Results 21 to 30 of about 2,751 (173)

Full-view LED-based optoacoustic tomography

open access: yesPhotoacoustics, 2023
Optoacoustic tomography is commonly performed with bulky and expensive short-pulsed solid-state lasers providing high per-pulse energies in the millijoule range.
Xiang Liu   +5 more
doaj   +1 more source

Optoacoustic imaging in gastroenterology [PDF]

open access: yesTranslational Biophotonics, 2019
AbstractImaging modalities are crucial for diagnosis and monitoring of various gastroenterological diseases. To overcome limitations in established imaging methods, to improve outcome and reduce invasive procedures alternate modalities are needed. Optoacoustic imaging (OAI), an emerging method in both preclinical and translational settings, offers ...
Daniel M. Klett, Maximilian J. Waldner
openaire   +1 more source

Frequency wavelength multiplexed optoacoustic tomography

open access: yesNature Communications, 2022
Optoacoustic imaging is mostly performed in the time domain. Here the authors demonstrate frequency wavelength multiplexed optoacoustic tomography that can operate at multiple wavelengths simultaneously and offers signal-to-noise ratio advantages over ...
Antonios Stylogiannis   +5 more
doaj   +1 more source

Multispectral optoacoustic tomography might be a helpful tool for noninvasive early diagnosis of psoriatic arthritis

open access: yesPhotoacoustics, 2021
Currently used imaging methods for diagnosis of psoriatic arthritis (PsA) frequently come along with exposure to radiation and can often only show long-term effects of the disease.
Sandra Hallasch   +4 more
doaj   +1 more source

Small Molecule Optoacoustic Contrast Agents: An Unexplored Avenue for Enhancing In Vivo Imaging

open access: yesMolecules, 2018
Almost every variety of medical imaging technique relies heavily on exogenous contrast agents to generate high-resolution images of biological structures.
Matt D. Laramie   +4 more
doaj   +1 more source

In vitro optoacoustic flow cytometry with light scattering referencing

open access: yesScientific Reports, 2021
Morphological and functional optoacoustic imaging is enhanced by dedicated transgene reporters, in analogy to fluorescence methods. The development of optoacoustic reporters using protein engineering and directed evolution would be accelerated by high ...
Markus Seeger   +2 more
doaj   +1 more source

Imaging of blood flow and oxygen state with a multi-segment optoacoustic ultrasound array

open access: yesPhotoacoustics, 2018
Changes in hemodynamic parameters are directly linked to biological function and physiological activity. Characterization of hemodynamics is commonly performed by Doppler ultrasound, which provides accurate measurements of blood flow velocity.
Elena Merčep   +2 more
doaj   +1 more source

High-precision neural stimulation by a highly efficient candle soot fiber optoacoustic emitter

open access: yesFrontiers in Neuroscience, 2022
Highly precise neuromodulation with a high efficacy poses great importance in neuroscience. Here we developed a candle soot fiber optoacoustic emitter (CSFOE), capable of generating a high pressure of over 10 MPa with a central frequency of 12.8 MHz ...
Guo Chen   +15 more
doaj   +1 more source

High-Resolution Multispectral Optoacoustic Tomography of the Vascularization and Constitutive Hypoxemia of Cancerous Tumors

open access: yesNeoplasia: An International Journal for Oncology Research, 2016
Diversity of the design and alignment of illumination and ultrasonic transducers empower the fine scalability and versatility of optoacoustic imaging.
Andrei Chekkoury   +8 more
doaj   +1 more source

A review of clinical photoacoustic imaging: Current and future trends

open access: yesPhotoacoustics, 2019
Photoacoustic imaging (or optoacoustic imaging) is an upcoming biomedical imaging modality availing the benefits of optical resolution and acoustic depth of penetration. With its capacity to offer structural, functional, molecular and kinetic information
Amalina Binte Ebrahim Attia   +6 more
doaj   +1 more source

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