Results 31 to 40 of about 71,212 (333)

Novel nano‐hydroxyapatite coating of additively manufactured three‐dimensional porous implants improves bone ingrowth and initial fixation

open access: yesJournal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 111, Issue 2, Page 453-462, February 2023., 2023
Abstract Electron beam melting (EBM) has been used to fabricate three‐dimensional (3D) porous Ti‐6Al‐4V surfaces for acetabular cups in total hip arthroplasty. However, there are radiographic concerns regarding poor implant fixation and bone ingrowth around electron beam melted (EBMed) 3D porous cups.
Ryota Watanabe   +8 more
wiley   +1 more source

Comparison of the diagnostic accuracy of cone beam computed tomography and three intraoral radiographic systems in the diagnosis of carious lesions in vitro.

open access: yesJournal of Oral Research, 2020
Objective: The objective of the study was to compare the diagnostic accuracy of cone beam computed tomography and three intraoral radiographic systems in the detection of in vitro caries lesions.
Jorge A. Beltrán   +2 more
doaj   +1 more source

X-ray Dissectography Enables Stereotography to Improve Diagnostic Performance [PDF]

open access: yesarXiv, 2021
X-ray imaging is the most popular medical imaging technology. While x-ray radiography is rather cost-effective, tissue structures are superimposed along the x-ray paths. On the other hand, computed tomography (CT) reconstructs internal structures but CT increases radiation dose, is complicated and expensive.
arxiv  

A High Position Resolution X-ray Detector: an Edge on Illuminated Capillary Plate Combined with a Gas Amplification Structure [PDF]

open access: yesIEEE Trans.Nucl.Sci. 53 (2006) 554-561, 2004
We have developed and successfully tested a prototype of a new type of high position resolution hybrid X-ray detector. It contains a thin wall lead glass capillary plate converter of X-rays combined with a microgap parallel-plate avalanche chamber filled with gas at 1 atm. The operation of these converters was studied in a wide range of X-ray energies (
arxiv   +1 more source

Multi-Energy Radiography Against Terrorism. Theory and Experiments [PDF]

open access: yes, 2005
Multi-energy radiography is a new direction in non-destructive testing. Its specific feature is separate detection of penetrating radiation in several energy channels. Multi-energy radiography allows quantitative determination of the atomic composition of objects. This is its principal advantage over conventional radiography. In particular, dual-energy
arxiv   +1 more source

Dose audit for patients undergoing two common radiography examinations with digital radiology systems

open access: yesDiagnostic and Interventional Radiology, 2014
PURPOSEWe aimed to determine the radiation doses delivered to patients undergoing general examinations using computed or digital radiography systems in Turkey.
Tolga İnal,, Gökçe Ataç
doaj   +1 more source

Measurement of CT radiation beam width with a pencil ionization chamber and radiopaque mask

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study compares fan beam CT scanner radiation beam widths measured with a pencil ionization chamber‐radiopaque mask technique with commonly used film and computed radiography (CR) measurements. Methods For a given fan beam CT scanner x‐ray beam, the ionization chamber‐mask technique determines the radiation beam width by exposing a
Rani Al‐Senan   +2 more
wiley   +1 more source

Positron emission tomography: Evolving modalities, radiopharmaceuticals and professional collaboration

open access: yesJournal of Medical Radiation Sciences, Volume 69, Issue 4, Page 415-418, December 2022., 2022
PET has experienced exponential growth over the last few decades in terms of innovative technologies and novel radiopharmaceuticals. This has fostered increasing collaboration between radiographers and nuclear medicine technologists. Abstract Positron emission tomography (PET) as an imaging modality has undergone considerable innovation over the past ...
Sally L. Ayesa, Andrew Murphy
wiley   +1 more source

A Comparative Study on Diagnostic Accuracy of Colour Coded Digital Images, Direct Digital Images and Conventional Radiographs for Periapical Lesions – An In Vitro Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2014
Objectives: The identification and radiographic interpretation of periapical bone lesions is important for accurate diagnosis and treatment. The present study was undertaken to study the feasibility and diagnostic accuracy of colour coded digital ...
Abhishek Ranjan Pati   +7 more
doaj   +1 more source

Ontology‐Based Data Acquisition, Refinement, and Utilization in the Development of a Multilayer Ferrite Inductor

open access: yesAdvanced Engineering Materials, EarlyView.
Multilayer ferrite inductor prototypes are fabricated by cofiring metallized tapes of NiCuZn ferrite and glass‐ceramic composite. Prerequisites for a predictive component simulation are discussed. An automated data‐pipeline stores and semantically links the experimental data acquired in the study according to a domain ontology.
Björn Mieller   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy