Siemens Elasticity Imaging
Siemens Virtual Touch Quantification
Released On :
8/18/2014 12:00:00 AM | Time :
This brief video provides an overview of Siemens Virtual Touch Quantification
Virtual TouchTM Quantification provides a quantitative assessment of tissue stiffness through measurement of shear wave speed. Shear waves are generated by displacement of tissue and attenuate approximately 10,000 times more rapidly than conventional ultrasound waves. To perform Virtual Touch Quantification a small region of interest or ROI is placed at the desired assessment location. A standard transducer is used to apply an ultrasound push pulse which runs alongside the ROI. This slightly compresses the tissue and as a result sound waves called shear waves are naturally propagated perpendicular to the push pulse throughout the tissue including through the ROI. Multiple detection pulses are sent through the ROI, measuring the speed of the shear waves by calculating the time required for each shear wave to reach its peak. Speed correlates to the tissue stiffness. The quantitative result is displayed in meters per second instantly along with the depth of the ROI.