Results 51 to 60 of about 92,210 (293)
Intravascular Photoacoustic Imaging [PDF]
IEEE Journal of Selected Topics in Quantum Electronics, 2010 Intravascular photoacoustic (IVPA) imaging is a catheter-based, minimally invasive, imaging modality capable of providing high-resolution optical absorption map of the arterial wall. Integrated with intravascular ultrasound (IVUS) imaging, combined IVPA and IVUS imaging can be used to detect and characterize atherosclerotic plaques building up in the ...
Bo, Wang +5 more
openaire +2 more sources
Excessive alcohol consumption induces methane production in humans and rats
Scientific Reports, 2017 Various studies have established the possibility of non-bacterial methane (CH4) generation in oxido-reductive stress conditions in plants and animals.
E. Tuboly +12 more
doaj +1 more source
Sensors, 2020 Multispectral photoacoustic imaging has been widely explored as an emerging tool to visualize and quantify tissue chromophores noninvasively. This modality can capture the spectral absorption signature of prominent tissue chromophores, such as oxygenated,
Valeria Grasso +2 more
doaj +1 more source
Photoacoustic nanoprobe for β-galactosidase activity detection and imaging in vivo [PDF]
Journal of Innovative Optical Health Sciences, 2019 Detection and visualization of β-galactosidase (β-gal) is essential to reflect its physiological and pathological effects on human health and disease, but it is still challenging to precisely track β-gal in vivo owing to the limitation of current ...
Qin Zeng, Yunxia Wu, Tao Zhang
doaj +1 more source
Photoacoustic Resonance Imaging
IEEE Journal of Selected Topics in Quantum Electronics, 2019 In this paper, a new imaging modality, named photoacoustic resonance imaging (PARI), is proposed and experimentally demonstrated. Being distinct from conventional single nanosecond laser pulse induced wideband PA signal, the proposed PARI method utilizes multiburst modulated laser source to induce PA resonant signal with enhanced signal strength and ...
Ruochong Zhang +5 more
openaire +2 more sources
Eavesdrop at Clinical Depths: Deep Photoacoustic Imaging with Internal Light Illumination
Advanced Devices & InstrumentationPhotoacoustic imaging (PAI) is a hybrid image modality that combines optical absorption contrast and acoustic detection of light-induced ultrasound waves.
Joseph J. Yang, Soon-Woo Cho, Junjie Yao
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 +5 more
core +3 more sources
Light: Science & ApplicationsPhotoacoustic spectroscopy (PAS) as a highly sensitive and selective trace gas detection technique has extremely broad application in many fields. However, the laser sources currently used in PAS limit the sensing performance. Compared to diode laser and
Shunda Qiao +6 more
semanticscholar +1 more source
Applied Sciences, 2021 An optical system for gaseous chloroform (CHCl3) detection based on wavelength modulation photoacoustic spectroscopy (WMPAS) is proposed for the first time by using a distributed feedback (DFB) laser with a center wavelength of 1683 nm where chloroform ...
Tie Zhang +3 more
doaj +1 more source
Deep learning acceleration of multiscale superresolution localization photoacoustic imaging
Light: Science & Applications, 2022 A superresolution imaging approach that localizes very small targets, such as red blood cells or droplets of injected photoacoustic dye, has significantly improved spatial resolution in various biological and medical imaging modalities.
Jongbeom Kim +9 more
semanticscholar +1 more source