Results 21 to 30 of about 4,310 (200)

Optical and Optoacoustic Imaging [PDF]

, 2020
The present chapter summarizes progress with optical methods that go beyond human vision. The focus is on two particular technologies: fluorescence molecular imaging and optoacoustic (photoacoustic) imaging. The rationale for the selection of these two methods is that in contrast to optical microscopy techniques, both fluorescence and optoacoustic ...
Razansky, Daniel, Ntziachristos, Vasilis
core   +10 more sources

Optimizing image fidelity in a spherical array geometry for pulse-echo ultrasound and volumetric optoacoustic imaging [PDF]

Photoacoustics
Spherical arrays are commonly used in volumetric optoacoustic tomography for optimal data acquisition. Yet, such a configuration poses challenges for integration with pulse-echo ultrasound used for image guidance, which relies on different signal ...
Cheng-Feng Tommy Chiang, Isaac Esteban, Xose-Luis Dean-Ben, Jeh-Hsing Hsu, Daniel Razansky, Hsiao-Chun Amy Lin   +5 more
doaj   +2 more sources

Multifunctional croconaine nanoparticles for efficient optoacoustic imaging of deep tumors and photothermal therapy [PDF]

Nanophotonics, 2022
The proper design of near-infrared light-absorbing agents enables efficient optoacoustic imaging-guided phototherapy. In particular, several croconaine-based organic agents with excellent optical properties have been recently reported for this purpose ...
Liu Nian, O’Connor Patrick, Gujrati Vipul, Anzenhofer Pia, Klemm Uwe, Kleigrewe Karin, Sattler Michael, Plettenburg Oliver, Ntziachristos Vasilis   +8 more
doaj   +2 more sources

Optoacoustic Imaging and Tomography: Reconstruction Approaches and Outstanding Challenges in Image Performance and Quantification

Sensors, 2013
This paper comprehensively reviews the emerging topic of optoacoustic imaging from the image reconstruction and quantification perspective. Optoacoustic imaging combines highly attractive features, including rich contrast and high versatility in sensing ...
Daniel Razansky, Christian Lutzweiler
doaj   +3 more sources

Echographic detectability of optoacoustic signals from low-concentration PEG-coated gold nanorods [PDF]

International Journal of Nanomedicine, 2012
Francesco Conversano,1 Giulia Soloperto,1 Antonio Greco,1 Andrea Ragusa,1,2 Ernesto Casciaro,1 Fernanda Chiriacò,1 Christian Demitri,3 Giuseppe Gigli,2–5 Alfonso Maffezzoli,3 Sergio Casciaro11National Research Council, Institute of ...
Conversano F, Soloperto G, Greco A, Ragusa A, Casciaro E, Chiriacò F, Demitri C, Gigli G, Maffezzoli A, Casciaro S   +9 more
doaj   +5 more sources

Optoacoustic imaging of the skin [PDF]

Experimental Dermatology, 2021
AbstractOptoacoustic (OA, photoacoustic) imaging capitalizes on the synergistic combination of light excitation and ultrasound detection to empower biological and clinical investigations with rich optical contrast while effectively bridging the gap between micro and macroscopic imaging realms. State‐of‐the‐art OA embodiments consistently provide images
Deán‐Ben, Xosé Luís, Razansky, Daniel   +1 more
openaire   +2 more sources

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

Liver 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, Yujia You, Xiaoyan Miao, Huan Deng, Wei Zhang, Huolin Ye, Ping Wang, Rongqin Zheng, Jie Ren, Tinghui Yin   +9 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

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