This technical leaflet highlights the advanced tools available on Samsung’s V Series ultrasound systems (V8, V7, V6) for accurate, non‑invasive evaluation of liver steatosis and liver fibrosis.
The leaflet explains how the V Series integrates quantitative ultrasound (QUS) technologies to help clinicians assess liver steatosis with confidence:
Tissue Attenuation Imaging (TAI™): measures ultrasound signal attenuation to estimate the liver fat fraction, correlating with MRI‑PDFF.
Tissue Scatter Distribution Imaging (TSI™): analyzes ultrasound backscatter patterns to quantify hepatic steatosis based on statistical models.
For fibrosis assessment, the leaflet describes S‑Shearwave Imaging™, a shear wave elastography (2D‑SWE) technique that measures liver stiffness in real time. Results are displayed as a color‑coded elasticity map, expressed in kilopascals (kPa) or meters per second (m/s), supporting fibrosis staging. The leaflet also references the Society of Radiologists in Ultrasound (SRU) “rule of four” as a standardized method for interpreting stiffness values.
The leaflet outlines best practices for obtaining reliable measurements: fasting at least 4 hours, proper patient positioning with breath control, selecting a region of interest at least 15–20 mm below the liver capsule, and acquiring at least five measurements to improve reproducibility.
Clinical performance data in the leaflet show strong agreement between these ultrasound‑based methods and reference standards like MRI and biopsy. International guidelines (WFUMB, SRU) are also cited to support the use of these techniques in routine practice.
In summary, the leaflet demonstrates how Samsung’s V Series ultrasound systems combine QUS tools (TAI™, TSI™) and S‑Shearwave Imaging™ to enable accurate, objective, and non‑invasive assessment of liver steatosis and fibrosis, enhancing patient care and clinical decision‑making.
