Results 51 to 60 of about 560,191 (256)

Single laser-shot super-resolution photoacoustic tomography with fast sparsity-based reconstruction

Photoacoustics, 2021
Recently, ℓ1-norm based reconstruction approaches have been used with linear array systems to improve photoacoustic resolution and demonstrate undersampled imaging when there is sufficient sparsity in some domain.
David Egolf, Quinn Barber, Roger Zemp
doaj   +1 more source

Photoacoustic imaging with fiber optic technology: A review

Photoacoustics, 2020
Photoacoustic imaging (PAI) has achieved remarkable growth in the past few decades since it takes advantage of both optical and ultrasound (US) imaging. In order to better promote the wide clinical applications of PAI, many miniaturized and portable PAI ...
Jingcheng Zhou, Jesse V. Jokerst
doaj   +1 more source

Photoacoustic imaging of voltage responses beyond the optical diffusion limit

Scientific Reports, 2017
Non-invasive optical imaging of neuronal voltage response signals in live brains is constrained in depth by the optical diffusion limit, which is due primarily to optical scattering by brain tissues. Although photoacoustic tomography breaks this limit by
Bin Rao, Ruiying Zhang, Lei Li, Jin-Yu Shao, Lihong V. Wang   +4 more
doaj   +1 more source

Mitochondria‐Targeted Nanotherapies in Aging Neurodegenerative Disorders: Emerging Prospects and Clinical Potential

Advanced Healthcare Materials, EarlyView.
Mitochondria‐targeted nanotherapies emerge as a promising strategy for combating aging‐associated neurodegenerative disorders (NDs) by restoring mitochondrial function, reducing oxidative stress, and improving neuronal survival. Recent advances in nanotechnology, therapeutic delivery, and translational research are highlighted, providing insights into ...
Dnyandev G. Gadhave, Ashish B. Jadhav, Nitin B. Waghamode, Shubham Khot, Rajiya Khan, Ravi Hole, Shankar M. Dhobale, Manoj Aswar, Keshav Raj Paudel   +8 more
wiley   +1 more source

3D Photoacoustic Tomography System Based on Full-View Illumination and Ultrasound Detection

Applied Sciences, 2019
A 3D photoacoustic computed tomography (3D-PACT) system based on full-view illumination and ultrasound detection was developed and applied to 3D photoacoustic imaging of several phantoms.
Mingjian Sun, Depeng Hu, Wenxue Zhou, Yang Liu, Yawei Qu, Liyong Ma   +5 more
doaj   +1 more source

A Skull-Removed Chronic Cranial Window for Ultrasound and Photoacoustic Imaging of the Rodent Brain

Frontiers in Neuroscience, 2021
Ultrasound and photoacoustic imaging are emerging as powerful tools to study brain structures and functions. The skull introduces significant distortion and attenuation of the ultrasound signals deteriorating image quality.
Xuanhao Wang, Yan Luo, Yuwen Chen, Chaoyi Chen, Lu Yin, Tengfei Yu, Wen He, Cheng Ma, Cheng Ma, Cheng Ma   +9 more
doaj   +1 more source

Computed Tomography‐ and Photoacoustic Imaging‐Active Bioresorbable Electrospun Bismuth Nanoparticle‐Infused Small‐Diameter Vascular Grafts

Advanced Healthcare Materials, EarlyView.
A polymeric graft loaded with radiopaque bismuth nanoparticles is expected to undergo gradual polymer resorption and nanoparticle release. This design enables noninvasive, multimodal monitoring of device integrity, patency, and degradation using computed tomography alongside ultrasound and photoacoustic imaging over 12 weeks.
Allan John R. Barcena, Joy Vanessa D. Perez, Marvin R. Bernardino, Dominic Karl M. Bolinas, Kitz Paul D. Marco, Kim Claudette J. Fernandez, Archana Mishra, Erin Marie D. San Valentin, Jossana A. Damasco, Gino Martin Canlas, Natalie Fowlkes, Richard R. Bouchard, Steven Y. Huang, Marites P. Melancon   +13 more
wiley   +1 more source

Minimally invasive photoacoustic imaging: Current status and future perspectives

Photoacoustics, 2019
Photoacoustic imaging (PAI) is an emerging biomedical imaging modality that is based on optical absorption contrast, capable of revealing distinct spectroscopic signatures of tissue at high spatial resolution and large imaging depths.
Tianrui Zhao, Adrien E. Desjardins, Sebastien Ourselin, Tom Vercauteren, Wenfeng Xia   +4 more
doaj   +1 more source

On the adjoint operator in photoacoustic tomography

Inverse Problems, 2016
Photoacoustic Tomography (PAT) is an emerging biomedical "imaging from coupled physics" technique, in which the image contrast is due to optical absorption, but the information is carried to the surface of the tissue as ultrasound pulses. Many algorithms and formulae for PAT image reconstruction have been proposed for the case when a complete data set ...
Simon R Arridge, Marta M Betcke, Ben T Cox, Felix Lucka, Brad E Treeby   +4 more
openaire   +3 more sources

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

Advanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang, Avirup Sardar, Weijie Ji, Zhongyu Liu, Rongchao Jin   +4 more
wiley   +1 more source