Results 21 to 30 of about 3,165 (178)

Sequential ultrasound molecular imaging for noninvasive identification and assessment of non-alcoholic steatohepatitis in mouse models

open access: yesLiver Research, 2023
Background and objective: Noninvasive non-alcoholic steatohepatitis (NASH) assessment is a clinical challenge to the management of non-alcoholic fatty liver disease.
Tingting Sha   +9 more
doaj   +1 more source

Multimodal Contrast Agents for Optoacoustic Brain Imaging in Small Animals

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Optoacoustic (photoacoustic) imaging has demonstrated versatile applications in biomedical research, visualizing the disease pathophysiology and monitoring the treatment effect in an animal model, as well as toward applications in the clinical setting ...
Xue-feng Shi   +5 more
doaj   +1 more source

Contrast-enhanced ultrasound of intrahepatic portal vein gas: Case report and review of literature

open access: yesRadiology Case Reports, 2021
Portal vein gas is a rare imaging finding and a concomitant sign of abdominal disease. Here, we report a 64-year-old man with an emphasis on contrast-enhanced ultrasound for describing the findings for portal vein gas and evaluating liver blood perfusion.
Tingting Sha, Tinghui Yin, Rongqin Zheng
doaj   +1 more source

Contrast-enhanced ultrasound improves the potency of fine-needle aspiration in thyroid nodules with high inadequate risk

open access: yesBMC Medical Imaging, 2022
Background This study aims to determine the clinical value of contrast enhanced ultrasound (CEUS) for fine-needle aspiration (FNA) of high inadequate risky thyroid nodules.
Tinghui Yin   +8 more
doaj   +1 more source

Intracolic ultrasound molecular imaging: a novel method for assessing colonic tumor necrosis factor-α expression in inflammatory bowel disease

open access: yesMolecular Medicine, 2021
Background While anti-tumor necrosis factor alpha (TNF-α) therapy has been proven effective in inflammatory bowel disease (IBD), approximately 40% of patients lose the response.
Xiaoyan Miao   +11 more
doaj   +1 more source

Cross-Medium Photoacoustic Communications: Challenges, and State of the Art

open access: yesSensors, 2022
The current era is notably characterized by the major advances in communication technologies. The increased connectivity has been transformative in terrestrial, space, and undersea applications. Nonetheless, the water medium imposes unique constraints on
Muntasir Mahmud   +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

Ultrafast Optoacoustics Reveals Intricate 3D Anisotropic Elasticity in Nanocrystalline Membranes. [PDF]

open access: yesAdv Sci (Weinh)
Ultrafast optoacoustic spectroscopy combined with a Sagnac interferometer enables non‐contact, simultaneous characterization of thickness and the full three‐dimensional anisotropic elastic constants in freestanding nanocrystalline copper membranes. By capturing gigahertz Lamb waves and zero‐group‐velocity resonances followed by SAFE‐GA inversion, the ...
Zhang S   +11 more
europepmc   +2 more sources

Disentangling the Frequency Content in Optoacoustics

open access: yesIEEE Transactions on Medical Imaging, 2022
28 pages, 5 figures, 1 supplemental ...
Antonia Longo   +2 more
openaire   +4 more sources

Image processing improvements afford second-generation handheld optoacoustic imaging of breast cancer patients

open access: yesPhotoacoustics, 2022
Background: Since the initial breast transillumination almost a century ago, breast cancer imaging using light has been considered in different implementations aiming to improve diagnostics, minimize the number of available biopsies, or monitor treatment.
Jan Kukačka   +9 more
doaj   +1 more source

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