Results 1 to 10 of about 6,675 (237)

Nonlinear mechanisms in photoacoustics—Powerful tools in photoacoustic imaging

Photoacoustics, 2021
Many nonlinear effects have been discovered and developed in photoacoustic imaging. These nonlinear mechanisms have been explored for different utilizations, such as enhancing imaging contrast, measuring tissue temperature, achieving super-resolution ...
Rongkang Gao, Zhiqiang Xu, Yaguang Ren, Liang Song, Chengbo Liu   +4 more
doaj   +4 more sources

Revealing hidden tissue architecture with mid-infrared dichroism photoacoustic microscopy [PDF]

Light: Science & Applications
By combining mid-infrared excitation with polarization-resolved photoacoustics, Park et al. introduce a novel label-free approach to visualize both molecular composition and fiber alignment in engineered tissues.
Colton McGarraugh, Soon-Woo Cho, Junjie Yao   +2 more
doaj   +2 more sources

Initial results of in vivo non-invasive cancer imaging in the human breast using near-infrared photoacoustics [PDF]

, 2007
Near-infrared photoacoustic images of regions-of-interest in 4 of the 5 cases of patients with symptomatic breasts reveal higher intensity regions which we attribute to vascular distribution associated with cancer.
Engh, Frank M. van den, Hespen, Johan C.G. van, Klaase, Joost M., Leeuwen, Ton G. van, Manohar, Srirang, Steenbergen, Wiendelt, Vaartjes, Susanne E.   +6 more
core   +14 more sources

State-of-the-Art Approaches for Image Deconvolution Problems, including Modern Deep Learning Architectures

Micromachines, 2021
In modern digital microscopy, deconvolution methods are widely used to eliminate a number of image defects and increase resolution. In this review, we have divided these methods into classical, deep learning-based, and optimization-based methods.
Mikhail Makarkin, Daniil Bratashov
doaj   +1 more source

Advanced Ultrasound and Photoacoustic Imaging in Cardiology

Sensors, 2021
Cardiovascular diseases (CVDs) remain the leading cause of death worldwide. An effective management and treatment of CVDs highly relies on accurate diagnosis of the disease.
Min Wu, Navchetan Awasthi, Nastaran Mohammadian Rad, Josien P. W. Pluim, Richard G. P. Lopata   +4 more
doaj   +1 more source

Ultrasound-Based Fluid-Structure Interaction Modeling of Abdominal Aortic Aneurysms Incorporating Pre-stress

Frontiers in Physiology, 2021
Currently, the prediction of rupture risk in abdominal aortic aneurysms (AAAs) solely relies on maximum diameter. However, wall mechanics and hemodynamics have shown to provide better risk indicators.
Judith H. C. Fonken, Judith H. C. Fonken, Esther J. Maas, Esther J. Maas, Arjet H. M. Nievergeld, Arjet H. M. Nievergeld, Marc R. H. M. van Sambeek, Marc R. H. M. van Sambeek, Frans N. van de Vosse, Richard G. P. Lopata   +9 more
doaj   +1 more source

Local and global distensibility assessment of abdominal aortic aneurysms in vivo from probe tracked 2D ultrasound images

Frontiers in Medical Technology, 2023
Rupture risk estimation of abdominal aortic aneurysm (AAA) patients is currently based on the maximum diameter of the AAA. Mechanical properties that characterize the mechanical state of the vessel may serve as a better rupture risk predictor.
Larissa C. Jansen, Larissa C. Jansen, Hans-Martin Schwab, Frans N. van de Vosse, Marc R. H. M. van Sambeek, Marc R. H. M. van Sambeek, Richard G. P. Lopata   +6 more
doaj   +1 more source

The Feasibility of Dynamic Musculoskeletal Function Analysis of the Vastus Lateralis in Endurance Runners Using Continuous, Hands-Free Ultrasound

Applied Sciences, 2021
Dynamic imaging of the skeletal muscles used to be strenuous and often impossible to perform manually. Accordingly, long-term dynamic musculoskeletal imaging has not been performed. The feasibility of long-term dynamic musculoskeletal functional analysis
Marloes Sjoerdsma, Cristina Caresio, Benjamin Tchang, Amber Meeder, Frans van de Vosse, Richard Lopata   +5 more
doaj   +1 more source

Non-Invasive Evaluation of Acute Effects of Tubulin Binding Agents: A Review of Imaging Vascular Disruption in Tumors

Molecules, 2021
Tumor vasculature proliferates rapidly, generally lacks pericyte coverage, and is uniquely fragile making it an attractive therapeutic target. A subset of small-molecule tubulin binding agents cause disaggregation of the endothelial cytoskeleton leading ...
Li Liu, Devin O’Kelly, Regan Schuetze, Graham Carlson, Heling Zhou, Mary Lynn Trawick, Kevin G. Pinney, Ralph P. Mason   +7 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, Jeon, Seungwan, KIM, CHULHONG, Lee, Ki Jong, Managuli, Ravi, Park, Eun-Yeong   +5 more
core   +1 more source