Transient Elastography
Transient Elastography - Related Videos
05:56
Implementation of Non-invasive Point of Care Transient Elastography for Evaluation of Liver Disease in Pediatric Populations with Cystic Fibrosis
0 Views •
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.
12:18
Magnetic Resonance Elastography Methodology for the Evaluation of Tissue Engineered Construct Growth
0 Views •
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).
03:54
Magnetic Resonance Elastography for Assessing Viscoelastic Properties
0 Views •
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...
09:59
Anisotropic Polyvinyl Alcohol Phantom Fabrication for Ultrasound Elastography: Procedure and Quality Controls
0 Views •
2026
This protocol describes a robust, reproducible method for fabricating anisotropic polyvinyl alcohol (PVA) phantoms—essential tools for validating ultrasound elastography techniques targeting mechanically anisotropic soft tissues (e.g., skeletal muscle).
01:22
Series R—L Circuit Transients
0 Views •
2024
In a series resistor-inductor (R-L) circuit, closing the switch at the start of the time period simulates a three-phase short circuit, a fault condition where all three phases of an unloaded synchronous machine are short-circuited. When there is no fault impedance and no initial current, the initial voltage is determined by the phase angle of the source voltage. Using Kirchhoff's Voltage Law (KVL) to analyze this circuit helps determine the total asymmetrical fault current, which consists of...
FAQs
The key readout is shear-wave speed: the vibration creates a wave through tissue, and ultrasound tracks how quickly that wave propagates. Faster movement corresponds to greater stiffness, so the instrument converts wave behavior into a quantitative value. This gives clinicians a measurable indicator of structural change rather than relying only on subjective examination or isolated laboratory findings.
Results can be shifted by inflammation, congestion, and other conditions, so a stiffness value should not be treated as a standalone diagnosis. Its meaning depends on the broader clinical picture, including clinical findings and laboratory data. That approach helps clinicians distinguish a measurement that supports assessment from one requiring cautious interpretation because relevant conditions may be affecting the result.
Transient elastography can reduce reliance on invasive liver biopsy by supplying a quantitative stiffness measurement without tissue removal. It is most useful as part of an assessment that also considers clinical findings and laboratory data. The technique therefore supports, rather than replaces, broader clinical judgment.
During a transient elastography examination, the device delivers a brief mechanical vibration through the skin. Ultrasound then tracks the resulting shear-wave propagation, and the system reports a quantitative stiffness measurement. Clinicians can incorporate that value with clinical findings and laboratory data when assessing liver structure and disease status.
In chronic liver disease, clinicians can use the measurements to help stage fibrosis and other structural changes, then compare values over time to monitor change. The results are most informative when integrated with clinical findings and laboratory data, allowing the technique to contribute to ongoing assessment without making the measurement the sole basis for interpretation.
Repeated measurements can show how tissue stiffness changes over time, which supports monitoring of chronic liver disease. However, interpretation still requires attention to inflammation, congestion, and other conditions that may influence results. Comparing a measurement with the patient’s clinical findings and laboratory data helps place longitudinal change in context.