ACUSON Sequoia™ 3.5 VB30 UDFF Quick Card

Quick Card Ultrasound Derived Fat Fraction (UDFF) ACUSON Sequoia Ultrasound System 3.5 (VB30) siemens-healthineers.com/sequoia Using the Ultrasound Derived Fat Fraction (UDFF) technology to quantify fat contained within a patient’s liver and display it as a percentage (%) Step 1 DAX Abdomen • Select a compatible transducer and the Abdomen exam preset Step 2 • Press VT (Virtual Touch) located on VT the Control Panel SIEMENS Healthineers . Step 3 UDFF Step 7 • Select the UDFF key from the Touch To enter the measurement Screen – the pSWE ROI will enlarge into the report: to UDFF size once activated • Press Image to store the image Liver Site 1 is active as the default Image • or measurement label • Press the right or left Set key • If desired, select an alternate label Note: If No Label is selected, measurements will appear next to the image, but will not Step 8 be sent to the report or added to the overall • statistics. Unfreeze, repeat steps 5–8 to acquire additional measurements Freeze Note: If selected from the Touch Screen, the Auto Point Shear Wave (Auto pSWE) Note: Five measurements at the same technology can be used simultaneously site are recommended, however, with UDFF.1 Measurement values for both more can be performed based on the technologies will be displayed on the screen. individual site protocol or study specifics. Auto pSWE is compatible with the Deep Abdominal Transducer (DAX) and 9C2 transducer on the Abdomen exam preset. Step 9 Report • Select Report on the left side of the Touch Screen Step 4 • View, delete, store, print, or transfer • Roll the Trackball to position the ROI the UDFF measurements (region of interest) at least 1.5–2 cm below the liver capsule Liver Site 1 UDFF Depth % cm • Ensure the “+” marker on the sample 5.7 line is parallel with the liver capsule 10 5.5 5.5 8 5.5 5.5 Mean 8.8 Std Dev 1.6 Step 5 Median 8.0 Update IQR 3.0 IQR/Median 0.4 • Instruct the patient to suspend Overall Statistics respiration; then press the Mean 8.8 % Std Dev 1.6 % Median 8.0 % IQR 3.0 % IQR/Median 0.4 Update key on the Control Panel to begin the acquisition Step 6 Liver Site 1 UDFF=6 % When the acquisition is complete, Depth=4.3 cm • the system automatically freezes, emits one audible “beep”, and displays the UDFF measurement and ROI depth next to the image 1 UDFF is compatible with the Deep Abdominal Transducer (DAX), 5C1, and 9C2 transducer on the Abdomen exam preset. If UDFF is used with Auto pSWE, the transducer cooling time will be increased. 2 siemens-healthineers.com/ultrasound DAX Liver Site 5 Abdomen UDFF=10 % TIB:0.85 Depth=5.5 cm TIC:2.44 TIS:0.85 MI:1.38 Ultrasound Derived 20fps 95% 2D H Low Fat Fraction -4dB/DR60 c=1540 PSWE Liver Application Best Practice Techniques 16cm Cooling 6 Fig. 1: Optimal technique Fasting for at least four hours In the non-fasting state, liver values may be have falsely increased. Position the patient supine or in a slight Optimal positioning improves intercostal access and clearly (30°) left lateral decubitus position with visualizes an artifact-free area of the liver. the right arm raised above the head Ensure the transducer is perpendicular Inaccurate or invalid measurements can result if the transducer is to the 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 the transducer to achieve proper alignment. Perform the acquisition during Instruct the patient to breathe normally and then to momentarily suspended respiration; the patient may stop breathing during the acquisition. When the acquisition is resume normal breathing after an complete, the system freezes and emits one audible “beep”; the audible “beep” is heard patient can then resume normal breathing. Obtain five 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, we pioneer breakthroughs in healthcare. the Operator Manual or Instructions for Use (hereinafter collectively For everyone. Everywhere. Sustainably. As a leader in medical “Operator Manual”) issued by Siemens Healthineers. This material is technology, we want to advance a world in which breakthroughs to be used as training material only and shall by no means substitute in healthcare create new possibilities with a minimal impact on the Operator Manual. Any material used in this training will not be our planet. 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