Results 351 to 360 of about 6,300,829 (408)

Breast Phantoms for Microwave Imaging

IEEE Antennas and Wireless Propagation Letters, 2014
Herein, we study the dielectric properties of various mixtures susceptible to be used in manufacturing of reference inhomogeneous breast phantoms dedicated to the experimental validation of microwave breast imaging systems in the 0.5-6-GHz frequency range.
Joachimowicz, Nadine, Conessa, Christophe, Henriksson, Tommy, Duchêne, Bernard   +3 more
openaire   +5 more sources

Reference phantoms for microwave imaging

2017 11th European Conference on Antennas and Propagation (EUCAP), 2017
Microwave imaging offers an alternative modality for breast cancer screening and for the diagnosis of cerebrovascular accidents. Before clinical application, the performances of microwave imaging systems have to be assessed on anatomically detailed anthropomorphic phantoms.
Joachimowicz, Nadine, Duchêne, Bernard, Conessa, Christophe, Meyer, Olivier   +3 more
openaire   +2 more sources

Robustness and Reproducibility of Radiomics in Magnetic Resonance Imaging: A Phantom Study

Investigative Radiology, 2019
Objectives The aim of this study was to investigate the robustness and reproducibility of radiomic features in different magnetic resonance imaging sequences.
B. Baessler, K. Weiss, D. Pinto dos Santos   +2 more
semanticscholar   +1 more source

Imaging CDMAM phantom with tomosynthesis

SPIE Proceedings, 2008
We studied the use of the mammography contrast detail phantom (CDMAM) with tomosynthesis to evaluate the performance of our system as well as to explore the application of CDMAM in 3D breast imaging. The system was Hologic's 1st generation tomosynthesis machine.
Zhenxue Jing, Baorui Ren, Chris Ruth, Andrew P. Smith   +3 more
openaire   +2 more sources

A multimodality vascular imaging phantom of an abdominal aortic aneurysm with a visible thrombus.

Medical Physics (Lancaster), 2013
PURPOSE With the continuous development of new stent grafts and implantation techniques, it has now become technically feasible to treat abdominal aortic aneurysms (AAA) with challenging anatomy using endovascular repair with standard, fenestrated, or ...
L. Allard, G. Soulez, Boris Chayer, Z. Qin, D. Roy, G. Cloutier   +5 more
semanticscholar   +1 more source

Anisotropic phantoms in Magnetic Resonance Imaging

2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2015
Even though Magnetic Resonance Imaging (MRI) gives possibility to obtain qualitatively very good images, most quantitative results obtained by means of MRI are biased with high dependence on particular hardware parameters, imaging sequence used, and properties of analysed sample.
Krzysztof Klodowski, Artur Krzyżak, Zbigniew Raszewski   +2 more
openaire   +3 more sources

A real vessel phantom for imaging experimentation

Medical Physics, 1997
Vascular phantoms are used to evaluate imaging techniques such as ultrasound (US), CT, and angiography. They are expected to mimic the vasculature, surrounding tissue, and blood, and therefore must meet specific requirements on the mimicking materials, with respect to x‐ray attenuation and acoustic properties (velocity, attenuation).
Aaron Fenster, Aaron Fenster, Aaron Fenster, David W. Holdsworth, David W. Holdsworth, David W. Holdsworth, W.J. Dabrowski, Joy Dunmore-Buyze, Joy Dunmore-Buyze, Richard N. Rankin, Richard N. Rankin   +10 more
openaire   +3 more sources

Development of a dynamic flow imaging phantom for dynamic contrast-enhanced CT.

Medical Physics (Lancaster), 2011
PURPOSE Dynamic contrast enhanced CT (DCE-CT) studies with modeling of blood flow and tissue perfusion are becoming more prevalent in the clinic, with advances in wide volume CT scanners allowing the imaging of an entire organ with sub-second image ...
B. Driscoll, H. Keller, C. Coolens
semanticscholar   +1 more source

Increasing the utility of the mammographic phantom image.

Radiology, 1996
To increase the utility of the monthly accreditation mammographic phantom image, the authors added a light sensitometric strip on the same film. The optical densities of the steps on the sensitometric strip with values nearest those of the phantom background and disk were measured, and these optical densities and the density difference were recorded ...
Stephen Rudin, Daniel R. Bednarek
openaire   +3 more sources

Reducing metallic artifacts in postoperative spinal imaging: usefulness of IDEAL contrast-enhanced T1- and T2-weighted MR imaging--phantom and clinical studies.

Radiology, 2011
PURPOSE To prospectively compare the effectiveness of iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) T2-weighted and contrast material-enhanced T1-weighted magnetic resonance (MR) imaging with that of a ...
J. Cha, W. Jin, Min Hee Lee, Dong Hoon Kim, Jai-Soung Park, W. Shin, B. Yi   +6 more
semanticscholar   +1 more source