Ultrasound System
Ultrasound System - Related Videos
10:53
A Novel Application of Musculoskeletal Ultrasound Imaging
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Cited by 14 •
2013
We describe a new ultrasound-based vector tissue Doppler imaging technique to measure muscle contraction velocity, strain and strain rate with sub-millisecond temporal resolution during dynamic activities. This approach provides complementary measurements of dynamic muscle function and could lead to a better understanding of mechanisms underlying musculoskeletal disorders.
14:20
High-frequency Ultrasound Imaging of the Abdominal Aorta
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2023
Source: Amelia R. Adelsperger, Evan H. Phillips, and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana High-frequency ultrasound systems are used to acquire high resolution images. Here, the use of a state-of-the-art system will be demonstrated to image the morphology and hemodynamics of small pulsatile arteries and veins found in mice and rats. Ultrasound is a relatively inexpensive, portable, and versatile method for the noninvasive...
09:00
Murine Echocardiography and Ultrasound Imaging
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Cited by 61 •
2010
This video demonstrates use of a rail-mounted high-frequency ultrasound probe to perform echocardiography on an anesthetized mouse. The methods describe both conventional two-dimensional and M-mode measurements of cardiac function in addition to newer, more powerful tools such as color Doppler, strain analysis, as well as general and targeted contrast imaging.
05:05
Ultrasound Cyclo Plasty in Eyes with Glaucoma
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Cited by 17 •
2018
Glaucoma is a chronic disease with progressive degeneration of optic nerve fibers resulting in decreased visual field. Elevated intraocular pressure is considered the most important and the only treatable risk factor. This manuscript describes a simple, surgeon-friendly, non-incisional technique, named Ultrasound Cyclo Plasty, for reducing intraocular pressure in glaucoma patients.
08:41
Ultrasound Velocity Measurement in a Liquid Metal Electrode
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Cited by 14 •
2015
Ultrasound velocimetry is used to study mixing by fluid flow in liquid metal electrodes. The focus of this manuscript is to illustrate the methods used for making precise, spatially-resolved ultrasound measurements while limiting oxidation and controlling and monitoring temperature, applied current, and the heater power being supplied.
FAQs
A piezoelectric transducer performs both transmission and reception. It converts electrical energy into high-frequency acoustic pulses, directs those pulses through a medium, and then converts returning echoes back into electrical signals. This dual role allows one component to support inspection, measurement, or imaging without requiring direct contact with the internal features being evaluated.
These signal characteristics provide different forms of information about a material or structure. Echo timing helps indicate the location or dimensions of interfaces, while amplitude changes can reveal variations in returning signal strength. Frequency changes add information about the received response. Together, they enable quantitative analysis rather than relying only on a visual display.
Acoustic pulses travel through a medium and produce returning echoes when the system encounters relevant internal boundaries or features. The system analyzes when those echoes return, how strong they are, and how their frequency changes. Processing these responses makes it possible to identify interfaces, estimate dimensions, and characterize internal features without disassembling the structure.
An engineering workflow begins by directing acoustic pulses through the medium with a piezoelectric transducer. The same transducer receives returning echoes and converts them into electrical signals. Signal processing then examines timing, amplitude, and frequency changes, while visualization presents the results. This sequence supports inspection and measurement without destructive sampling or extensive disassembly.
Engineers use them when they need to examine materials or structures for internal problems while preserving the object being inspected. Nondestructive testing applications include detecting cracks and voids, where echo responses can indicate internal features. The approach supports rapid inspection and reduces the need for disassembly or destructive sampling during evaluation.
In engineering, these systems support industrial process monitoring and flow measurement by combining acoustic propagation with signal processing and visualization. The same underlying capabilities also extend to medical imaging. Across these settings, measurements from returning echoes can provide information about structures or processes, supporting rapid assessment and quantitative analysis without direct contact.