Results 131 to 140 of about 125,745 (387)
Visualization of airborne ultrasound field using thermal images [PDF]
arXiv, 2022 Thermoacoustics, the interaction between heat and acoustic waves, is used in a wide range of advanced technological applications. Conversion of ultrasound waves into heat is employed in medical applications, including tumor ablation. However, thermal responses to airborne ultrasounds have not been extensively studied.
arxiv
Phase shift nanoemulsions facilitated transcranial high intensity focused ultrasound ablation [PDF]
, 2020 This thesis aims to investigate the feasibility of using perfluorobutane phase-shift nanoemulsions (PFB PSNE) to facilitate mechanical ablation and its potential as a treatment for brain tumors.
Peng, Chenguang
core
Heart ablation using a planar rectangular high intensity ultrasound transducer and MRI guidance [PDF]
, 2012 The aim of this study was to evaluate a flat rectangular (3 × 10 mm2) MRI compatible transducer operating at 5 MHz. The main task was to explore the feasibility of creating deep lesions in heart at a depth of at least 15 mm.
Birer, A. +6 more
core +1 more source
Advanced Engineering Materials, EarlyView.In this research, ZrC coatings are evaluated against various counterprobes at the microscale using novel super‐stiff atomic force microscopy cantilevers. The chemical composition of the coating is shown to be an important factor influencing coating hardness and Young's modulus, while surface roughness, counterprobe hardness, and surface energy are the ...
Piotr Jenczyk +4 more
wiley +1 more source
Using phase data from MR temperature imaging to visualize anatomy during MRI-guided focused ultrasound neurosurgery [PDF]
arXiv, 2020 Neurosurgery targets in the thalamus can be challenging to identify during transcranial MRI-guided focused ultrasound (MRgFUS) thermal ablation due to poor image quality. They also neighbor structures that can result in side effects if damaged. Here we demonstrate that the phase data obtained during MRgFUS for MR temperature imaging (MRTI) contains ...
arxiv
Spectral imaging of thermal damage induced during microwave ablation in the liver [PDF]
, 2018 Induction of thermal damage to tissue through delivery of microwave energy is frequently applied in surgery to destroy diseased tissue such as cancer cells.
Clancy, Neil T. +6 more
core +2 more sources
Advanced Engineering Materials, EarlyView.The influence of oxide nanoparticle synthesis route and concentration on microstructure and high‐temperature performance of additively manufactured oxide dispersion‐strengthened steels is investigated. Comparing laser‐generated and chemically synthesized ZrO2 nanoparticles, the study reveals how dispersion quality, crystal structure and particle size ...
Mareen Goßling +12 more
wiley +1 more source
International Journal of Hyperthermia, 2020 Objective To evaluate the magnetic resonance (MR) signal intensity changes in the sacrococcygeal region of patients with uterine fibroids treated with high intensity focused ultrasound (HIFU).
Dandan Li, C. Gong, J. Bai, Lian Zhang
semanticscholar +1 more source
Cardiac Electrophysiological Changes during High Intensity Focused Ultrasound Ablation. [PDF]
, 2013 Atrial fibrillation (AF), the most common cardiac arrhythmia, is characterized by disorganized electrical activities that cause atrial quivering and uncoordinated contraction.
Wu, Ziqi
core
High-intensity focused ultrasound for hepatocellular carcinoma: A single-center experience [PDF]
, 2011 Objective: This study aims to evaluate the outcome of patients with hepatocellular carcinoma (HCC) treated by high-intensity focused ultrasound (HIFU) in a single tertiary referral center. Background: HIFU is the latest developed local ablation technique
Chan, SC +10 more
core +1 more source