Results 51 to 60 of about 989,563 (206)
Photoacoustic Microscopy and Computed Tomography: From Bench to Bedside [PDF]
Annual Review of Biomedical Engineering, 2014 Photoacoustic imaging (PAI) of biological tissue has seen immense growth in the past decade, providing unprecedented spatial resolution and functional information at depths in the optical diffusive regime. PAI uniquely combines the advantages of optical excitation and those of acoustic detection.
Wang, Lihong V., Gao, Liang
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Review of Photoacoustic Imaging for Imaging-Guided Spinal Surgery [PDF]
Neurospine, 2018 This review introduces the current technique of photoacoustic imaging as it is applied in imaging-guided surgery (IGS), which provides the surgeon with image visualization and analysis capabilities during surgery.
Seung Hee Han
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Multiple passive element enriched photoacoustic computed tomography [PDF]
Optics Letters, 2011 Recently, we presented a method using laser-induced ultrasound from an external absorber (passive element) to image the ultrasound transmission parameters of an object under photoacoustic tomographic investigation. The method suffers from long measurement times due to the requirement for a large number of views and consequently physical projections ...
Resink, S. +6 more
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Universal back-projection algorithm for photoacoustic computed tomography [PDF]
Physical Review E, 2005 We report results of a reconstruction algorithm for three-dimensional photoacoustic computed tomography. A universal back-projection formula is presented for three types of imaging geometries: planar, spherical, and cylindrical surfaces. A solid-angle weighting factor is introduced in the back-projection formula to compensate for the variations of ...
Xu, Minghua, Wang, Lihong V.
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Computed tomography-osteoabsorptiometry for assessing the density distribution of subchondral bone as a measure of long-term mechanical adaptation in individual joints [PDF]
, 1989 To estimate subchondral mineralisation patterns which represent the long-term loading history of individual joints, a method has been developed employing computed tomography (CT) which permits repeated examination of living joints.
Müller-Gerbl, Magdalena +4 more
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3D Photoacoustic Tomography System Based on Full-View Illumination and Ultrasound Detection
Applied Sciences, 2019 A 3D photoacoustic computed tomography (3D-PACT) system based on full-view illumination and ultrasound detection was developed and applied to 3D photoacoustic imaging of several phantoms.
Mingjian Sun +5 more
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Cyclodextrin-Based Contrast Agents for Medical Imaging
Molecules, 2020 Cyclodextrins (CDs) are naturally occurring cyclic oligosaccharides consisting of multiple glucose subunits. CDs are widely used in host–guest chemistry and biochemistry due to their structural advantages, biocompatibility, and ability to form inclusion ...
Yurii Shepelytskyi +6 more
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The sparse array elements selection in sparse imaging of circular-array photoacoustic tomography
Journal of Innovative Optical Health Sciences, 2022 Photoacoustic imaging (PAI) has been developed, and photoacoustic computed tomography (PACT) is widely used for in vivo tissue and mouse imaging. Simulated annealing (SA) algorithm solves optimization problems, and compressed sensing (CS) recovers sparse
Zezheng Qin +4 more
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Initial results of finger imaging using photoacoustic computed tomography [PDF]
Journal of Biomedical Optics, 2014 We present a photoacoustic computed tomography investigation on a healthy human finger, to image blood vessels with a focus on vascularity across the interphalangeal joints. The cross-sectional images were acquired using an imager specifically developed for this purpose.
van Es, Peter +4 more
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Sensors, 2019 Photoacoustic imaging (PAI) is an emerging imaging technique that bridges the gap between pure optical and acoustic techniques to provide images with optical contrast at the acoustic penetration depth.
Jasmine Chan +5 more
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