Results 21 to 30 of about 13,605,822 (324)

Progress of photoacoustic imaging combined with targeted photoacoustic contrast agents in tumor molecular imaging

Frontiers in Chemistry, 2022
Molecular imaging visualizes, characterizes, and measures biological processes at the molecular and cellular level. In oncology, molecular imaging is an important technology to guide integrated and precise diagnosis and treatment.
Yiwen Zheng, Mengyao Liu, Lixin Jiang
doaj   +1 more source

Towards quantitative tissue absorption imaging by combining photoacoustics and acousto-optics [PDF]

, 2012
We propose a strategy for quantitative photoacoustic mapping of chromophore concentrations that can be performed purely experimentally. We exploit the possibility of acousto-optic modulation using focused ultrasound, and the principle that photons follow
A. Hussain, Bauer, Bratchenia, Cox, Cox, E. Hondebrink, Gross, K. Daoudi, Laufer, Lesaffre, Li, Li, Rajian, Rosenthal, Selfridge, W. Steenbergen, Wang, Wang, Wang, Xu, Yao, Yin, Yuan, Zemp   +23 more
core   +15 more sources

Enhanced visibility through microbubble-induced photoacoustic fluctuation imaging [PDF]

JASA Express Letters, 2022
A photoacoustic contrast mechanism is presented based on the photoacoustic fluctuations induced by microbubbles flowing inside a micro-vessel filled with a continuous absorber.
Marco A. Inzunza-Ibarra, J. Angel Navarro-Becerra, Venkatalakshmi Narumanchi, Nick Bottenus, Todd W. Murray, Mark A. Borden   +5 more
doaj   +1 more source

Photoacoustic effect generated by moving optical sources: Motion in one dimension

, 2016
Wenyu Bai, Gerald J. Diebold
openalex   +3 more sources

Photoacoustic needle improves needle tip visibility during deep peripheral nerve block

Scientific Reports, 2021
We developed a novel technology using the photoacoustic effect that improve needle tip visibility. We evaluated whether this technology improves needle tip visibility when performing a deep peripheral nerve block in a cadaver model.
Kunitaro Watanabe, Joho Tokumine, Alan Kawarai Lefor, Harumasa Nakazawa, Katsuya Yamamoto, Hiroyuki Karasawa, Miki Nagase, Tomoko Yorozu   +7 more
doaj   +1 more source

Temporal Evolution of Refractive Index Induced by Short Laser Pulses Accounting for Both Photoacoustic and Photothermal Effects

Applied Sciences, 2022
Materials such as silicon, copper, gold, and aluminum exhibit strong absorption and scattering characterization under short-pulsed laser irradiation.
Zhiying Xia, Bin Ni, Ruijie Hou, Yang Zhang, Lianping Hou, Jamie Jiangmin Hou, John H. Marsh, Xuefeng Liu, Jichuan Xiong   +8 more
doaj   +1 more source

Indocyanine green loaded graphene oxide for high-efficient photoacoustic tumor therapy [PDF]

Journal of Innovative Optical Health Sciences, 2016
Photoacoustic therapy, using the photoacoustic effect of agents for selectively killing tumor cells, has shown promising for treating tumor. Utilization of high optical absorption probes can help to effectively improve the photoacoustic therapy ...
Baoyun Yan, Huan Qin
doaj   +1 more source

Saturation effect in functional photoacoustic imaging [PDF]

Journal of Biomedical Optics, 2010
We investigate the saturation effect, which describes the violation of the linearity between the measured photoacoustic amplitude and the object's optical absorption coefficient in functional photoacoustic imaging when the optical absorption in the object increases.
Wang, Jing, Liu, Tan, Jiao, Shuliang, Chen, Ruimin, Zhou, Qifa, Shung, K. Kirk, Wang, Lihong V., Zhang, Hao F.   +7 more
openaire   +3 more sources

Optical Light Sources and Wavelengths within the Visible and Near-Infrared Range Using Photoacoustic Effects for Biomedical Applications

Biosensors, 2022
The photoacoustic (PA) effect occurs when sound waves are generated by light according to the thermodynamic and optical properties of the materials; they are absorption spectroscopic techniques that can be applied to characterize materials that absorb ...
Unsang Jung, Jaemyung Ryu, Hojong Choi
doaj   +1 more source

Sound reproduction using the photoacoustic effect

Acoustical Science and Technology, 2013
Kaoru Yamabe, Yasuhiro Oikawa, Yoshio Yamasaki   +2 more
openalex   +3 more sources