Vibration Elastography
Vibration Elastography - Related Videos
03:54
Magnetic Resonance Elastography for Assessing Viscoelastic Properties
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2025
Source: Feng, Y., et al. Viscoelastic Characterization of Soft Tissue-Mimicking Gelatin Phantoms using Indentation and Magnetic Resonance Elastography. J. Vis. Exp. (2022) This video demonstrates the method of magnetic resonance elastography (MRE) for assessing tissue viscoelastic properties by analyzing shear wave propagation through a gelatin phantom, mimicking brain tissue. The process involves generating and capturing shear waves with magnetic resonance imaging or MRI and analyzing wave...
12:18
Magnetic Resonance Elastography Methodology for the Evaluation of Tissue Engineered Construct Growth
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Cited by 16 •
2012
The procedure demonstrates the methodology of magnetic resonance elastography for monitoring the engineered outcome of adipose and osteogenic tissue engineered constructs through noninvasive local assessment of the mechanical properties using microscopic magnetic resonance elastography (μMRE).
05:56
Implementation of Non-invasive Point of Care Transient Elastography for Evaluation of Liver Disease in Pediatric Populations with Cystic Fibrosis
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2025
The goal of this protocol is to showcase the technique and use of point-of-care transient elastography for pediatric gastroenterologists monitoring hepatobiliary involvement and advanced cystic fibrosis liver disease in persons with cystic fibrosis.
07:28
Measurement of Bioelectric Current with a Vibrating Probe
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Cited by 15 •
2011
The manufacture, calibration and use of non-invasive vibrating probes to measure bioelectric current in various biological systems is described.
01:19
Vibrating Concrete
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2024
Mechanical vibrators are instrumental in compacting newly poured concrete within formwork and around reinforcements. This process is essential to eliminate trapped air pockets and establish a dense concrete mass. One widely used method is vibrating by internal vibrators, often referred to as a poker vibrator or immersion vibrator. It is rapidly inserted through the full depth of the freshly laid concrete and slightly extends into the layer below it (which remains in a plastic state). Consistent...
FAQs
Controlled vibration creates a measurable mechanical response in tissue. An external source or acoustic energy perturbs the tissue, while ultrasound or another imaging signal tracks displacement and the movement of shear waves. The resulting motion provides the physical basis for estimating stiffness, allowing the examination to assess mechanical behavior rather than relying only on visual anatomy.
Wave speed and motion patterns provide complementary information about tissue mechanics. The analysis does not depend on a single visual impression; these features are converted into quantitative stiffness measurements. That numerical output can reveal mechanical differences associated with disease processes and can be interpreted alongside conventional anatomical imaging for a broader assessment.
Fibrosis, tumors, inflammation, and other disease processes can alter tissue mechanical properties, especially stiffness. Vibration Elastography measures these changes as mechanical information, which may add evidence to an assessment based on anatomy alone. Because the measured property can vary with different disease processes, stiffness findings support evaluation rather than independently identifying a single cause.
The examination applies a controlled external or acoustic vibration to the tissue, then uses ultrasound or another imaging signal to follow tissue displacement and shear-wave propagation. The recorded motion is analyzed to determine wave behavior and converted into a quantitative stiffness measurement. This sequence links the applied stimulus to a measurable mechanical result.
Medical applications described for Vibration Elastography include evaluation of the liver, breast, and thyroid. These organs may be assessed because disease-related changes can affect their mechanical properties. The technique supplies stiffness information that complements conventional anatomical imaging, helping clinicians examine tissue characteristics in addition to structure.
Quantitative stiffness information may help support diagnosis, monitor disease progression, and assess treatment response. Its value comes from adding mechanical measurements to conventional anatomical findings, rather than replacing structural imaging. Repeated or comparative assessments can therefore provide information about how tissue properties relate to an evolving disease process or changing response to therapy.