Results 211 to 220 of about 37,262 (246)

The confounding effects of skin colour in photoacoustic imaging

Else TR, Loreno C, Groves A, Cox BT, Gröhl J, Modolell I, Bohndiek SE, Roshan A.   +7 more
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Water-soluble N-heterocyclic carbene stabilized gold nanoparticles by top-down synthesis: performance in catalysis and photoacoustic imaging.

Nanoscale
Thomas SR, de Andrade Querino AL, Moreno-Alcántar G, Tran T, Rodríguez-Prieto T, Qian S, Di Giuseppe D, Anzenhofer P, Ntziachristos V, Silva H, Somoza V, Fischer RA, Casini A.   +12 more
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Photoacoustic computational ghost imaging

Optics Letters, 2022
Photoacoustic imaging with optical resolution usually requires a single-pixel raster scan. An alternative approach based on illumination with patterns obtained from a Hadamard matrix, measurement of the generated ultrasound wave with a single detector, followed by a reconstruction known from computational ghost imaging is demonstrated here.
Paul R, Torke, Robert, Nuster, Guenther, Paltauf   +2 more
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Photoacoustic imaging for microcirculation

Microcirculation, 2022
AbstractMicrocirculation facilitates the blood‐tissue exchange of nutrients and regulates blood perfusion. It is, therefore, essential in maintaining tissue health. Aberrations in microcirculation are potentially indicative of underlying cardiovascular and metabolic pathologies.
Shubham Mirg, Kevin L. Turner, Haoyang Chen, Patrick J. Drew, Sri‐Rajasekhar Kothapalli   +4 more
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Photoacoustic imaging endoscope

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009
We currently present a design concept for a photoacoustic imaging endoscope as well as some preliminary experimental results. The device is based on the generation of acoustic waves in tissue by short laser pulses and the sensing of these waves with a thin, optical Fabry-Pérot etalon.
C, Sheaff, N, Lau, H, Patel, S W, Huang, S, Ashkenazi   +4 more
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Differential-absorption photoacoustic imaging

Optics Letters, 2009
We present differential-absorption photoacoustic imaging, which detects the difference between transient and ground-state absorption, for contrast enhancement based on suppressing undesired objects. Two tubes were imaged. One contains a Pt(II) octaethylporphine (PtOEP) dye solution and serves as an object of interest, while the other contains an IR-783
Sheng-Wen, Huang, Janet F, Eary, Congxian, Jia, Lingyun, Huang, Shai, Ashkenazi, Matthew, O'Donnell   +5 more
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Photoacoustic imaging demonstration

The Journal of the Acoustical Society of America, 2020
Experiments [T. J. Allen and P. C. Beard, “High power visible light emitting diodes as pulsed excitation sources for biomedical photoacoustics,” Biomed. Opt. Express 7(4), 1260–1270 (2016)] describe the use of a visible light-emitting diode (LED) as an alternative to using a Q-switched Nd:YAG laser as a photoacoustic excitation (1 mJ pulse) source for ...
Leah E. Burge, Murray S. Korman
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Image reconstruction in intravascular photoacoustic imaging

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2011
Intravascular photoacoustic (IVPA) imaging is a technique for visualizing atherosclerotic plaques with differential composition. Unlike conventional photoacoustic tomography scanning, where the scanning device rotates around the subject, the scanning aperture in IVPA imaging is enclosed within the imaged object.
Yae-lin, Sheu, Cheng-Ying, Chou, Bao-Yu, Hsieh, Pai-Chi, Li   +3 more
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3D photoacoustic imaging

SPIE Proceedings, 2010
Our group has concentrated on development of a 3D photoacoustic imaging system for biomedical imaging research. The technology employs a sparse parallel detection scheme and specialized reconstruction software to obtain 3D optical images using a single laser pulse.
Jeffrey J. L. Carson, Michael Roumeliotis, Govind Chaudhary, Robert Z. Stodilka, Mark A. Anastasio   +4 more
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Photoacoustic molecular imaging

SPIE Proceedings, 2007
It is well documented that photoacoustic imaging has the capability to differentiate tissue based on the spectral characteristics of tissue in the optical regime. The imaging depth in tissue exceeds standard optical imaging techniques, and systems can be designed to achieve excellent spatial resolution.
William L. Kiser, Jr., Daniel Reinecke, Timothy DeGrado, Sibaprasad Bhattacharyya, Robert A. Kruger   +4 more
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