Results 71 to 80 of about 1,807,104 (196)

Influence of the absorber dimensions on wavefront shaping based on volumetric optoacoustic feedback [PDF]

, 2015
The recently demonstrated control over light distribution through turbid media based on real-time three-dimensional optoacoustic feedback has offered promising prospects to interferometrically focus light within scattering objects.
Dean-Ben, X. L., Estrada, H., Ozbek, A., Razansky, D.   +3 more
core   +1 more source

Deep learning enables ultraviolet photoacoustic microscopy based histological imaging with near real-time virtual staining

Photoacoustics, 2021
Histological images can reveal rich cellular information of tissue sections, which are widely used by pathologists in disease diagnosis. However, the gold standard for histopathological examination is based on thin sections on slides, which involves ...
Lei Kang, Xiufeng Li, Yan Zhang, T. T. Wong   +3 more
semanticscholar   +1 more source

Wearable optical resolution photoacoustic microscopy [PDF]

Journal of Biophotonics, 2019
AbstractOptical resolution photoacoustic microscopy (ORPAM) is an emerging imaging technique, which has been extensively used to study various brain activities and disorders of the anesthetized/restricted rodents with a special focus on the morphological and functional visualization of cerebral cortex.
Qian Chen, Huikai Xie, Lei Xi
openaire   +2 more sources

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

Improving Photoacoustic-guided Focusing in Scattering Media by Spectrally Filtered Detection

, 2013
We experimentally and numerically study the potential of photoacoustic-guiding for light focusing through scattering samples via wavefront-shaping and iterative optimization.
Boccara, Claude, Bossy, Emmanuel, Chaigne, Thomas, Gateau, Jérôme, Gigan, Sylvain, Katz, Ori   +5 more
core   +3 more sources

Sensitivity of photoacoustic microscopy

Photoacoustics, 2014
Building on its high spatial resolution, deep penetration depth and excellent image contrast, 3D photoacoustic microscopy (PAM) has grown tremendously since its first publication in 2005. Integrating optical excitation and acoustic detection, PAM has broken through both the optical diffusion and optical diffraction limits.
Yao, Junjie, Wang, Lihong V.
openaire   +3 more sources

Image Enhancement and Noise Reduction Using Modified Delay-Multiply-and-Sum Beamformer: Application to Medical Photoacoustic Imaging

, 2018
Photoacoustic imaging (PAI) is an emerging biomedical imaging modality capable of providing both high contrast and high resolution of optical and UltraSound (US) imaging.
Mahloojifar, Ali, Mozaffarzadeh, Moein, Orooji, Mahdi   +2 more
core   +1 more source

Light Focusing and Two-Dimensional Imaging Through Scattering Media using the Photoacoustic Transmission-Matrix with an Ultrasound Array [PDF]

, 2014
We implement the photoacoustic transmission-matrix approach on a two-dimensional photoacoustic imaging system, using a 15 MHz linear ultrasound array.
Bossy, Emmanuel, Chaigne, Thomas, Gateau, Jerome, Gigan, Sylvain, Katz, Ori   +4 more
core   +2 more sources

High-speed wide-field photoacoustic microscopy using a cylindrically focused transparent high-frequency ultrasound transducer

Photoacoustics, 2022
Combining focused optical excitation and high-frequency ultrasound detection, optical-resolution photoacoustic microscopy (OR-PAM) can provide micrometer-level spatial resolution with millimeter-level penetration depth and has been employed in a variety ...
Maomao Chen, Laiming Jiang, Clare B. Cook, Yushun Zeng, Tri Vu, Ruimin Chen, Gengxi Lu, Wei Yang, Ulrike Hoffmann, Qifa Zhou, Junjie Yao   +10 more
semanticscholar   +1 more source

Photoacoustic Imaging using Combination of Eigenspace-Based Minimum Variance and Delay-Multiply-and-Sum Beamformers: Simulation Study

, 2017
Delay and Sum (DAS), as the most common beamforming algorithm in Photoacoustic Imaging (PAI), having a simple implementation, results in a low-quality image.
Avanji, Seyed Amin Ollah Izadi, Mahloojifar, Ali, Mozaffarzadeh, Moein, Orooji, Mahdi   +3 more
core   +1 more source