PEPconnect

ACUSON Sequoia™ Ultrasound System Virtual Touch 2D SWE-Small Parts | VA11 Software Release

This quick reference guide helps you understand the 2D SWE for small parts using the ACUSON Sequoia ultrasound system with the VA11 software.

ACUSON Sequoia Virtual Touch 2D SWE Quick Reference Card Sequoia Using 2D shear wave elastography (SWE) to measure shear velocity (Vs) in meters per second (m/s) or elasticity (E) in kilopascal (kPa) | Small Parts Application TIP Either Velocity (m/s) or Elasticity (kPa) can be displayed on the report – customize prior to report generation under: System Configuration > Measurement & Report > Measurement > General > Shear Wave > Measurement Units .................... Step 1 1014 Step 5 Select compatible transducer and Breast When acquisition is complete, system automatically • • exam preset.* freezes, emits one audible “beep” and applies Velocity or Elasticity display mode. ...... Step 2 Adjust Min and/or Max Velocity or Elasticity • Increase range if measured value exceeds range by - Press VT (Virtual Touch) located on VT • displaying “High” or, control panel. Decrease range if better visualization of velocity of - stiffness differences is needed. ...................... Step 3 Rotate Shear Wave to view Quality and Displacement • SWE SWE tab is default application on displays. • touch screen. Note: During freeze, a cooling timer indicates remaining seconds until transducer is available for image acquisition. During a short cooling time (e.g., 1–2 seconds), the timer appears and then Step 4 disappears very quickly. Update Roll trackball to reposition • Shear Wave Min Velocity Max Velocity the region of interest (ROI). Velocity 0.5 6.5 Press right or left Set key • and roll trackball to resize ROI. ...... Step 6 Use minimal scanning SWE • If desired, select SWE Display to Display • pressure to prevent pre-compression effect. hide / display 2D SWE or, • Press Update on control Select Live Dual to assess B-mode Live Dual • panel to begin acquisition. image or, Rotate VT on control panel to • change transparency of 2D SWE. VT Note: Live Dual can be selected before or after acquisition and can be saved to a user-defined preset. * 2D SWE imaging is compatible with 5C1, DAX: General, Abdomen; 10L4: General, Thyroid, Breast. HOOD05162002896646 · Printed in Germany · © Siemens Medical Solutions USA, Inc., 2018 SIEMENS Healthineers siemens-healthineers.com/ultrasound Measurements Shear Velocity or Shear Elasticity Measurements can be performed or viewed in the Velocity -- + (or Elasticity), Quality or Displacement display modes. Shear Velocity Shear Elasticity Press Caliper on the control panel. • Thyroid TIB:O. Shear Velocity or Shear Elasticity is default measurement tool. • Roll trackball to position measurement ROI. In Live Dual, the • H Mid measurement ROI can be placed on either image. 0dB/DR65 SWE Velocity If needed, rotate ROI Diameter to resize. Transp: 60% • Shear wave measurements and measurement ROI depth and • diameter are displayed near image (Fig. 1). To display measurement in report, select Right or Left and • Mass 1, Mass 2 or Mass 3 measurement labels. 1 Vs Median=1.45 m/s Std Dev=0.01 m/s If desired, press Set key and roll trackball to perform additional E Median=6.3 kPa • Std Dev=0.0 kPa Depth=1.47 cm measurements. Diam=0.30 cm Select Report on left side of touch screen to view, store, print Fig. 1: Velocity display mode in Live Dual format and • shear wave measurements of a thyroid nodule. or transfer shear wave measurements. Select Delete on the control panel or Clear Screen on touch • screen to delete the measurement. Note: If measurement ROI value exceeds the current maximum velocity or elasticity setting, the measured results display HIGH for the shear wave value. If measurement ROI value is lower than the current minimum velocity and elasticity setting, the measured results display LOW. The measured results display X.XX (for velocity) or XX.X (for elasticity) if the shear wave was not detected within the ROI or if a measurement is performed outside the ROI. Shadow Shadow Duplicates and displays a measurement on the adjacent image for a comparison of lesion size and/or location. 1 D=0.30 cm Select Live Dual, press Caliper on the control panel. • Shadow may be used with the Shear Velocity Select measurement tool. TIP (or Shear Elasticity) tool when Live Dual is • activated. Shadow is activated as a default on the touch screen. • Measure the right or left image. • The Shadow measurement is displayed in the measured results. • ACUSON Sequoia and Virtual Touch are trademarks of Siemens Medical Solutions USA, Inc. Siemens Healthineers Headquarters Legal Manufacturer Siemens Healthcare GmbH Siemens Medical Solutions USA, Inc. Henkestr. 127 Ultrasound 91052 Erlangen, Germany 22010 S.E. 51st Street Phone: +49 9131 84-0 Issaquah, WA 98029 USA siemens-healthineers.com Phone: 1-888-826-9702 siemens-healthineers.com/ultrasound Published by Siemens Medical Solutions USA, Inc. · Order No. A91US-563-1C-A400 · HOOD05162002896646 · Printed in Germany · CIT11962 06180.5 © Siemens Medical Solutions USA, Inc., 2018