Results 101 to 110 of about 6,206 (208)

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

Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 6, Page 3116-3130, June 2026.
ABSTRACT Purpose Echo‐Planar Imaging (EPI) is central to fMRI, diffusion MRI, and many dynamic clinical applications, yet rapid gradient switching induces strong mechanical vibrations, generates acoustic noise, and contributes to ghosting artifacts—effects that intensify at ultra‐high fields.
Amir Seginer   +6 more
wiley   +1 more source

Gold Nanoparticle–Trastuzumab Conjugates for HER2‐Positive Breast Cancer Treatment: Developments in Radionuclide Therapy, Multimodal Imaging, and Combination Strategies

open access: yesNano Select, Volume 7, Issue 6, June 2026.
ABSTRACT This work comprehensively examines recent advances in the treatment of human epidermal growth factor receptor 2 (HER2)‐positive breast cancer using trastuzumab‐conjugated gold nanoparticles (AuNPs). By analyzing several pivotal studies, it explores how these nanoplatforms enhance therapeutic specificity and efficacy while minimizing systemic ...
Tara Tarzi   +5 more
wiley   +1 more source

Sonophore-enhanced nanoemulsions for optoacoustic imaging of cancer [PDF]

open access: yes, 2018
Dark Quencher, IRDye QC1 in nanoemulsion form offers excellent optoacoustic performance, suitable for non-invasive pre-clinical optoacoustic imaging.
Thomas Reiner   +12 more
core   +1 more source

Multifiber Array‐Based Photometry System for Multiregional Functional Mapping in the Mouse Brain

open access: yesEuropean Journal of Neuroscience, Volume 63, Issue 12, June 2026.
Existing fiber photometry approaches suffer from invasiveness and limited scalability. A newly developed multifiber array‐based photometry system allows targeting multiple brain regions with less invasiveness. The system was validated in two jGCaMP8s‐expressing mouse lines by monitoring GABAergic neural population activity across multiple brain regions
Manil Bradai   +4 more
wiley   +1 more source

Optoacoustic Detection Employing Stark Voltage Modulation and Stark Polarization Modulation [PDF]

open access: yes, 1982
The conventional chopped laser radiation technique of optoacoustic detection suffers from a sensitivity-limiting synchronous background signal. This thesis reports on theoretical and experimental studies of two novel optoacoustic modulation techniques ...
Kavaya, Michael Joseph
core   +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

Video rate optoacoustic tomography of mouse kidney perfusion. [PDF]

open access: yes, 2010
Optoacoustic tomography can visualize optical contrast in tissues while capitalizing on the advantages of ultrasound, such as high spatial resolution and fast imaging capabilities.
Bühler, A.   +7 more
core   +1 more source

Activatable probes for diagnosing and positioning liver injury and metastatic tumors by multispectral optoacoustic tomography

open access: yesNature Communications, 2018
Optoacoustic tomography has great potential for medical diagnosis and preclinical research. Here they develop near infrared activatable xanthene-based optoacoustic probes for diagnosing and localizing drug-induced liver injury and metastasis in mouse ...
Yinglong Wu   +5 more
doaj   +1 more source

In vivo frequency domain optoacoustic tomography. [PDF]

open access: yes, 2012
Optoacoustic imaging has been primarily implemented in the time domain, i.e., using ultrashort nanosecond laser pulses for illumination. Alternatively, frequency domain optoacoustic imaging can be performed when employing amplitude modulated light ...
Kellnberger, Stephan;Deliolanis, Nikolaos C;Queirós, Daniel;Sergiadis, George;Ntziachristos, Vasilis
core  

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