ACUSON Redwood™ Virtual Touch™ 2D Shear Wave Elastography (2D SWE)

ACUSON Redwood ultrasound system Virtual Touch 2D SWE Quick Reference Card siemens-healthineers.com/ultrasound Using 2D shear wave elastography (SWE) to Tip: Either Velocity (m/s) or Elasticity (kPa) can be displayed on measure shear velocity (Vs) in meters per the report – customize before or after report generation second (m/s) or elasticity (E) in kilopascal (kPa). under: System Configuration > Measurement & Report > Measurement > Settings > General > Shearwave Measurement Unit. Step 1 10L4 Step 4 Breast Update • Select 10L4 transducer and • Roll trackball to reposition compatible exam preset1 the ROI • Press right or left Set key Step 2 and roll trackball to resize ROI • Press VT (Virtual Touch) located on VT • control panel Use minimal scanning pressure to prevent pre-compression effect Step 3 OSWE • Press Update on control panel to begin acquisition • SWE is default application on the touch screen • The system activates a Live Dual format and displays the region of interest (ROI) 1 2D SWE imaging is compatible with 10L4: General, Thyroid, Breast SIEMENS Healthineers HOOD05162003029249 5-Feb-2020 Virtual Touch 2D SWE Step 5 Shear Wave Min Velocity Max Velocity When acquisition is complete, system automatically Velocity 0.5 m/s 6.5 m/s • freezes, emits one audible “beep” and applies Velocity or Elasticity display mode • Adjust Min and/or Max Velocity or Elasticity Increase range if measured value exceeds range by - displaying “High” or, Decrease range if better visualization of velocity of - stiffness differences is needed • Rotate Shear Wave to view Quality and Displacement displays • Measurements should be taken in regions with high quality (green to yellow-green) in the Quality display • Correlate the areas in the Velocity or Elasticity Note: During freeze, a cooling timer indicates remaining seconds image with shear wave signal-to-noise ratio and until transducer is available for image acquisition. During a short cooling time (e.g., 1–2 seconds), the timer appears and then Displacement amplitude disappears very quickly. Step 6 SWE Display Live Dual If desired, deselect SWE Display to hide / display 2D VT • SWE or, • Deselect Live Dual to view the image in a full-screen format • Rotate VT on control panel to change transparency of 2D SWE to better correlate anatomic locations between the B-mode image and 2D SWE image 2 siemens-healthineers.com/ultrasound HOOD05162003029249 5-Feb-2020 Measurements Shear wave measurements -- + Measurements can be performed in the Velocity Shear Velocity (or Elasticity), Quality or Displacement display modes. • Press Caliper on the control panel • Shear Velocity is default measurement tool 2D H High • Roll trackball to position measurement ROI inside TEQ 0 dB DR 65 2D SWE ROI LD 2 UA 2 SWE Transp 500% • If desired, rotate ROI Diameter to resize measure- ment ROI • Shear wave measurements and measurement ROI 1 Lt Mass 1 Shearwave Velocity depth and diameter are displayed near image (Fig. 1) Vs Median .37 kps Vs Median 2.67 m/s E Median E Median Depth 10.7 kPa 21.3 kPa 3.00 mm Depth 1.78 cm Diam Diam 3.00 mm • To display measurement in report, select measure- 3cm It Mass 1: 2 Valid / 2 Total ment label Fig. 1: Velocity display mode in Live Dual format using the Shadow If desired, press Set and then select measurement feature during shear wave measurements of a thyroid nodule. • tool to perform additional measurements Note: If measurement ROI value exceeds the current maximum • Select Delete on the control panel or Clear Screen velocity or elasticity setting, the measured results display High for on touch screen to delete the measurement the shear wave value. If measurement ROI value is lower than the current minimum velocity and elasticity setting, the measured • Select Report on left side of touch screen to view, delete, store, print or export shear wave results display Low. The measured results display xx if the shear wave was not detected within the ROI or if a measurement is measurements performed outside the ROI. Shadow Shadow Duplicates and displays a measurement on the adjacent image for a comparison of lesion size and/or location. • In Live Dual, press Caliper and then select a measurement tool • Select Shadow on the touch screen to activate • Measure either image (measurement displays in measured results) Tip: Shadow may be used with the shear wave measurement tool when Live Dual is activated (Fig. 1). HOOD05162003029249 5-Feb-2020 siemens-healthineers.com/ultrasound 3 For the proper use of the software or hardware, please always use the Operator Manual or Instructions for Use (hereinafter collectively “Operator Manual”) issued by Siemens Healthineers. This material is to be used as training material only and shall by no means substitute the Operator Manual. Any material used in this training will not be updated on a regular basis and does not necessarily reflect the latest version of the software and hardware available at the time of the training. The Operator Manual shall be used as your main reference, in particular for relevant safety information like warnings and cautions. Note: Some functions shown in this material are optional and might not be part of your system. Certain products, product related claims or functionalities described in the material (hereinafter collectively “Functionality”) may not (yet) be commercially available in your country. Due to regulatory requirements, the future availability of said functionalities in any specific country is not guaranteed. Please contact your local Siemens Healthineers sales representative for the most current information. The reproduction, transmission or distribution of this training or its contents is not permitted without express written authority. Offenders will be liable for damages. All names and data of patients, parameters and configuration dependent designations are fictional and examples only. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. ACUSON Redwood and Virtual Touch are registered trademarks of Siemens Medical Solutions USA, Inc. Siemens Healthineers Ultrasound owns the rights to all images. 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, siemens-healthineers.com USA Phone: 1-888-826-9702 siemens-healthineers.com/ultrasound Published by Siemens Medical Solutions USA, Inc. · HOOD05162003029249 5-Feb-2020· Order No. A91US-622-1C-4A00 Printed in Germany · 7730 0120 ©Siemens Medical Solutions USA, Inc., 2020