ACUSON Sequoia™ Ultrasound System 2.5 (VA50) SW release Ultrasound Derived Fat Fraction (UDFF)

ACUSON Sequoia™ Ultrasound System (VA50) Ultrasound-Derived Fat Fraction (UDFF) Quick Reference Card siemens-healthineers.com/ultrasound HOOD05162003200823 · Effective date 10-Apr-2023 Use the Ultrasound Derived Fat Fraction (UDFF) technology to quantify fat contained within a patient’s liver and display as a percentage (%) Step 1 DAX Step 3 Abdomen PSWE • Select compatible transducer1 and • Select pSWE, if needed Abdomen or General exam preset • Select the UDFF key from the touch UDFF screen – the pSWE ROI will enlarge to UDFF size once activated Step 2 • Liver Site 1 is active as the default VT • Press VT (Virtual Touch) located on measurement label control panel • If desired, select an alternate label Note: If No Label is selected, measurements will appear next to the image but will not be sent to the report or added to the overall statistics. Note: If selected from the touch screen, the Auto Point Shear Wave (Auto pSWE) technology can be used simultaneously with UDFF.2 Measurement values for both technologies will be displayed on screen. 1 UDFF is compatible with the Deep Abdominal Transducer (DAX), 5C1, and 9C2 transducers on the Abdomen and General exam presets. 2 Auto pSWE is compatible with the Deep Abdominal Transducer (DAX) and 9C2 transducer on the Abdomen and General exam presets. SIEMENS Healthineers Step 4 Step 8 • Roll trackball to position ROI • Unfreeze, repeat steps 5–8 to (region-of-interest) at least acquire additional measurements Freeze 1.5–2 cm below the liver capsule Note: 5 measurements at the same site are • Ensure the “+” marker on the sample recommended however more can be performed line is parallel with the liver capsule based on individual site protocol or study specifics. Step 5 Update Step 9 Report • Instruct the patient to suspend • Select Report on left side of touch respiration then press the Update screen key on the control panel to begin • acquisition View, delete, store, print or transfer UDFF measurements Liver Site 1 Step 6 Liver Site 1 UDFF Depth cm UDFF=6 % • When acquisition is complete, Depth=4.3 cm 11 10 system automatically freezes, emits one audible “beep” and Mean displays UDFF measurement Std Dev 1.6 Median 8.0 and ROI depth next to image IQR 3.0 IQR/Median 0.4 Overall Statistics Mean 8.8 % Std Dev 1.6 % Median 8.0 % IQR 3.0 % IQR/Median 0.4 Step 7 To enter measurement into report: Clip • Press Image to store image CO or Image • Press right or left Set key 2 siemens-healthineers.com/ultrasound DAX Liver Site 5 Abdomen TIB:0.85 Ultrasound-Derived UDFF=10 % Depth=5.5 cm TIC 2.44 TIS.0.85 MI:1.38 20fps 95% Fat Fraction 2D H Low 4dB/DR60 c=1540 PSWE Liver Application Best Practice Techniques 16cm Cooling 6 Fig. 1: Optimal technique Fasting for at least 4 hours In the non-fasting state, the liver can have falsely increased values. Position patient supine or slight (30°) Optimal positioning to improve intercostal access and clearly left lateral decubitus position with right visualize an artifact free area of the liver. arm raised above head Ensure the transducer is perpendicular Inaccurate or invalid measurements can result if the transducer is to skin surface and use ample gel not perpendicular to the skin line and/or there is a loss of contact between the transducer and the skin. Take measurements in the right lobe of Placing the ROI in an artifact free area devoid of vessels, large ducts, the liver, at least 1.5–2 cm below the and/or fluid filled structures such as cysts, is recommended to liver capsule (Fig. 1) using an intercostal obtain reproducible results. scanning approach Align “+” marker (arrow) on the sample Non-parallel alignment can result in inaccurate measurements – tilt line parallel to the liver capsule (Fig. 1) or rock transducer to achieve proper alignment. Perform acquisition during suspended Instruct patient to breathe normally and then to momentarily stop respiration; patient may resume normal breathing during acquisition. When acquisition is complete, the breathing after audible “beep” is heard system freezes and emits one audible “beep” and the patient can resume normal breathing. Obtain 5 measurements at same site Recommended number of measurements to obtain reliable results. siemens-healthineers.com/ultrasound 3 For the proper use of the software or hardware, please always use At Siemens Healthineers, our purpose is to enable healthcare the Operator Manual or Instructions for Use (hereinafter collectively providers to increase value by empowering them on their journey “Operator Manual”) issued by Siemens Healthineers. 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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 Sequoia and Ultrasound Derived Fat Fraction are trademarks of Siemens Medical Solutions USA, Inc. Siemens Healthineers Ultrasound owns the rights to all images. Siemens Healthineers Headquarters 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. · HOOD05162003200823 · Effective date 10-Apr-2023 · 13629 0423 online ©Siemens Medical Solutions USA, Inc., 2023