Results 11 to 20 of about 13,784 (246)

Deep tissue optoacoustic monitoring of photothermal treatments in the NIR-II assisted with silica-coated gold nanorods. [PDF]

Npj Imaging
Remlova E, Jessernig A, Bammel M, Nozdriukhin D, Chen Y, Cipolato O, Deán-Ben XL, Herrmann IK, Razansky D.   +8 more
europepmc   +3 more sources

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

Molecular 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, Ren Mao, Yujia You, Huichao Zhou, Chen Qiu, Xuehua Li, Zhihui Chen, Jie Ren, Minhu Chen, Ping Wang, Rongqin Zheng, Tinghui Yin   +11 more
doaj   +1 more source

Passive element enriched photoacoustic computed tomography (PER PACT) for simultaneous imaging of acoustic propagation properties and light absorption\ud [PDF]

, 2011
We present a ‘hybrid’ imaging approach which can image both light absorption properties and acoustic transmission properties of an object in a two-dimensional slice using a computed tomography (CT) photoacoustic imager.
Hespen, J.C.G. van, Jose, Jithin, Leeuwen, Ton G. van, Manohar, Srirang, Piras, Daniele, Resink, Steffen, Slump, Cornelis H., Steenbergen, Wiendelt, Willemink, Rene G.H.   +8 more
core   +14 more sources

In vitro optoacoustic flow cytometry with light scattering referencing

Scientific 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, Andre C. Stiel, Vasilis Ntziachristos   +2 more
doaj   +1 more source

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

Sensors, 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, Md Shafiqul Islam, Akram Ahmed, Mohamed Younis, Fow-Sen Choa   +4 more
doaj   +1 more source

Optoacoustic Imaging in Inflammation [PDF]

Biomedicines, 2021
Optoacoustic or photoacoustic imaging (OAI/PAI) is a technology which enables non-invasive visualization of laser-illuminated tissue by the detection of acoustic signals. The combination of “light in” and “sound out” offers unprecedented scalability with a high penetration depth and resolution.
Regensburger, Adrian P, Brown, Emma, Krönke, Gerhard, Waldner, Maximilian J, Knieling, Ferdinand   +4 more
openaire   +3 more sources

Software-defined optoacoustic tomography

Applied Optics, 2020
In this work we present what we believe is the first application of software-defined optoelectronics (SDO) for bidimensional optoacoustic tomography (OAT). The SDO concept refers to optoelectronic systems where the functionality associated with the conditioning and processing of optical and electrical signals are digitally ...
Roberto M. Insabella, Martín G. González, Lucas M. Riobó, Klaus Hass, Francisco E. Veiras   +4 more
openaire   +4 more sources

An Automatic Unmixing Approach to Detect Tissue Chromophores from Multispectral Photoacoustic Imaging

Sensors, 2020
Multispectral photoacoustic imaging has been widely explored as an emerging tool to visualize and quantify tissue chromophores noninvasively. This modality can capture the spectral absorption signature of prominent tissue chromophores, such as oxygenated,
Valeria Grasso, Joost Holthof, Jithin Jose   +2 more
doaj   +1 more source

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

Photoacoustics, 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, Stephan Metz, Christoph Dehner, Alexander Muckenhuber, Korbinian Paul-Yuan, Angelos Karlas, Eva Maria Fallenberg, Ernst Rummeny, Dominik Jüstel, Vasilis Ntziachristos   +9 more
doaj   +1 more source

Rigid Hollow Microparticles for Enhanced Focused Ultrasound Treatment Under Optoacoustic Guidance. [PDF]

Adv Sci (Weinh)
By combining focused ultrasound (FUS) and acoustically active hollow borosilicate microparticles (HBMPs), we demonstrate tunable control over interparticle dynamics and their localized thermal energy deposition. Modulation of acoustic frequency and particle concentration tailors the energy delivery, allowing adaptive, material‐based regulation of ...
Mahkam N, Chen Y, Estrada H, Amitabh A, Aghakhani A, Sitti M, Razansky D.   +6 more
europepmc   +2 more sources