Results 71 to 80 of about 41,405 (209)

Intravascular photoacoustic and optical coherence tomography imaging dual-mode system for detecting spontaneous coronary artery dissection: A feasibility study

Journal of Innovative Optical Health Sciences
In this work, we present an intravascular dual-mode endoscopic system capable of both intravascular photoacoustic imaging (IVPAI) and intravascular optical coherence tomography (IVOCT) for recognizing spontaneous coronary artery dissection (SCAD ...
Yongwei Wang, Yuyang Wan, Zhongjiang Chen   +2 more
doaj   +1 more source

Biomimetic 3D-printed neurovascular phantoms for near-infrared fluorescence imaging

, 2018
Emerging three-dimensional (3D) printing technology enables the fabrication of optically realistic and morphologically complex tissue-simulating phantoms for the development and evaluation of novel optical imaging products.
Pejhman Ghassemi, Jianting Wang, T. Joshua Pfefer, Yu Chen, Andrew Depkon, Qinggong Tang, Yi Liu, Maria Ida Iacono, Jonathan Lin, Gonzalo Mendoza   +9 more
core   +1 more source

Chemical items used for preparing tissue-mimicking material of wall-less flow phantom for doppler ultrasound imaging

Journal of Medical Ultrasound, 2018
The wall-less flow phantoms with recognized acoustic features (attenuation and speed of sound), interior properties, and dimensions of tissue were prepared, calibrated, and characterized of Doppler ultrasound scanning demands tissue-mimicking materials ...
Ammar A Oglat, M Z Matjafri, Nursakinah Suardi, Mohammad A Oqlat, Mostafa A Abdelrahman, Ahmad A Oqlat, Omar F Farhat, Batool N Alkhateb, Raed Abdalrheem, Muntaser S Ahmad, Mohammed Y. M. Abujazar   +10 more
doaj   +1 more source

Mechanically Powered Motion Imaging Phantoms: Proof of Concept [PDF]

, 2019
Motion imaging phantoms are expensive, bulky and difficult to transport and set-up. The purpose of this paper is to demonstrate a simple approach to the design of multi-modality motion imaging phantoms that use mechanically stored energy to produce ...
Toussaint, N, Toussaint, Nicolas,, Schmitz, Cornelia,, Schnabel, J, Schnabel, Julia A.,, Henningsson, Markus,, Zimmer, Veronika A.,, Oksuz, I, Housden, JR, Gomez, Alberto,, Schmitz, Cornelia, Toussaint, Nicolas, Clough, James R.; id_orcid, Schnabel, Julia A.; id_orcid, Noh, Yohan, King, Andrew P.; id_orcid, King, A, Zimmer, Veronika A., Clough, James R.,, Henningsson, M, Noh, Yohan,, Zimmer, V, Housden, James, Oksuz, Ilkay,, Oksuz, Ilkay; id_orcid, Housden, James,, Noh, Y, Clough, J, Schmitz, C, King, Andrew P.,, Gomez, A, Henningsson, Markus, Gomez, Alberto   +32 more
core   +1 more source

Advancements in Retinal Tissue-Mimicking Optical Coherence Tomography Phantoms: Materials, Properties, and Applications

BioChem
Optical coherence tomography (OCT) phantoms are essential tools for calibrating imaging systems, validating diagnostic algorithms, and bridging technological advancements with clinical applications. This review explores the development and application of
Mukhit Kulmaganbetov
doaj   +1 more source

Design of a UWB wide-slot antenna and a hemispherical array for breast imaging

, 2009
A microstrip, fork fed, wide slot antenna, printed on high permittivity substrate has been developed for the transmission of ultra wide bandwidth (UWB) signals into the breast.
Gibbins, David, Preece, Alan, Leendertz, Jack, Klemm, Maciej, Craddock, Ian, Benjamin, Ralph   +5 more
core  

Subjective evaluation of image quality based on images obtained with a breast tissue phantom: comparison with a conventional image quality phantom

The British Journal of Radiology, 1995
Abstract A breast tissue phantom was used for assessment of mammographic image quality. Three images, exposed to give a reference area film density of 1.25 ± 0.03, were obtained for each of five different film/kV combinations. Each of three radiologists carried out a series of three blind readings, in which the 15 films were ranked ...
J B, Olsen, E M, Sager
openaire   +2 more sources

Multi-energy computed tomography breast imaging with Monte Carlo simulations: Contrast-to-noise-based image weighting

Journal of Medical Physics, 2019
Context: Photon-counting detectors and breast computed tomography imaging have been an active area of research. With these detectors, photons are assigned an equal weight and weighting schemes can be enabled. More weight can be assigned to lower energies,
Déte Van Eeden, Freek C. P Du Plessis
doaj   +1 more source

Integrated system for ultrasonic, elasticity and photoacoustic imaging

, 2008
textBy integrating three complementary imaging techniques - ultrasound, elasticity and photoacoustic imaging, a hybrid imaging system utilizing an array transducer is proposed for various biomedical imaging applications including cancer detection ...
Park, Suhyun, 1977-
core  

Designing microarray phantoms for hyperspectral imaging validation

Biomedical Optics Express, 2012
The design and fabrication of custom-tailored microarrays for use as phantoms in the characterization of hyperspectral imaging systems is described. Corresponding analysis methods for biologically relevant samples are also discussed. An image-based phantom design was used to program a microarrayer robot to print prescribed mixtures of dyes onto ...
Clarke, Matthew L., Lee, Ji Youn, Samarov, Daniel V., Allen, David W., Litorja, Maritoni, Nossal, Ralph, Hwang, Jeeseong   +6 more
openaire   +2 more sources