Results 101 to 110 of about 13,784 (246)

Optoacoustic Imaging and Tomography: Reconstruction Approaches and Outstanding Challenges in Image Performance and Quantification

open access: yesSensors, 2013
This paper comprehensively reviews the emerging topic of optoacoustic imaging from the image reconstruction and quantification perspective. Optoacoustic imaging combines highly attractive features, including rich contrast and high versatility in sensing ...
Daniel Razansky, Christian Lutzweiler
doaj   +1 more source

Optoacoustic detection of tissue glycation

open access: yesBiomedical Optics Express, 2015
Oxidative-based diseases including diabetes, chronic renal failure, cardiovascular diseases and neurological disorders are accompanied by accumulation of advanced glycation endproducts (AGE). Therefore, AGE-associated changes in tissue optical properties could yield a viable pathological indicator for disease diagnostics and monitoring. We investigated
Ghazaryan, A.   +3 more
openaire   +3 more sources

Phototrophic purple bacteria as optoacoustic in vivo reporters of macrophage activity

open access: yesNature Communications, 2019
Current optoacoustic probes for cancer imaging have limitations including background noise, long-term toxicity and scarce imaging depth in living tissue.
Lena Peters   +8 more
doaj   +1 more source

Optoacoustic signal excitation with a tone-burst of short pulses

open access: yesPhotoacoustics, 2018
Individual light pulses with durations in the nanosecond range are most often employed in biomedical optoacoustic imaging. In this excitation regime, ultra-wideband acoustic responses are generated from tissues that cannot be efficiently captured with ...
X.L. Deán-Ben, D. Razansky
doaj   +1 more source

Image reconstruction in optoacoustics. [PDF]

open access: yes, 2015
This thesis investigates reconstruction techniques for optoacoustic (oa) imaging, implemented both in pulsed and continuous wave (cw) mode. Two approaches to incorporate the transducer geometry into model-based reconstruction are implemented and its benefits showcased in simulations and experiments.
openaire   +1 more source

INTERMODULATED OPTOACOUSTIC SPECTROSCOPY

open access: yesLe Journal de Physique Colloques, 1983
We discuss the application of the intermodulated optoacoustic detection to Doppler-free spectroscopy of simple molecules in the infrared region. An acoustic cell with high sensitivity at low pressure is described in detail and the pressure dependence of the intermodulated signal is reported.
TONELLI, MAURO   +2 more
openaire   +1 more source

PS01.35: Assessing Combretestatin A-4-Phosphate with Multispectral Optoacoustic Tomography as a Treatment for H1299 Lung Cancer [PDF]

open access: bronze, 2016
L.I. Liu   +5 more
openalex   +1 more source

Optoacoustic model-based inversion using anisotropic adaptive total-variation regularization

open access: yesPhotoacoustics, 2019
In optoacoustic tomography, image reconstruction is often performed with incomplete or noisy data, leading to reconstruction errors. Significant improvement in reconstruction accuracy may be achieved in such cases by using nonlinear regularization ...
Shai Biton   +4 more
doaj   +1 more source

Echographic detectability of optoacoustic signals from low-concentration PEG-coated gold nanorods

open access: yesInternational Journal of Nanomedicine, 2012
Francesco Conversano,1 Giulia Soloperto,1 Antonio Greco,1 Andrea Ragusa,1,2 Ernesto Casciaro,1 Fernanda Chiriacò,1 Christian Demitri,3 Giuseppe Gigli,2–5 Alfonso Maffezzoli,3 Sergio Casciaro11National Research Council, Institute of ...
Conversano F   +9 more
doaj  

Optical Metrology and Optoacoustics in Nondestructive Evaluation of Materials [PDF]

open access: bronze, 2023
З. Т. Назарчук   +2 more
openalex   +1 more source

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