Results 71 to 80 of about 4,310 (200)

Fluence compensation in raster-scan optoacoustic angiography

open access: yesPhotoacoustics, 2017
Modern optical imaging techniques demonstrate significant potential for high resolution in vivo angiography. Optoacoustic angiography benefits from higher imaging depth as compared to pure optical modalities.
Mikhail Kirillin   +3 more
doaj   +1 more source

3D interferometric optoacoustic imaging [PDF]

open access: yesSPIE Proceedings, 2005
ABSTRACTWe report on the further development of our previously described spectroscopic imaging technique based ontime-resolved interferometric measurements of laser-induced thermoelastic expansion (POISe: Pulsed OptoelasticInterferometric Spectroscopy and Imaging).
Carp, Stefan A, Venugopalan, Vasan
openaire   +3 more sources

Seeing the Speaker's Face Enhances Second Language Shadowing: Neural and Behavioral Evidence

open access: yesLanguage Learning, EarlyView.
Abstract This functional magnetic resonance imaging (fMRI) study investigated how facial cues influence second language (L2) shadowing among 42 Japanese learners of English. Participants completed four conditions that varied by task type (listening vs. shadowing) and visual input (face vs. mosaic).
Hyeonjeong Jeong   +7 more
wiley   +1 more source

Molecular imaging probes for multi-spectral optoacoustic tomography. [PDF]

open access: yes, 2017
Multi-Spectral Optoacoustic Tomography (MSOT) merges the power of high-resolution imaging at tissue depths of several millimeters to centimeters with the advantages of optical imaging, in large part by exploiting spectral detection of endogenous ...
Gujrati, Vipul;Mishra, Anurag;Ntziachristos, Vasilis
core   +3 more sources

Optoacoustic image formation approaches—a clinical perspective [PDF]

open access: yesPhysics in Medicine & Biology, 2019
Abstract Clinical translation of optoacoustic imaging is fostered by the rapid technical advances in imaging performance as well as the growing number of clinicians recognizing the immense diagnostic potential of this technology. Clinical optoacoustic systems are available in multiple configurations, including hand-held and endoscopic
Deán-Ben, Xosé Luís, Razansky, Daniel
openaire   +4 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Photoacoustic temperature imaging based on multi-wavelength excitation

open access: yesPhotoacoustics, 2019
Building further upon the high spatial resolution offered by ultrasonic imaging and the high optical contrast yielded by laser excitation of photoacoustic imaging, and exploiting the temperature dependence of photoacoustic signal amplitudes, this paper ...
Lei Meng   +7 more
doaj   +1 more source

In Vivo Microplastic Detection With Photoacoustic Imaging

open access: yesAdvanced Science, Volume 13, Issue 41, 22 July 2026.
ABSTRACT Microplastics are posing an escalating threat to both ecological systems and human health. Yet, current methods for investigating their bioaccumulation are highly invasive, requiring destructive analysis of ex vivo tissues via mass spectrometry, dye labelling, or Raman microspectroscopy.
Joseph C. Bear   +9 more
wiley   +1 more source

Integrated system for ultrasonic, elasticity and photoacoustic imaging [PDF]

open access: yes, 2008
textBy integrating three complementary imaging techniques - ultrasound, elasticity and photoacoustic imaging, a hybrid imaging system utilizing an array transducer is proposed for various biomedical imaging applications including cancer detection ...
Park, Suhyun, 1977-
core   +1 more source

Dumbbell‐Structured Plasmonic‐Enhanced Optical Nanoprobes Boosting Photo‐Magnetic‐Acoustic Multimodal Imaging‐Guided Photodynamic‐Photothermal Synergistic Treatment and Immunogenic Death in Nasopharyngeal Carcinoma

open access: yesAdvanced Science, Volume 13, Issue 39, 13 July 2026.
This study reports a novel rationally‐designed optical nanoprobe based on dumbbell‐shaped mesoporous silica‐coated gold nanorods, loaded with rare‐earth oxides, photosensitizers, and tumor‐targeted peptides, enabling plasmonic‐enhanced multimodal imaging and PTT‐PDT synergy.
Baikang Zhuang   +12 more
wiley   +1 more source

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