Results 11 to 20 of about 26,065 (198)
Photoacoustic elastography [PDF]
Optics Letters, 2016 Elastography can noninvasively map the elasticity distribution in biological tissue, which can potentially be used to reveal disease conditions. In this Letter, we have demonstrated photoacoustic elastography by using a linear-array photoacoustic computed tomography system. The feasibility of photoacoustic elastography was first demonstrated by imaging
Hai, Pengfei +4 more
openaire +3 more sources
Optics Letters, 2009 We have developed photoacoustic endoscopy with a miniaturized imaging probe. A light-guiding optical fiber, an ultrasonic sensor, and a mechanical scanning unit are integrated to enable circumferential sector scanning, which produces B-scan images. Biological tissues, including the gastrointestinal tract of a rat, have been imaged ex vivo or in situ.
Yang, Joon-Mo +5 more
openaire +3 more sources
Photoacoustic microscopy [PDF]
Laser & Photonics Reviews, 2013 AbstractPhotoacoustic microscopy (PAM) is a hybridin vivoimaging technique that acoustically detects optical contrast via the photoacoustic effect. Unlike pure optical microscopic techniques, PAM takes advantage of the weak acoustic scattering in tissue and thus breaks through the optical diffusion limit (∼1 mm in soft tissue).
Yao, Junjie, Wang, Lihong V.
openaire +3 more sources
Photoacoustic Cystography [PDF]
Journal of Visualized Experiments, 2013 Conventional pediatric cystography, which is based on diagnostic X-ray using a radio-opaque dye, suffers from the use of harmful ionizing radiation. The risk of bladder cancers in children due to radiation exposure is more significant than many other cancers.
Jeon, M, Kim, J, Kim, C
openaire +3 more sources
Cold Spring Harbor Protocols, 2011 INTRODUCTIONPhotoacoustic imaging, which is based on the photoacoustic effect, has developed extensively over the last decade. Possessing many attractive characteristics such as the use of nonionizing electromagnetic waves, good resolution and contrast, portable instrumention, and the ability to partially quantitate the signal, photoacoustic techniques
Yin, Zhang, Hao, Hong, Weibo, Cai
openaire +2 more sources
Neurovascular photoacoustic tomography [PDF]
Frontiers in Neuroenergetics, 2010 Neurovascular coupling refers to the relationship between neuronal activities and downstream hemodynamic responses. Photoacoustic tomography (PAT), enabling comprehensive label-free imaging of hemodynamic activities with highly scalable penetration and spatial resolution, has great potential in the study of neurovascular coupling.
Hu, Song, Wang, Lihong V.
openaire +3 more sources
Photoacoustic computed microscopy [PDF]
Scientific Reports, 2014 Photoacoustic microscopy (PAM) is emerging as a powerful technique for imaging microvasculature at depths beyond the ~1 mm depth limit associated with confocal microscopy, two-photon microscopy and optical coherence tomography. PAM, however, is currently qualitative in nature and cannot quantitatively measure important functional parameters including ...
Yao, Lei, Xi, Lei, Jiang, Huabei
openaire +2 more sources
Urogenital photoacoustic endoscope [PDF]
Optics Letters, 2014 Photoacoustic (PA) endoscopy for human urogenital imaging has the potential to diagnose many important diseases, such as endometrial and prostate cancers. We have specifically developed a 12.7 mm diameter, rigid, side-scanning PA endoscopic probe for such applications.
Li, Chiye +8 more
openaire +3 more sources
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 +8 more
openaire +2 more sources
Archives of Acoustics, 2020 49th Winter School on Wave and Quantum Acoustics constituted platforms for sharing the results and achievements obtained in different branches of physical acoustics, as molecular acoustics, quantum acoustics, acousto-optics, magnetoacoustics ...
Dariusz Bismor
doaj +1 more source