Justin Mathew, Vinod R B Kumar   +3 more
openaire   +4 more sources

Assessment of Radiodensity at Mandibular Periapical Bone Sites using Three-Dimensional Cone-Beam Computed Tomography

eJournal of Oral Maxillofacial Research, 2023
Objectives: The aims of this retrospective study were to objectively assess bone density values obtained by cone-beam computed tomography and to map the periapical and inter-radicular regions of the mandibular bone.
Samir Goyushov, Neset Volkan Asar, Tolga Fikret Tözüm   +2 more
doaj   +1 more source

Comparison of Online 6 Degree-of-Freedom Image Registration of Varian TrueBeam Cone-Beam CT and BrainLab ExacTrac X-Ray for Intracranial Radiosurgery. [PDF]

, 2017
PURPOSE: The study was aimed to compare online 6 degree-of-freedom image registrations of TrueBeam cone-beam computed tomography and BrainLab ExacTrac X-ray imaging systems for intracranial radiosurgery.
Andrews, David W., Dicker, Adam, MD, PhD, Li, Jun, Lu, Bo, Lui, Haisong, Shi, Wenyin, Werner-Wasik, Maria, Yu, Yan   +7 more
core   +1 more source

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

Removal of a migrated acupuncture needle from the cervical spinal canal with removal confirmation by cone-beam computed tomography in a hybrid operating room

Trauma Case Reports, 2023
Background: Acupuncture has become one of the most popular alternative medical treatments in the world. However, if the needle is inserted incorrectly into the body, various adverse events can occur and, in such cases, the needle should be removed ...
Ichiro Kawamura, Hiroyuki Tominaga, Hiroto Tokumoto, Daisuke Sakuma, Masato Sanada, Takuma Ogura, Noboru Taniguchi   +6 more
doaj   +1 more source

Structurally Colored Physically Unclonable Functions with Ultra‐Rich and Stable Encoding Capacity

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
This study reports a design strategy for generating bright‐field resolvable physically unclonable functions with extremely rich encoding capacity coupled with outstanding thermal and chemical stability. The optical response emerges from thickness‐dependent structural color formation in ZnO features, which are fabricated by physical vapor deposition ...
Abidin Esidir, Miaoning Ren, Sami Pekdemir, Mustafa Kalay, Nilgun Kayaci, Nail Gunaltay, Hakan Usta, Xian Huang, Mustafa Serdar Onses   +8 more
wiley   +1 more source

Comparison of the accuracy of voxel based registration and surface based registration for 3D assessment of surgical change following orthognathic surgery [PDF]

, 2014
Purpose: Superimposition of two dimensional preoperative and postoperative facial images, including radiographs and photographs, are used to evaluate the surgical changes after orthognathic surgery.
Almukhtar, Anas, Ayoub, Ashraf, Ju, Xiangyang, Khambay, Balvinder, McDonald, James   +4 more
core   +2 more sources

New evolution of cone-beam computed tomography in dentistry: Combining digital technologies

Imaging Science in Dentistry, 2019
Panoramic radiographs and computed tomography (CT) play a paramount role in the accurate diagnosis, treatment planning, and prognostic evaluation of various complex dental pathologies. The advent of cone-beam computed tomography (CBCT) has revolutionized
Supreet Jain, Kartik Choudhary, Ravleen Nagi, Stuti Shukla, Navneet Kaur, D. Grover   +5 more
semanticscholar   +1 more source

Optimization for customized trajectories in cone beam computed tomography

Medical Physics (Lancaster), 2020
Purpose We developed a target‐based cone beam computed tomography (CBCT) imaging framework for optimizing an unconstrained three dimensional (3D) source‐detector trajectory by incorporating prior image information. Our main aim is to enable a CBCT system
S. Hatamikia, A. Biguri, G. Kronreif, J. Kettenbach, Tom Russ, H. Furtado, L. K. Shiyam Sundar, M. Buschmann, E. Unger, M. Figl, D. Georg, W. Birkfellner   +11 more
semanticscholar   +1 more source

Radiological protection in computed tomography and cone beam computed tomography [PDF]

Annals of the ICRP, 2015
The International Commission on Radiological Protection (ICRP) has sustained interest in radiological protection in computed tomography (CT), and ICRP Publications 87 and 102 focused on the management of patient doses in CT and multi-detector CT (MDCT) respectively.
openaire   +3 more sources