Results 21 to 30 of about 40,317 (298)

Preservative Approach to Study Encased Archaeological Artefacts [PDF]

open access: yes, 2014
International audienceWe propose a workflow based on a combination of computed tomography, 3D images and 3D printing to analyse different archaeological material dating from the Iron Age, a weight axis, a helical piece, and a fibula.
Arnaldi, Bruno   +4 more
core   +4 more sources

Diagnostic Performance of Quadruple Phase Multidetector Row Computed Tomography in Hepatoma: Comparison with Histopathological Diagnosis

open access: yesJournal of the Dow University of Health Sciences, 2019
Objective: To determine diagnostic accuracy of quadruple phase helical computed tomography scan in detection of hepatocellular carcinoma in individuals with hepatitis B and C, keeping histopathology as the gold standard.
Saadia Sarwar Soomro   +5 more
doaj   +1 more source

Helical computed tomography of the normal thoracic outlet [PDF]

open access: yesJournal of Vascular Surgery, 1997
This study was performed to determine the detailed anatomy of the thoracic outlet in normal subjects using helical computed tomography (CT), with particular attention to vascular compression with arm movement.Ten volunteers underwent detailed clinical evaluation and helical CT scanning of the upper thorax and neck with the arm in a neutral position and
Matsumura, Jon S.   +5 more
openaire   +2 more sources

A novel ultrafast-low-dose computed tomography protocol allows concomitant coronary artery evaluation and lung cancer screening [PDF]

open access: yes, 2018
BACKGROUND:Cardiac computed tomography (CT) is often performed in patients who are at high risk for lung cancer in whom screening is currently recommended.
Bandiera, A   +10 more
core   +1 more source

Optimization of helical acquisition parameters to preserve uniformity of mouse whole body using multipinhole collimator in single-photon emission computed tomography

open access: yesResults in Physics, 2016
Focusing on whole-body uniformity in small-animal single-photon emission computed tomography (SPECT), we examined the optimal helical acquisition parameters using five-pinhole collimators for mouse imaging.
Naoyuki Ukon   +5 more
doaj   +1 more source

Four-Dimensional Cardiac Image by Helical Computed Tomography [PDF]

open access: yesCirculation, 1999
Ultrasound and MRI are useful in assessing wall motion and systolic thickening with 2D images. Volumetric data of the helical CT provide frozen 3D images. We sought to determine whether helical CT could assess left ventricular wall motion with 3D animation.
Y, Koyama   +8 more
openaire   +2 more sources

Valence-programmable nanoparticle architectures. [PDF]

open access: yes, 2020
Nanoparticle-based clusters permit the harvesting of collective and emergent properties, with applications ranging from optics and sensing to information processing and catalysis.
Gang, Oleg   +6 more
core  

MRI of the lung (3/3)-current applications and future perspectives [PDF]

open access: yes, 2011
BACKGROUND: MRI of the lung is recommended in a number of clinical indications. Having a non-radiation alternative is particularly attractive in children and young subjects, or pregnant women.
A Hebestreit   +96 more
core   +1 more source

Fused Analytical and Iterative Reconstruction (AIR) via modified proximal forward-backward splitting: a FDK-based iterative image reconstruction example for CBCT

open access: yes, 2016
This work is to develop a general framework, namely analytical iterative reconstruction (AIR) method, to incorporate analytical reconstruction (AR) method into iterative reconstruction (IR) method, for enhanced CT image quality and reconstruction ...
Gao, Hao
core   +1 more source

Accuracy of Patient-Specific Organ Dose Estimates Obtained Using an Automated Image Segmentation Algorithm [PDF]

open access: yes, 2016
The overall goal of this work is to develop a rapid, accurate, and automated software tool to estimate patient-specific organ doses from computed tomography (CT) scans using simulations to generate dose maps combined with automated segmentation ...
Coradi, Thomas   +4 more
core   +2 more sources

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