Results 31 to 40 of about 6,206 (208)

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

Radiology 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

BMC 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, Bowen Zheng, Yufan Lian, Haifeng Li, Lei Tan, Shicheng Xu, Yong Liu, Tao Wu, Jie Ren   +8 more
doaj   +1 more source

Merged molecular switches excel as optoacoustic dyes: azobenzene-cyanines are loud and photostable NIR imaging agents [PDF]

, 2023
Optoacoustic imaging, also known as photoacoustic imaging, promises micron-resolution noninvasive imaging in biology at much deeper penetration (>cm) depths than e.g. fluorescence.
Benjamin, Dietzek-Ivanšić, Oliver, Thorn-Seshold, Markus, Müller, Andras, Telek, Vipul, Gujrati, Abha, Valavalkar, Sean, Hartmann, Vasilis, Ntziachristos, Achim, Hartschuh, Nian, Liu   +9 more
core   +1 more source

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

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 endocrinology and metabolism. [PDF]

, 2021
Imaging is an essential tool in research, diagnostics and the management of endocrine disorders. Ultrasonography, nuclear medicine techniques, MRI, CT and optical methods are already used for applications in endocrinology.
Pleitez, M.A., Aguirre Bueno, J., Karlas, A., Ntziachristos, V.   +3 more
core   +1 more source

Disentangling the Frequency Content in Optoacoustics

IEEE Transactions on Medical Imaging, 2022
28 pages, 5 figures, 1 supplemental ...
Antonia Longo, Dominik Jüstel, Vasilis Ntziachristos   +2 more
openaire   +4 more sources

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

Development of Contrast Agents for Optoacoustic Imaging [PDF]

, 2023
Optoacoustic imaging is an emerging modality with inherent advantages relevant for clinical use. Following excitation of optoacoustic contrast agents with ultrashort (~10 ns) pulses of near-infrared light, thermoelastic contractions and expansions of the
MacCuaig, William
core  

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