Results 11 to 20 of about 61,907 (317)

Photoacoustic Imaging [PDF]

open access: yesCold 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   +3 more sources

Photoacoustic Tomography Appearance of Fat Necrosis: A First-in-Human Demonstration of Biochemical Signatures along with Histological Correlation [PDF]

open access: goldDiagnostics, 2022
A 50-year-old woman with no past medical history presented with a left anterior chest wall mass that was clinically soft, mobile, and non-tender. A targeted ultrasound (US) showed findings suggestive of a lipoma.
Yonggeng Goh   +13 more
doaj   +2 more sources

Photoacoustic elastography [PDF]

open access: bronzeOptics 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
Pengfei Hai   +4 more
core   +7 more sources

Seeing through the Skin: Photoacoustic Tomography of Skin Vasculature and Beyond

open access: yesJID Innovations, 2021
Skin diseases are the most common human diseases and manifest in distinct structural and functional changes to skin tissue components such as basal cells, vasculature, and pigmentation. Although biopsy is the standard practice for skin disease diagnosis,
Daiwei Li   +4 more
doaj   +1 more source

Deep-Learning-Based Algorithm for the Removal of Electromagnetic Interference Noise in Photoacoustic Endoscopic Image Processing

open access: yesSensors, 2022
Despite all the expectations for photoacoustic endoscopy (PAE), there are still several technical issues that must be resolved before the technique can be successfully translated into clinics.
Oleksandra Gulenko   +7 more
doaj   +1 more source

Photoacoustic Tomography (PAT) [PDF]

open access: yes, 2021
Photoacoustic (or optoacoustic) imaging, including photoacoustic tomography (PAT) and photoacoustic microscopy (PAM), is an emerging imaging modality with great clinical potential. PAI’s deep tissue penetration and fine spatial resolution also hold great

core   +1 more source

Deep image prior for undersampling high-speed photoacoustic microscopy

open access: yesPhotoacoustics, 2021
Photoacoustic microscopy (PAM) is an emerging imaging method combining light and sound. However, limited by the laser’s repetition rate, state-of-the-art high-speed PAM technology often sacrifices spatial sampling density (i.e., undersampling) for ...
Tri Vu   +12 more
doaj   +1 more source

Truncated correlation photoacoustic coherence tomography: An axial resolution enhancement imaging modality

open access: yesPhotoacoustics, 2021
In this report we present a novel photoacoustic (PA) modality using pulsed chirp excitation at a fixed wavelength and spectral analysis based on frequency-domain (FD) processing.
Alireza Jangjoo   +4 more
doaj   +1 more source

Photoacoustic microscopy [PDF]

open access: yesLaser & 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

Progress of photoacoustic imaging combined with targeted photoacoustic contrast agents in tumor molecular imaging

open access: yesFrontiers in Chemistry, 2022
Molecular imaging visualizes, characterizes, and measures biological processes at the molecular and cellular level. In oncology, molecular imaging is an important technology to guide integrated and precise diagnosis and treatment.
Yiwen Zheng, Mengyao Liu, Lixin Jiang
doaj   +1 more source

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