Siemens Acuson S2000, Instructions For Use Manual

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10 Virtual Touch Applic ati ons
Instructions for Use 10 - 19
Virtual Touch IQ Measurements
You can measure the shear wave velocity or elasticity anywhere within the region of interest.
You can perform multiple measurements on a single acquisition. Virtual Touch IQ supports both
measure-then-label and label-then-measure methods and includes a set of measurement
labels:

Up to four sites for generic locations

Up to four lesions
Note: The 2D-mode thyroid measurement labels are also available during Virtual Touch IQ.
After each labeled measurement using the label-then-measure method, the system displays a
counter below the image to indicate the number of valid measurements and the total number of
all measurements for the active measurement label. A valid measurement is any measurement
that displays a numerical value in the measured results.
To measure shear wave velocity or elasticity:
Note: You can perform shear wave velocity or elasticity measurements only when the [ Shear Wave ]
setting is Velocity .
1. Activate the measurement function, if necessary, and select the shear velocity
measurement tool:
● Press CALIPER and then select Shear Velocity or Elasticity .
○ For systems without a touch screen, press CALCS and then click Shear Velocity or
Elasticity on the measurement menu.
Note: When you use the label-then-measure method, the system automatically activates the
shear velocity measurement tool when you select a shear velocity measurement label.
2. Position the measurement caliper and then press SELECT .
The system displays the measured results for shear velocity in meters per second (m/s).
Measured results for elasticity display in kiloPascals (kPa).
Note: If you perform a measurement within the region of interest (ROI) that exceeds the current
maximum velocity or elasticity setting, the measured results display HIGH for the shear velocity
and elasticity value. If you perform a measurement within the ROI that is lower than the current
minimum velocity and elasticity setting, the measured results display LOW . The measured
results display NA if the shear wave was not detected within the ROI or if you perform a
measurement outside of the ROI.