Related Experiment Video
Updated: Jan 27, 2026
07:13
Application of Ultrasound and Shear Wave Elastography Imaging in a Rat Model of NAFLD/NASH
Published on: April 20, 2021
4.5K
Reliability Indicators for 2-Dimensional Shear Wave Elastography.
Sandra O'Hara1,2, Marilyn Zelesco3, Karen Rocke1
1SKG Radiology, Subiaco, Perth, Western Australia, Australia.
Summary
Two-dimensional shear wave elastography (SWE) on ultrasound systems can be affected by artifacts. Analyzing precision maps and standard deviation is crucial for accurate shear wave speed to pressure conversion.
Area of Science:
- Medical Imaging
- Biophysics
- Ultrasound Technology
Background:
- Ultrasound (US) systems offer either point shear wave elastography (SWE) or 2-dimensional SWE.
- 2D-SWE allows interrogation of larger regions, but is susceptible to US artifacts affecting acoustic pulses and shear waves.
Purpose of the Study:
- To explore the significance of precision maps and standard deviation in 2D-SWE.
- To understand the implications for converting shear wave speed to pressure.
Main Methods:
- Review of 2D-SWE technology and its potential artifacts.
- Analysis of how precision maps and standard deviation data influence elastographic measurements.
- Exploration of the relationship between shear wave speed, pressure, and measurement reliability.
Main Results:
- 2D-SWE measurements can be influenced by artifacts, impacting accuracy.
- Precision maps and standard deviation provide insights into the reliability of shear wave propagation.
- Consideration of these factors is essential for accurate pressure estimations from shear wave speed.
Conclusions:
- Precision maps and standard deviation are vital for interpreting 2D-SWE data.
- Accurate conversion of shear wave speed to pressure requires careful attention to measurement reliability.
- Understanding artifact impact is key to advancing ultrasound elastography applications.
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