Results 31 to 40 of about 1,759,840 (273)

Photoacoustic tomography of blood oxygenation: A mini review

Photoacoustics, 2018
Photoacoustic tomography (PAT) is a hybrid imaging modality that combines rich contrast of optical excitation and deep penetration of ultrasound detection.
Mucong Li, Yuqi Tang, Junjie Yao
doaj   +1 more source

Photoacoustic ocular imaging [PDF]

Optics Letters, 2010
We developed a photoacoustic ocular imaging device and demonstrated its utility in imaging the deeper layers of the eye including the retina, choroid, and optic nerve. Using safe laser intensity, the photoacoustic system was able to visualize the blood distribution of an enucleated pig's eye and an eye of a living rabbit.
Adam, de la Zerda, Yannis M, Paulus, Robert, Teed, Sunil, Bodapati, Yosh, Dollberg, Butrus T, Khuri-Yakub, Mark S, Blumenkranz, Darius M, Moshfeghi, Sanjiv Sam, Gambhir   +8 more
openaire   +2 more sources

Breast imaging using an LED-based photoacoustic and ultrasound imaging system: A proof-of-concept study [PDF]

, 2021
Photoacoustic imaging holds potential in diagnosis and treatment monitoring of breast cancer, but clinical translation of this technology has often been hindered by bulky and expensive excitation sources.
Manohar, Srirang, Steenbergen, Wiendelt, Kuniyil Ajith Singh, Mithun, Dantuma, Maura, Oraevsky, Alexander A., Kalloor Joseph, Francis, Wang, Lihong V.   +6 more
core   +1 more source

Nanoparticles for photoacoustic imaging [PDF]

WIREs Nanomedicine and Nanobiotechnology, 2009
AbstractNanoparticles have been designed and applied as contrast enhancers in various optical imaging techniques, such as optical coherence tomography, fluorescence imaging, and optical reflectance microscopy. As an emerging hybrid imaging modality, photoacoustic imaging (PAI) has also benefited from the application of these nanoparticle‐based contrast
Yang, Xinmai, Stein, Erich W., Ashkenazi, S., Wang, Lihong V.   +3 more
openaire   +3 more sources

Optical and Photoacoustic Imaging In Vivo: Opportunities and Challenges

Chemical & Biomedical Imaging, 2023
Optical and photoacoustic imaging plays an important role in biomedical applications owing to its noninvasiveness and high resolution. Fluorescence imaging and photoacoustic imaging emerge as powerful tools to deconstruct molecular information and ...
Xuan Zhang, Ying Wu, Lanlan Chen, Jibin Song, Huanghao Yang   +4 more
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Semantic segmentation of multispectral photoacoustic images using deep learning

Photoacoustics, 2022
Photoacoustic (PA) imaging has the potential to revolutionize functional medical imaging in healthcare due to the valuable information on tissue physiology contained in multispectral photoacoustic measurements.
Melanie Schellenberg, Kris K. Dreher, Niklas Holzwarth, Fabian Isensee, Annika Reinke, Nicholas Schreck, Alexander Seitel, Minu D. Tizabi, Lena Maier-Hein, Janek Gröhl   +9 more
doaj   +1 more source

Tomographic imaging with an ultrasound and LED-based photoacoustic system [PDF]

, 2020
Pulsed lasers in photoacoustic tomography systems are expensive, which limit their use to a few clinics and small animal labs. We present a method to realize tomographic ultrasound and photoacoustic imaging using a commercial LED-based photoacoustic and ...
Manohar, Srirang, Francis, Kalloor Joseph, Steenbergen, Wiendelt, Singh, Mithun Kuniyil Ajith, Dantuma, Maura, Boink, Yoeri E.   +5 more
core   +2 more sources

Freehand scanning photoacoustic microscopy with simultaneous localization and mapping

Photoacoustics, 2022
Optical-resolution photoacoustic microscopy offers high-resolution, label-free hemodynamic and functional imaging to many biomedical applications. However, long-standing technical barriers, such as limited field of view, bulky scanning probes, and slow ...
Jiangbo Chen, Yachao Zhang, Jingyi Zhu, Xu Tang, Lidai Wang   +4 more
doaj   +1 more source

In vivo demonstration of reflection artifact reduction in photoacoustic imaging using synthetic aperture photoacoustic-guided focused ultrasound (PAFUSion) [PDF]

, 2016
Reflection artifacts caused by acoustic inhomogeneities are a critical problem in epi-mode biomedical photoacoustic imaging. High light fluence beneath the probe results in photoacoustic transients, which propagate into the tissue and reflect back from ...
Steenbergen, Wiendelt, Singh, Mithun Kuniyil Ajith, Jaeger, Michael, Kuniyil Ajith Singh, M., Frenz, Martin, Frenz, M., Jaeger, M.   +6 more
core   +3 more sources

Recovery of photoacoustic images based on accurate ultrasound positioning

Visual Computing for Industry, Biomedicine, and Art, 2021
Photoacoustic microscopy is an in vivo imaging technology based on the photoacoustic effect. It is widely used in various biomedical studies because it can provide high-resolution images while being label-free, safe, and harmless to biological tissue ...
Yinhao Pan, Ningbo Chen, Liangjian Liu, Chengbo Liu, Zhiqiang Xu, Jianhui Zhang   +5 more
doaj   +1 more source