Results 11 to 20 of about 589,315 (370)

Picosecond ultrasonics for elasticity-based imaging and characterization of biological cells

Journal of Applied Physics, 2020
Characterization of the elasticity of biological cells is growing as a new way to gain insight into cell biology. Cell mechanics are related to most aspects of cellular behavior, and applications in research and medicine are broad.
F. Pérez-Cota, Rafael Fuentes-Domínguez, Salvatore La Cavera, William Hardiman, Mengting Yao, Kerry Setchfield, E. Moradi, Shakila Naznin, A. Wright, Kevin Francis Webb, A. Huett, Claire T. Friel, V. Sottile, H. Elsheikha, Richard J. Smith, M. Clark   +15 more
semanticscholar   +1 more source

A prognostic nomogram for intrahepatic progression-free survival in patients with colorectal liver metastases after ultrasound-guided percutaneous microwave ablation

International Journal of Hyperthermia, 2022
Purpose The present study identified predictors of intrahepatic progression-free survival (ihPFS) after ultrasound (US)-guided percutaneous microwave ablation (MWA) for colorectal liver metastases (CRLMs) and developed a nomogram to predict ihPFS ...
Si Qin, Huabin Hu, Rui Cui, Jing Lin, Yiming Liu, Yimin Wang, Yao Chen, Guangjian Liu   +7 more
doaj   +1 more source

Efficacy and safety of percutaneous ultrasound-guided microwave ablation for cervical metastatic lymph nodes from papillary thyroid carcinoma

International Journal of Hyperthermia, 2020
Purpose Our purpose is to assess the efficacy and safety of percutaneous US-guided microwave ablation (MWA) for cervical metastatic lymph nodes from papillary thyroid carcinomas (PTC). Methods In total, 37 patients with 98 cervical metastatic lymph nodes
Zhi-Yu Han, Jian-Ping Dou, Zhi-Gang Cheng, Fang-Yi Liu, Jie Yu, Xiao-Ling Yu, Ping Liang   +6 more
doaj   +1 more source

Intensity-adjustable pain management with prolonged duration based on phase-transitional nanoparticles-assisted ultrasound imaging-guided nerve blockade

Journal of Nanobiotechnology, 2022
Background The lack of a satisfactory strategy for postoperative pain management significantly impairs the quality of life for many patients. However, existing nanoplatforms cannot provide a longer duration of nerve blockage with intensity-adjustable ...
Bin Qiao, Xinye Song, Weiyi Zhang, Ming Xu, Bowen Zhuang, Wei Li, Huanling Guo, Wenxin Wu, Guangliang Huang, Minru Zhang, Xiaoyan Xie, Nan Zhang, Yong Luan, Chunyang Zhang   +13 more
doaj   +1 more source

Characterization of GMAW (Gas Metal Arc Welding) Penetration Using Ultrasonics

Materials, 2020
Welding defects such as lack of penetration, undercutting, crater crack, burn-through and porosity can occur during manufacturing. Assessing weld quality using nondestructive evaluation methods is important for the quality assurance of welded parts.
Lu Zhang, G. Okudan, Alexandra-Del-Carmen Basantes-Defaz, Ryan M Gneiting, S. Subramaniam, D. Ozevin, E. Indacochea   +6 more
semanticscholar   +1 more source

High Frequency Elastic Coupling at the Interface of van der Waals Nanolayers Imaged by Picosecond Ultrasonics.

ACS Nano, 2019
Although the topography of van de Waals (vdW) layers and heterostructures can be imaged by scanning probe microscopy, high-frequency interface elastic properties are more difficult to assess. These can influence the stability, reliability and performance
J. D. Greener, Elton de Lima Savi, A. Akimov, S. Raetz, Z. Kudrynskyi, Z. Kovalyuk, N. Chigarev, A. Kent, A. Patané, V. Gusev   +9 more
semanticscholar   +1 more source

Myocardial contrast echocardiography in the diagnosis of postoperative takotsubo myocardiopathy: case report and literature review

BMC Cardiovascular Disorders, 2019
Background Takotsubo cardiomyopathy (TCM) is a brief ventricular dysfunction that usually occurs after emotional or physical stress. Here, we report a patient who underwent cardiac surgery and then developed TCM during the postoperative period.
Jia-Hui Zeng, Wei Li, Feng-Juan Yao, Dong-Hong Liu, Cui-Ling Li, Yan-Qiu Liu, Rui Fan, Min Ye, Hong Lin   +8 more
doaj   +1 more source

An Ultrasonic Levitator

Journal of Applied Research and Technology, 2013
AbstractWe report the development of an ultrasonic levitation system. Liquid drops or solid samples of diameter less than one half wavelength of the excitation frequency are levitated without contact just below the pressure nodes. The piezo transducer is excited by an ultrasonic signal of around 29kHz through a voltage amplifier.
R. R. Boullosa, A. Pérez-López, R. Dorantes-Escamilla   +2 more
openaire   +3 more sources

Ultrasound-Based Radiomics Analysis for Preoperatively Predicting Different Histopathological Subtypes of Primary Liver Cancer

Frontiers in Oncology, 2020
BackgroundPreoperative identification of hepatocellular carcinoma (HCC), combined hepatocellular–cholangiocarcinoma (cHCC-ICC), and intrahepatic cholangiocarcinoma (ICC) is essential for treatment decision making.
Yuting Peng, Peng Lin, Linyong Wu, Da Wan, Yujia Zhao, Li Liang, Xiaoyu Ma, Hui Qin, Yichen Liu, Xin Li, Xinrong Wang, Yun He, Hong Yang   +12 more
doaj   +1 more source

The radiation mode theory in ultrasonics [PDF]

, 2005
A
BRIERS, R, Declercq, Nico, Degrieck, Joris, Leroy, O, SHKERDIN, GN   +4 more
core   +2 more sources