Results 111 to 120 of about 1,807,104 (196)

A review of clinical photoacoustic imaging: Current and future trends

Photoacoustics, 2019
Photoacoustic imaging (or optoacoustic imaging) is an upcoming biomedical imaging modality availing the benefits of optical resolution and acoustic depth of penetration. With its capacity to offer structural, functional, molecular and kinetic information
Amalina Binte Ebrahim Attia, Ghayathri Balasundaram, Mohesh Moothanchery, U.S. Dinish, Renzhe Bi, Vasilis Ntziachristos, Malini Olivo   +6 more
doaj   +1 more source

Advances in high‐resolution photoacoustic imaging techniques for cellular visualization

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Photoacoustic imaging is an advanced biomedical imaging technique that combines optical excitation and ultrasound detection to provide molecular functional information of biological tissues in vivo.
Hyunjun Kye, Moon Sung Kang, Dongyoung Jo, Byullee Park, Hee Jeong Jang, Jeesu Kim, Dong‐Wook Han   +6 more
doaj   +1 more source

Optical-resolution photoacoustic imaging through thick tissue with a thin capillary as a dual optical-in acoustic-out waveguide

, 2015
We demonstrate the ability to guide high-frequency photoacoustic waves through thick tissue with a water-filled silica-capillary (150 \mu m inner diameter and 30 mm long).
Bossy, Emmanuel, Gateau, Jerome, Huignard, Jean-Pierre, Moser, Christophe, Psaltis, Demetri, Simandoux, Olivier, Stasio, Nicolino   +6 more
core   +1 more source

Harnessing evanescent photoacoustic waves for multi-domain imaging

Photoacoustics
Photoacoustic microscopy (PAM) offers a non-invasive imaging method that overcomes the limitations of light scattering in biological tissues by visualizing optical contrast through the detection of photo-generated acoustic signals.
Rong Zhou, Liying Zhang, Beibei Li, Jingtao Xiao, Yiheng Xing, Chang Chen, Yuecheng Shen, Hao Shen, Deng Pan, Hongxing Xu   +9 more
doaj   +1 more source

Effects of optical attenuation, heat diffusion and acoustic coherence in photoacoustic signals produced by nanoparticles

, 2018
Behavior of the photoacoustic signal produced by nanoparticles as a function of their concentration was studied in detail. As the concentration of nanoparticles is increased in a sample, the peak-to-peak photoacoustic amplitude increases linearly up to a
Alba-Rosales, J. E., Escamilla-Herrera, L. F., Gutiérrez-Juárez, G., Polo-Parada, L., Ramos-Ortiz, G., Reyes-Ramírez, B.   +5 more
core   +1 more source

Graphics processing unit accelerating compressed sensing photoacoustic computed tomography with total variation [PDF]

, 2020
Photoacoustic computed tomography with compressed sensing (CS-PACT) is a commonly used imaging strategy for sparse-sampling PACT. However, it is very time-consuming because of the iterative process involved in the image reconstruction.
Bai, Yuanyuan, Gao, Mingjie, Liu, Chengbo, Meng, Jing, Si, Guangtao, Wang, Lihong V.   +5 more
core  

Molecular imaging of oxidative stress using an LED-based photoacoustic imaging system. [PDF]

, 2019
LED-based photoacoustic imaging has practical value in that it is affordable and rugged; however, this technology has largely been confined to anatomic imaging with limited applications into functional or molecular imaging.
Hariri, Ali, Jeevarathinam, Ananthakrishna Soundaram, Jokerst, Jesse V, Lemaster, Jeanne, Zhang, Jianjian, Zhao, Eric   +5 more
core  

Photoacoustic microscopy in tissue engineering

Materials Today, 2013
Photoacoustic tomography (PAT) is an attractive modality for noninvasive, volumetric imaging of scattering media such as biological tissues. By choosing the ultrasonic detection frequency, PAT enables scalable spatial resolution with desired imaging depth up to ~7 cm while maintaining a high depth-to-resolution ratio of ~200 and consistent optical ...
Cai, Xin, Zhang, Yu Shrike, Xia, Younan, Wang, Lihong V.   +3 more
openaire   +3 more sources

Multiview optical resolution photoacoustic microscopy

Optica, 2014
Optical resolution photoacoustic microscopy (OR-PAM), while providing high lateral resolution, has been limited by its relatively poor acoustically determined axial resolution. Although this limitation has been tackled in recent works by using either broadband acoustic detection or nonlinear photoacoustic effects, a flexible solution with three ...
Zhu, Liren, Li, Lei, Gao, Liang, Wang, Lihong V.   +3 more
openaire   +3 more sources

Dual-Modal In Vivo Fluorescence/Photoacoustic Microscopy Imaging of Inflammation Induced by GFP-Expressing Bacteria

Sensors, 2019
In this study, dual-modal fluorescence and photoacoustic microscopy was performed for noninvasive and functional in vivo imaging of inflammation induced by green fluorescent protein (GFP) transfected bacteria in mice ear. Our imaging results demonstrated
Yubin Liu, Lei Fu, Mengze Xu, Jun Zheng, Zhen Yuan   +4 more
doaj   +1 more source