Results 1 to 10 of about 3,766 (264)

Methodology of Pulsed Photoacoustics and Its Application to Probe Photosystems and Receptors

Sensors, 2010
We review recent advances in the methodology of pulsed time-resolved photoacoustics and its application to studies of photosynthetic reaction centers and membrane receptors such as the G protein-coupled receptor rhodopsin.
Harvey J M Hou, Thomas P Sakmar, Sakmar Thomas P   +2 more
exaly   +5 more sources

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

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

Annular Fiber Probe for Interstitial Illumination in Photoacoustic Guidance of Radiofrequency Ablation

Sensors, 2021
Unresectable liver tumors are commonly treated with percutaneous radiofrequency ablation (RFA). However, this technique is associated with high recurrence rates due to incomplete tumor ablation. Accurate image guidance of the RFA procedure contributes to
Hindrik Kruit, Kalloor Joseph Francis, Elina Rascevska, Srirang Manohar   +3 more
doaj   +1 more source

Improving PMUT Receive Sensitivity via DC Bias and Piezoelectric Composition

Sensors, 2022
The receive sensitivity of lead zirconate titanate (PZT) piezoelectric micromachined ultrasound transducers (PMUTs) was improved by applying a DC bias during operation.
Christopher Cheng, Travis Peters, Ajay Dangi, Sumit Agrawal, Haoyang Chen, Sri-Rajasekhar Kothapalli, Susan Trolier-McKinstry   +6 more
doaj   +1 more source

New Frontiers in Diagnosis and Therapy of Circulating Tumor Markers in Cerebrospinal Fluid In Vitro and In Vivo

Cells, 2019
One of the greatest challenges in neuro-oncology is diagnosis and therapy (theranostics) of leptomeningeal metastasis (LM), brain metastasis (BM) and brain tumors (BT), which are associated with poor prognosis in patients.
Olga A. Sindeeva, Roman A. Verkhovskii, Mustafa Sarimollaoglu, Galina A. Afanaseva, Alexander S. Fedonnikov, Evgeny Yu. Osintsev, Elena N. Kurochkina, Dmitry A. Gorin, Sergey M. Deyev, Vladimir P. Zharov, Ekaterina I. Galanzha   +10 more
doaj   +1 more source