Results 41 to 50 of about 1,807,104 (196)
Double-illumination photoacoustic microscopy [PDF]
Optics Letters, 2012 Recent developments of optical-resolution photoacoustic microscopy (OR-PAM) have improved its spatial resolution and imaging speed. However, the penetration depth of OR-PAM is still limited to ~1 mm in tissue, owing to the strong tissue scattering. Here, we have developed double-illumination PAM (DI-PAM), which illuminates the sample from both top and ...
Yao, Junjie +5 more
openaire +3 more sources
Adaptive enhancement of acoustic resolution photoacoustic microscopy imaging via deep CNN prior.
Photoacoustics, 2023 Acoustic resolution photoacoustic microscopy (AR-PAM) is a promising medical imaging modality that can be employed for deep bio-tissue imaging. However, its relatively low imaging resolution has greatly hindered its wide applications.
Zhengyuan Zhang +7 more
semanticscholar +1 more source
Acta Dermato-Venereologica, 2022 Rapid diagnosis of suspicious pigmented skin lesions is imperative; however, current bedside skin imaging technologies are either limited in penetration depth or resolution.
Terese von Knorring +8 more
doaj +1 more source
Single-shot linear dichroism optical-resolution photoacoustic microscopy
Photoacoustics, 2019 Dichroism is a material property that causes anisotropic light-matter interactions for different optical polarizations. Dichroism relates to molecular types and material morphology and thus can be used to distinguish different dichroic tissues.
Yingying Zhou +5 more
doaj +1 more source
Super-resolution photoacoustic fluctuation imaging with multiple speckle illumination [PDF]
, 2015 In deep tissue photoacoustic imaging, the spatial resolution is inherently limited by acoustic diffraction. Moreover, as the ultrasound attenuation increases with frequency, resolution is often traded-off for penetration depth.
Allain, Marc +6 more
core +4 more sources
Azimuth mapping of fibrous tissue in linear dichroism-sensitive photoacoustic microscopy
Photoacoustics, 2023 Photoacoustic imaging (PAI) has emerged as a molecular-selective imaging technology based on optical absorption contrast. Dichroism-sensitive photoacoustic (DS-PA) imaging has been reported, where the absorption coefficient has a vector characteristic ...
Eunwoo Park +3 more
semanticscholar +1 more source
Laser scanning laser diode photoacoustic microscopy system
Photoacoustics, 2018 The development of low-cost and fast photoacoustic microscopy systems enhances the clinical applicability of photoacoustic imaging systems. To this end, we present a laser scanning laser diode-based photoacoustic microscopy system.
Mohsen Erfanzadeh +2 more
doaj +1 more source
Real-time delay-multiply-and-sum beamforming with coherence factor for in vivo clinical photoacoustic imaging of humans [PDF]
, 2019 In the clinical photoacoustic (PA) imaging, ultrasound (US) array transducers are typically used to provide B-mode images in real-time. To form a B-mode image, delay-and-sum (DAS) beamforming algorithm is the most commonly used algorithm because of its ...
Choi, Wonseok +5 more
core +1 more source
Passive element enriched photoacoustic computed tomography (PER PACT) for simultaneous imaging of acoustic propagation properties and light absorption\ud [PDF]
, 2011 We present a ‘hybrid’ imaging approach which can image both light absorption properties and acoustic transmission properties of an object in a two-dimensional slice using a computed tomography (CT) photoacoustic imager.
Hespen, J.C.G. van +8 more
core +10 more sources
Nature Communications, 2021 Colloidal gold nanoparticles (GNPs) serve as promising contrast agents in photoacoustic (PA) imaging, yet their utility is limited due to their absorption peak in the visible window overlapping with that of hemoglobin.
V. Nguyen +8 more
semanticscholar +1 more source