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Ultrasonic Waves

Ultrasonic waves are high-frequency sound waves that travel through materials, often used in medical imaging, industrial cleaning, and nondestructive testing.
These waves can be generated and detected using specialized transducers, and their propagation and reflection properties provide valuable information about the material they interact with.
Researchers can explore the power of ultrasonic waves using PubCompare.ai, an AI-driven platform that optimizes research protocols for reproducibility and accuracy.
PubCompare.ai helps uncover the best protocols and products from literature, pre-prints, and patents, streamlining research and ensuring reliable results.
Discover the full potential of ultrasonic waves with PubCompare.ai's intelligent comparison tools.

Most cited protocols related to «Ultrasonic Waves»

To demonstrate the potential clinical application of contrast-free quantitative ultrasound microvasculature imaging, we performed the technique on a group of patients with suspicious breast lesions or thyroid nodules. Before quantifying vessel morphological features from ultrasound microvasculature images, one must perform multiple preprocessing steps. The first step is image formation, which reconstructs the microvasculature image from a sequence of plane wave ultrasound images [20 (link)]. Second, vessel filtering is used to enhance the structure of vessels and provide adequate background separation for segmentation. Morphological filtering, vessel segmentation, and skeletonization occur last. The main contribution of this paper is in the use of spectral filtering, vessel segmentation, filtering and vessel quantification.
Publication 2020
Blood Vessel Breast microvasculature Patients Thyroid Nodule Ultrasonics Ultrasonic Waves
The following procedure was followed for urethane rubber plates, gelatin plates and excised porcine LV free-wall myocardium samples. The samples were embedded in a gelatin mixture (80% water, 10% glycerol, 10% 300 Bloom gelatin, all by volume and 10 g/L potassium sorbate preservative, all manufactured by Sigma-Aldrich, St. Louis, MO) inside a plastic container. The container was mounted on a stand (not shown) in a water tank (Figure 3a). A window was cut out on the bottom of the container to allow for pulse-echo ultrasound measurements for motion detection. The gelatin was used as a stabilizer and was contained to the edges to minimize the affect of mechanical coupling. A mechanical shaker (V203, Ling Dynamic Systems Limited, Hertfordshire, UK) was used instead of a push transducer (Figure 3a) in order to ensure large motion and avoid ultrasound wave interference. A glass rod coupled with the shaker was glued to the hole bored through the thickness of the sample. Four cycles of sinusoidal waves were used to drive the shaker at different frequencies ranging from 40 to 500 Hz to induce cylindrical shear waves in the samples. More Lamb wave speed measurements were made below 200 Hz since the Lamb wave curve plateaus at higher frequencies and the lower frequencies provide more insight into the curvature of the Lamb wave dispersion. The motion of the shaker was parallel to the rod and the maximum amplitude of the displacement was on the order of tens of micrometers near the rod and exponentially decaying with distance (Figure 3a). At each excitation frequency, motion along the z-axis was measured at 31 points, 0.5 mm apart along the r-axis where
r=x2+y2 , using a 5 MHz pulse-echo transducer with a pulse repetition rate of 4 kHz. Phase measurements at these points were used to fit a regression curve and calculate the Lamb wave speed at each frequency, as described in the SDUV methods [21 (link), 22 (link)]. The pulse-echo transducer was mounted on a robotic arm capable of micrometer size steps in three Cartesian directions. The robotic arm was used to move the transducer in four orthogonal directions in the r-plane at each excitation frequency (Figure 3a). For simplicity, we will refer to the four orthogonal directions in the r-plane at 0, π/2, π and 3π/2 radians as +x, +y, −x and −y directions. The long axis of the plate shaped samples was aligned parallel to the x-axis.
Publication 2011
ECHO protocol Epistropheus Gelatins Glycerin High Frequency Waves liposomal amphotericin B Myocardium Pharmaceutical Preservatives Pigs Pulse Rate Rubber Sinusoidal Beds Sorbate, Potassium Toxic Epidermal Necrolysis Transducers Ultrasonics Ultrasonic Waves Urethane
An ultrasound shear wave elastography system (Aixplorer Supersonic Imagine, France) with a 40 mm linear array transducer (SL10-2, Supersonic Imagine, France) was used. The settings of the SWE system were set as follows: the instrument was set in the musculoskeletal mode. The frequency was 2~10 MHz. The SWE Opt was the penetration mode. The opacity was 85%. The elastic modulus range of the gastrocnemius was 0~200 kPa, while the elastic modulus range of the Achilles tendon was 0~800 kPa. The color scale used in the shear modulus (in kPa) showed the lowest values in blue to the highest values in red. The depth of the B-scan was 3.0 cm [30 (link)]. For the Achilles tendon, the size of the regions of interest (ROI) had to be set to 25∗12 mm and the Q-Box™ diameter was defined by the thickness of the tendon, which was the distance between the superior and inferior borders of the Achilles tendon [23 (link)]. For the MG and LG, the size of the ROI had to be set to 10∗10 mm and the diameter of the Q-Box™ is 5∗5 mm [31 (link)]. The transducer was positioned along the longitudinal axis of the AT, MG, and LG.
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Publication 2019
Epistropheus Muscle, Gastrocnemius Radionuclide Imaging Sonoelastography Tendon, Achilles Tendons Transducers Ultrasonic Waves
A single element ultrasound transducer (H115-MR, diameter 64 mm, Sonic Concept, Bothell, WA, USA) with 51.74 mm focal depth was used with a coupling cone filled with degassed water and sealed with a latex membrane (Durex). The resonance frequency of the ultrasonic wave was set at 250 kHz with 30 ms bursts of ultrasound generated every 100 ms, controlled through a digital function generator (Handyscope HS5, TiePie engineering, Sneek, The Netherlands). The stimulation lasted for 40 s. A 75-Watt amplifier (75A250A, Amplifier Research, Souderton, PA) was used to deliver the required power to the transducer. A TiePie probe (Handyscope HS5, TiePie engineering, Sneek, The Netherlands) connected to an oscilloscope was used to monitor the voltage delivered. The recorded peak-to-peak voltage was kept constant throughout the stimulation. Voltage values per session ranged from 130 to 142 V, corresponding to 1.17 to 1.35 MPa as measured in water with an in house heterodyne interferometer (Constans et al., 2017 (link)). Based on numerical simulations (see Acoustic and thermal modelling below for more details), the maximum peak pressure (Pmax) and Isppa at the acoustic focus point were estimated to be 0.88 MPa and 24.1 W/cm2 for the SMA target, and 1.01 MPa and 31.7 W/cm2 for the FPC target (Ispta: 7.2 W/cm2 and 9.5 W/cm2 for SMA and FPC, respectively). Each of the areas targeted in experiments 1–4 lie close to the midline. Therefore, we applied a single train over the midline stimulating the target region in both hemispheres simultaneously.
In order to direct TUS to the target region, we guided the stimulation using a frameless stereotaxic neuronavigation system (Rogue Research, Montreal, CA; RRID:SCR_009539) set up for each animal individually by registering a T1-weighted MR image to the animal’s head. Positions of both the ultrasound transducer and the head of the animal were tracked continuously with infrared reflectors to inform online and accurate positioning of the transducer over the targeted brain region: SMA in experiment 1, (Montreal Neurological Institute (MNI) X, Y, and Z coordinates in mm [0.1 2 19]); FPC in experiment 2 [0.6 24 10]; FPC in experiment 3 [-0.7 24 11]; pre-SMA in experiment 4 [0.2 11 17]. The ultrasound transducer/coupling cone montage was placed directly onto previously shaved skin prepared with conductive gel (SignaGel Electrode; Parker Laboratories Inc.) to ensure ultrasonic coupling between the transducer and the animal's scalp. In the non-stimulation condition (control), all procedures (anaesthesia, pre-scan preparation, fMRI scan acquisition and timing), with the exception of actual TUS, matched the TUS sessions.
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Publication 2019
Acoustics Anesthesia Animals Brain Electric Conductivity Fingers fMRI Head Latex Neuronavigation Pressure Radionuclide Imaging Retinal Cone Scalp Skin Tissue, Membrane Transducers Ultrasonics Ultrasonic Waves Vibration
Ultrasound imaging can provide measurements of the incremental vessel wall displacement along a ~30mm field of view. Plane wave ultrasound imaging with beamforming allows a framerate of up to 8000 Hz to be achieved with 128 scan lines, which corresponds to 1,024,000 wall displacement measurements per second, making it an ideal application for a model-fitting inverse problem. A schematic of the process for pulse wave imaging is given in figure 1. In an experiment, wall displacements and/or fluid velocities resulting from the pulsatile flow are recorded, which carry information about the unknown parameters of interest (in this case, the vessel stiffness). An estimate of these unknown parameters is then used in a parameterized computational model to produce displacements and velocities analogous to the measured data, and a cost function is evaluated to determine the mismatch between the model and measurements. The parameters are then iteratively updated until the cost function is minimized. Assuming the model is a reasonably good match to the experimental system, the final model parameters should be a good estimate of the true parameters. Simulated data sampled at a typical measurement resolution can be used in place of experimental data to verify that the algorithm works under ideal conditions, and investigate the sensitivity of the algorithm to conditions such as noise or changes in resolution.
Publication 2016
Blood Vessel Displacement, Psychology Hypersensitivity Pulsatile Flow Pulse Rate Radionuclide Imaging Ultrasonic Waves Vascular Stiffness

Most recents protocols related to «Ultrasonic Waves»

Example 7

Since the genetic material may be delivered by the exosomes, it has been hypothesized that the exosomes secreted from the cells cultured in a human ES medium may change the properties of surrounding cells or untreated cells. To verify this, the exosomes were extracted from the 2-day cultured medium of cells treated with ultrasonic wave cultured in the human ES medium environment, and the exosome extract was mixed and cultured for 6 days in a process of culturing the untreated cells in the human ES medium and a fibroblast culture medium, DMEM.

As a result, spheroid was produced in a group added with exosomes (FIG. 7A), and as a result of verifying the Oct4 expression in the cells, the expression of a pluripotent marker, Oct4, was observed (FIG. 7B). This indicates that the delivery of the genetic material by the exosomes may induce the cell reprogramming.

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Patent 2024
Cell Culture Techniques Culture Media Exosomes Fibroblasts Genetic Materials Homo sapiens Human Embryonic Stem Cells Obstetric Delivery Physical Stimulation POU5F1 protein, human Ultrasonic Waves
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Example 1

Three tissue samples were prepared by adding approximately 100 mg of liver tissue to a petri dish to which 250 μL Rosewell Park Memorial Institute (RPMI) medium was added. The liver tissue sample was minced to tissue pieces about 1 mm3 to about 3 mm3 in size. Tissue sample was transferred to a sample tube. The sample tube was positioned over a transducer with 4 independently operable FASA elements having a 90° angle arranged in a circular pattern having a diameter of approximately 9 mm. water bath (i.e., coupling fluid) controlled the sample temperature by setting a chiller to 25° C. The FASA elements were activated by applying RF energy to the FASA elements so that bulk lateral ultrasonic (BLU) energy is applied to the sample. Three of the four FASA elements were activated at any given time point, within the inactive FASA element rotating clockwise.

After applying the ultrasonic waves to the samples, the samples were passed through a 70 μm cell strainer, and 10 μL of the filtrate was visualized under a microscope. The high ultrasonic wave pulse frequency and a prolonged duration of the application of the ultrasonic waves resulted in cell lysis. Lower pulse frequency at a shorter duration, however, resulted in viable cells.

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Patent 2024
Bath Biopharmaceuticals Cells Dietary Fiber Hyperostosis, Diffuse Idiopathic Skeletal Liver Microscopy Tissues Transducers Ultrasonics Ultrasonic Waves

Fig. 1 illustrates the graphene/iron oxide composite fabrication model. Accordingly, the entire two electrode electrochemical system includes a cathodic graphite rod and anodic platinum foils set into a flask of electrolyte solution which is placed in an ultrasonic vibrating tank. In the meantime, the mixture of Fe2(SO4)3·xH2O (7.99 g) and FeSO4·7H2O (2.78 g) was dissolved in 150 mL of distilled water. We maintained this mixture solution at 60 °C for 30 min under a slight stirring level of 100 RPM. First, the sharpened graphite rod is located about 1 mm to 2 mm above the electrolyte solution level. The anode platinum foil was embedded at 5 cm depth in the electrolyte solution. The using electrolyte solution is 200 mL NaOH 0.5 M. Secondly, a direct current (DC) source with a voltage of 120 V was applied to two electrodes. The sharpened tip of the graphite rod was descended gradually into electrolytes which induced the plasma zone at the electrolyte touching position under the high asymmetric electric field. Then, the mixture solution of Fe3+ and Fe2+ was slowly added to the electrolyte solution at a drop rate of 2 mL min−1 when the plasma discharge and ultrasonic vibration were performing. The composites materials of GFs were simultaneously generated by the flow of electrons from the negative electrode to be discharged directly and the solution plasma conditions. This experiment was performed in 75 min. The as-prepared materials were collected by the filtration system using the PVDF membrane with the pore size of 0.2 μm. The resulting powder was washed in distilled water at least 3 times and then dried 24 hours at 80 °C in air. The obtained composite material is denoted as GF and using for further characterization.
Publication 2023
Electricity Electrolytes Electrons ferric oxide Filtration Graphene graphene oxide Graphite Iron Plasma Platinum polyvinylidene fluoride Powder Tissue, Membrane Ultrasonics Ultrasonic Waves
The ultrasound microvascular real-time imaging was established using a novel technology of the Mindray Resona R9 ultrasound imaging platform. Benefitting from the CPU/GPU processing performance of the Resona R9 platform, UMA acquires high-quality raw ultrasonic signals through the ultrasonic plane wave/divergent wave (hereinafter referred to as plane wave) at high efficiency and utilizes an advanced tissue-rejection algorithm to intelligently remove tissue clutter from raw signals. These two core techniques allow UMA to break through the technical bottleneck of traditional Color Doppler Flow Imaging, that greatly improving the sensitivity and spatial resolution of blood flow detection, and visualizes microvascular architecture undetectable by traditional CDFI.
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Publication 2023
Blood Circulation Cluttering Hypersensitivity Tissues Ultrasonic Shockwave Ultrasonic Waves

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Publication 2023
Emulsions Soybean oil Titanium Ultrasonic Shockwave Ultrasonic Waves

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More about "Ultrasonic Waves"

Ultrasonic waves, also known as acoustic waves or sound waves, are high-frequency vibrations that travel through solid, liquid, and gaseous materials.
These versatile waves have a wide range of applications, from medical imaging and industrial cleaning to nondestructive testing and materials analysis.
In the field of medical diagnostics, ultrasonic waves are widely used in equipment such as the Aplio 500 and other advanced imaging systems.
These waves can penetrate the body and reflect off internal structures, providing detailed information about organs, tissues, and blood flow.
Researchers can explore the potential of these waves using cutting-edge platforms like PubCompare.ai, which helps optimize research protocols for reproducibility and accuracy.
Beyond healthcare, ultrasonic waves have numerous industrial applications.
The Vibra S60 and similar devices utilize these waves for efficient cleaning and decontamination, while the S-4800 scanning electron microscope leverages them for high-resolution imaging.
In materials science, the JEM-1011 transmission electron microscope and other specialized equipment employ ultrasonic waves for nondestructive testing and characterization.
Generating and detecting ultrasonic waves requires specialized transducers, which convert electrical signals into mechanical vibrations and vice versa.
The propagation and reflection of these waves provide valuable insights about the materials they interact with, enabling researchers to explore a wide range of phenomena, from the structure of biological cells (as seen with the Agilent 2100 Bioanalyzer) to the composition of complex materials.
To streamline research and ensure reliable results, scientists can leverage the power of AI-driven platforms like PubCompare.ai.
This innovative tool helps researchers uncover the best protocols and products from literature, preprints, and patents, optimizing their workflows and maximizing the potential of ultrasonic waves.
With features like the VCX 750 ultrasonic processor and the HiSeq 4000 sequencing system, researchers can delve deeper into the fascinating world of acoustic waves and unlock new discoveries.
Whether you're working in the medical, industrial, or scientific field, understanding the versatility and power of ultrasonic waves is key to driving innovation and pushing the boundaries of what's possible.
Explore the full potential of these remarkable waves with the help of cutting-edge tools and technologies.