Results 21 to 30 of about 7,841,128 (356)

Deconvolution of ultrasound images [PDF]

Ultrasonic Imaging, 1992
Based on physical models, it is indicated that the received pressure field in ultrasound B-mode images can be described by a convolution between a tissue reflection signal and the emitted pressure field. This result is used in a description of current image formation and in formulating a new processing scheme.
openaire   +3 more sources

Ultrasound Imaging [PDF]

, 2022
Ultrasound Imaging - Current Topics presents complex and current topics in ultrasound imaging in a simplified format. It is easy to read and exemplifies the range of experiences of each contributing author.

core   +1 more source

Predictive Value of the Transthoracic Echocardiography Index for Acute Kidney Injury after Cardiac Valve Surgery

Journal of Cardiovascular Development and Disease, 2022
Background: We aimed to demonstrate whether the preoperative transthoracic echocardiography index (TTEI) could improve the predictive value of clinical parameters for cardiac valve surgery-associated acute kidney injury (CVS−AKI). Methods: A total of 213
Juan Guo, Yugang Hu, Sheng Cao, Chuangli Feng, Xin Huang, Qing Zhou   +5 more
doaj   +1 more source

Ultrasound Tongue Imaging [PDF]

, 2021
Ultrasound has been used as a diagnostic medical tool since 1956. In 1969 Kelsey, Minifie and Hixon proposed using ultrasound to image the tongue (Ultrasound Tongue Imaging: UTI) as a safer alternative to x-ray imaging for viewing the articulators in both typical and disordered speech production.
openaire   +2 more sources

Acoustic Biosensors for Ultrasound Imaging of Enzyme Activity

Nature Chemical Biology, 2020
Visualizing biomolecular and cellular processes inside intact living organisms is a major goal of chemical biology. However, existing molecular biosensors, based primarily on fluorescent emission, have limited utility in this context due to the ...
Anupama Lakshmanan, Zhiyang Jin, Suchita P. Nety, Daniel P. Sawyer, A. Lee-Gosselin, Dina Malounda, Mararet B. Swift, D. Maresca, Mikhail G. Shapiro   +8 more
semanticscholar   +1 more source

Cardiovascular molecular imaging [PDF]

, 2013
Although there have been significant improvements in the treatment of cardiovascular diseases they still remain the main cause of morbidity and mortality globally. Currently available diagnostic approaches may not be adequate to detect pathologic changes
Khanicheh, Elham
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Amplified antitumor efficacy by a targeted drug retention and chemosensitization strategy-based “combo” nanoagent together with PD-L1 blockade in reversing multidrug resistance

Journal of Nanobiotechnology, 2021
Background Recent studies have demonstrated that multidrug resistance (MDR) is a critical factor in the low efficacy of cancer chemotherapy. The main mechanism of MDR arises from the overexpression of P-glycoprotein (P-gp), which actively enhances drug ...
Weixi Jiang, Lei Su, Meng Ao, Xun Guo, Chen Cheng, Yuanli Luo, Zhuoyan Xie, Xingyue Wang, Junrui Wang, Shuling Liu, Yang Cao, Pan Li, Zhigang Wang, Haitao Ran, Zhiyi Zhou, Jianli Ren   +15 more
doaj   +1 more source

Morphological Evaluation of Mitral Valve Based on Three-dimensional Printing Models: Potential Implication for Mitral Valve Repair

BIO Integration, 2021
Objective: This study aimed to analyze the morphological characteristics of rheumatic (RMVD) and degenerative mitral valve diseases (DMVD) based on three-dimensional (3D) printing model before and after surgery and to explore the potential implication of
Yuanting Yang, Hao Wang, Hongning Song, Yugang Hu, Qincheng Gong, Ye Xiong, Junbi Liu, Wei Ren, Qing Zhou   +8 more
doaj   +1 more source

Photochemically-driven highly efficient intracellular delivery and light/hypoxia programmable triggered cancer photo-chemotherapy

Journal of Nanobiotechnology, 2023
Background Using nanotechnology to improve the efficiency of tumor treatment represents a major research interest in recent years. However, there are paradoxes and obstacles in using a single nanoparticle to fulfill all the requirements of complex tumor ...
Wei Zhang, Cuncheng Zhang, Chao Yang, Xingyue Wang, Weiwei Liu, Mi Yang, Yang Cao, Haitao Ran   +7 more
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Laser-activated nanoparticles for ultrasound/photoacoustic imaging-guided prostate cancer treatment

Frontiers in Bioengineering and Biotechnology, 2023
Prostate cancer (PCa) is the most common malignant tumor in men. Prostate-specific membrane antigen (PSMA), which is overexpressed on the surface of Prostate cancer cells, may serve as a potential therapeutic target.
Linkang Xiao, Linkang Xiao, Yunfang Wu, Yunfang Wu, Junyong Dai, Junyong Dai, Weili Zhang, Yang Cao   +7 more
doaj   +1 more source