Results 21 to 30 of about 33,291 (265)

iPads in Breast Imaging – A Phantom Study [PDF]

Geburtshilfe und Frauenheilkunde, 2014
Introduction: Modern tablet PCs as the iPad are becoming more and more integrated into medicine. The aim of this study was to evaluate the display quality of iPads regarding digital mammography. Materials and Methods: Three experienced readers compared the display quality of the iPad 2 and 3 with a dedicated 10 megapixel (MP) mammography liquid crystal
M, Hammon, P M, Schlechtweg, R, Schulz-Wendtland, M, Uder, S A, Schwab   +4 more
openaire   +2 more sources

Organosilicon phantom for photoacoustic imaging

Journal of Biomedical Optics, 2015
Photoacoustic imaging is an emerging technique. Although commercially available photoacoustic imaging systems currently exist, the technology is still in its infancy. Therefore, the design of stable phantoms is essential to achieve semiquantitative evaluation of the performance of a photoacoustic system and can help optimize the properties of contrast ...
Roberto Pini, Sandro Meucci, Sandro Meucci, Claudia Kusmic, Cecilia Masciullo, Paolo Armanetti, Nicole Di Lascio, Lucia Cavigli, Francesco Faita, Marco Cecchini, Luca Menichetti, Fulvio Ratto, Cinzia Avigo   +12 more
openaire   +5 more sources

Calibration of Spectral Imaging Devices With Oxygenation-Controlled Phantoms: Introducing a Simple Gel-Based Hemoglobin Model

Frontiers in Physics, 2019
An optical phantom model with stable oxygen saturation (StO2) and optical properties (OPs) is the key for quick and accurate calibration of spectral imaging devices.
V. N. Du Le, Myla Manser, Sunny Gurm, Ben Wagner, Joseph E. Hayward, Qiyin Fang, Qiyin Fang   +6 more
doaj   +1 more source

Developing a Phantom for the Positronium Imaging Evaluation

Acta Physica Polonica B Proceedings Supplement, 2022
In this contribution, a concept for a new phantom for positronium imaging with PET scanners is described. The proposed phantom is based on the NEMA IEC phantom in which six high-activity spheres are filled with solutions characterized by a different mean ortho-positronium lifetime.
Łapkiewicz, G., Niedźwiecki, Sz., Moskal, P.   +2 more
openaire   +2 more sources

3D printing 18F radioactive phantoms for PET imaging

EJNMMI Physics, 2021
Purpose Phantoms are routinely used in molecular imaging to assess scanner performance. However, traditional phantoms with fillable shapes do not replicate human anatomy.
Daniel Gillett, Daniel Marsden, Safia Ballout, Bala Attili, Nick Bird, Sarah Heard, Mark Gurnell, Iosif A. Mendichovszky, Luigi Aloj   +8 more
doaj   +1 more source

Materials for phantoms for terahertz pulsed imaging [PDF]

Physics in Medicine and Biology, 2004
Phantoms are commonly used in medical imaging for quality assurance, calibration, research and teaching. They may include test patterns or simulations of organs, but in either case a tissue substitute medium is an important component of the phantom. The aim of this work was to identify materials suitable for use as tissue substitutes for the relatively
Walker, G.C., Berry, E., Smye, S.E., Brettle, D.S.   +3 more
openaire   +3 more sources

Heterogeneous Breast Phantom Development for Microwave Imaging Using Regression Models

International Journal of Biomedical Imaging, 2012
As new algorithms for microwave imaging emerge, it is important to have standard accurate benchmarking tests. Currently, most researchers use homogeneous phantoms for testing new algorithms.
Camerin Hahn, Sima Noghanian
doaj   +1 more source

TomoPhantom, a software package to generate 2D–4D analytical phantoms for CT image reconstruction algorithm benchmarks

SoftwareX, 2018
In the field of computerized tomographic imaging, many novel reconstruction techniques are routinely tested using simplistic numerical phantoms, e.g. the well-known Shepp–Logan phantom.
Daniil Kazantsev, Valery Pickalov, Srikanth Nagella, Edoardo Pasca, Philip J. Withers   +4 more
doaj   +1 more source

Quantitative magnetic resonance imaging phantoms: A review and the need for a system phantom [PDF]

Magnetic Resonance in Medicine, 2017
The MRI community is using quantitative mapping techniques to complement qualitative imaging. For quantitative imaging to reach its full potential, it is necessary to analyze measurements across systems and longitudinally. Clinical use of quantitative imaging can be facilitated through adoption and use of a standard system phantom, a calibration ...
Kathryn E. Keenan, Maureen Ainslie, Alex J. Barker, Michael A. Boss, Kim M. Cecil, Cecil Charles, Thomas L. Chenevert, Larry Clarke, Jeffrey L. Evelhoch, Paul Finn, Daniel Gembris, Jeffrey L. Gunter, Derek L.G. Hill, Clifford R. Jack, Edward F. Jackson, Guoying Liu, Stephen E. Russek, Samir D. Sharma, Michael Steckner, Karl F. Stupic, Joshua D. Trzasko, Chun Yuan, Jie Zheng   +22 more
openaire   +3 more sources

Reproducibility of 3D-Printed Breast Phantoms in Mammography and Breast Tomosynthesis

Technologies
The development of realistic breast phantoms is critical for the evaluation of imaging systems and quantitative image analysis methods. In this work, breast samples derived from the same digital model were produced using 3D printing technology and ...
Kristina Bliznakova, Vencislav Nastev, Nikolay Dukov, Ivan Buliev, Zhivko Bliznakov, Valentina Dobreva, Chavdar Bachvarov, Georgi Todorov, Deyan Grancharov   +8 more
doaj   +1 more source