This technical leaflet outlines how to evaluate liver steatosis and liver fibrosis using Samsung’s RS Series (RS85 Prestige, RS85, RS80 EVO) ultrasound systems equipped with quantitative ultrasound (QUS) tools.
For assessing steatosis, Samsung provides QUS techniques: Tissue Attenuation Imaging (TAI™) and Tissue Scatter Distribution Imaging (TSI™). These tools measure how ultrasound signals weaken and scatter in liver tissue to estimate fat content as a percentage, offering a non-invasive, cost-effective alternative to MRI.
To evaluate fibrosis, Samsung offers S-Shearwave Imaging™, a type of shear wave elastography that measures liver stiffness and displays results in kPa or m/s, helping determine fibrosis severity. The Society of Radiologists in Ultrasound (SRU) “rule of four” serves as a guideline for interpreting stiffness values.
This technical leaflet provides clear recommendations to ensure accurate measurements: fasting for at least four hours before the exam, proper patient positioning and breath control, selecting the appropriate region of interest in the liver, and taking at least five measurements for reliable results.
TAI™, TSI™, and S-Shearwave Imaging™ are optional features that may not be available in every market and require separate purchase.
For more insights, see the white paper: Quantitative Ultrasound for Liver Steatosis & Fibrosis in a Health Screening Program.
