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3D/4D for Obstetrics ACUSON Sequoia Ultrasound System 2.0 Release

3D/4D for Obstetrics ACUSON Sequoia Ultrasound System 2.0 Release

This guide describes the workflow to acquire a 3D volume during an obstetric exam.

Quick Reference Card 3D/4D for Obstetrics ACUSON Sequoia Ultrasound System 2.0 Release https://www.siemens-healthineers.com/ultrasound/new-era-ultrasound/ acuson-sequoia ACUSON Sequoia SIEMENS Healthineers Getting Started The 3D volume data set is a series of 2D images gathered over a timed acquisition. Step 1 3D Press 3D / 4D control 4D • • Select 3D or 4D from the touch screen 3D 4D Step 2 • Place the Volume of Interest (VOI) to include the anatomy desired. The VOI can be curved by selecting the Curve option on the trackball left Set key. 3D • Press the Update key and the system will automatically acquire a sweep and display the volume 4D • Press the Update key to start the acquisition. The system will enter live 4D imaging, select Freeze to Update stop the acquisition Tips: Face • To obtain the frontal view of a fetal face in 3D / 4D, ensure that your 2D acquisition plane displays the fetal profile • Use light pressure to increase the amount of fluid seen in front of the fetal face • If the fetus is highly mobile, 4D mode is helpul as several 3D acquisitions may be needed to prevent a blurred image • Surface or LightSource rendering modes are recommended Spine • To obtain a 3D fetal spine, the 2D acquisition plane is preferably spine up • Curve the VOI line to match the curvature of the spine while keeping this line in the amniotic fluid above the spine • The Skeletal (Max IP) rendering mode is recommended Step 3 3D • Press Image to store a volume 4D • During live acquisition, press the Clip key to store a 4D clip inage • Press the Image key to store a single volume on a frozen image Stored 3D volumes are marked with a cube graphic Stored 4D volume clips are marked with a cube containing a “play” Icon the thickness to Off. 2 siemens-healthineers.com/ultrasound Render Modes Surface Vascular skeletal There are four render modes available: LightSource Surface: Vascular: Smooths image contour, creates a soft (Minimum Intensity sculptured appearance for highlighting Projection) best for surface features of soft tissue such as visualizing hypo-echoic the fetal face and limbs. areas and vascular structures. Light Source: Helps increase depth perception, reveal surface details, provides an element of texture and can provide a Skeletal: deeper understanding of relational (Maximum Intensity anatomy. Projection) best for bony structures such as the The adjustable light source direction is automatically activated in a 1:1 layout, fetal spine. but may be activated / deactivated in any layout by selecting the Light key on the touch screen. Light Use the trackball to adjust the direction of the light. FlexPlane The FlexPlane tool allows the user to obtain and visualize FlexPlane anatomy of any shape along any plane. This is especially useful when imaging complex or irregularly shaped structures. The user can choose from: Line • Line – A straight line in any direction • Trace – A freehand line traced in any direction Spline – An open spline controlled by selecting the Trace Spline • set key along the path of the spline Once the desired option is chosen: • Press either Set control to begin the line • Press either set key again to end the Line / Trace tools or to change the direction of the Spline tool (Double-click either Set control to end the Spline) • To redraw the slice, press the Update control Use the rotary soft keys to adjust volume thickness as well as line or slice orientation. Note: To enable measurements on the rendered image, set Thickness Rotate Line Rotate Slice the thickness Off. 2mm siemens-healthineers.com/ultrasound 3 MPR & VR Orientation Adjust the Multiplanar Renderings (MPR) and the volume using the rotation tools on the control panel. These controls can be used during 4D live acquisition. VR • Select the desired quadrant from the touch screen • The MPR slicing function is manipulated using the 3D/4D control CW • The X axis is manipulated using the M-mode control • The Y axis is manipulated using the PW-Doppler CODDOD control • The Z axis is manipulated using the Color Doppler Use the rotation tools on the touch screen to quickly 90º 180ª 270º rotate the volume rendering by set degrees. Multislice Multislice The Multislice tab contains options for viewing multiple slices of the selected MPR plane at the same time. It is often referred to as a CT or MRI view. • Select the desired plane using the A, B and C keys A VR • Select the desired layout from the touchscreen • Use the rotary soft keys to adjust the number of slices, distance between slices and the position Slices Distance Position of Slices 5 2 mm 0 mm of the slices Editing Editing The editing tab contains options for removing unnecessary structures Line Open Spline Closed Spline • Select the desired tool from the touchscreen • Using the trackball and Set keys delineate the Undo All area for removal • Place the scissor icon in the area to be removed and press the Set key to finalize Redo Last Undo Last • Edits may be reversed using the touch screen option 4 siemens-healthineers.com/ultrasound Additional Optimization - Acquisition Scan Angle Quality • Determines the angle of the sweep and the size • Adjusts the resolution and sweep speed between Low, of 3D volume acquired for the freehand Mid, and High acquisition, the angle and time is displayed on the Rocked icon Additional Optimization - VR Threshold Brightness • Decreasing threshold removes low-level echoes while increasing threshold adds low-level • Changes the voxel saturation echoes Opacity Contrast • Adjusts the transparency of the voxel • Raises or lowers the percentage of contrast to enhance differences in tissue Smooth Tint • Averages the edges of the voxels with adjacent • voxels to smooth the volume image appearance Applies assigned color shades to the gray scale Additional Optimization - MPR Dynamic Range • Decreasing threshold removes low-level echoes while increasing threshold adds low-level echoes Map • Adjusts the transparency of the voxel Tint • Applies assigned color shades to the gray scale Review • Select Review from the touch screen with the pointer, select the image for review Patient Imaging Review • Select the 3D / 4D tab on the touch screen to activate volume manipulation Report tools if desired • Any additional images stored while the volume is active in the 3D / 4D tab will be stored as volumes or volume clips. Additional images stored while in the 3D/4D Review Review tab will be stored as still images. siemens-healthineers.com/ultrasound 5 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. By constantly bringing breakthrough “Operator Manual”) issued by Siemens Healthineers. This material is innovations to market, we enable healthcare professionals to deliver to be used as training material only and shall by no means substitute high-quality care, leading to the best possible outcome for patients. the Operator Manual. Any material used in this training will not be updated on a regular basis and does not necessarily reflect the latest Our portfolio, spanning from in-vitro and in-vivo diagnostics version of the software and hardware available at the time of the to image-guided therapy and innovative cancer care, is crucial training. The Operator Manual shall be used as your main reference, for clinical decision-making and treatment pathways. With our in particular for relevant safety information like warnings and strengths in patient twinning, precision therapy, as well as digital, cautions. data, and artificial intelligence (AI), we are well positioned to take on the biggest challenges in healthcare. We will continue to build Note: Some functions shown in this material are optional and might on these strengths to help fight the world’s most threatening not be part of your system. diseases, improving the quality of outcomes, and enabling access to care. Certain products, product related claims or functionalities described in the material (hereinafter collectively “Functionality”) may not We are a team of 66,000 highly dedicated employees across (yet) be commercially available in your country. Due to regulatory more than 70 countries passionately pushing the boundaries requirements, the future availability of said functionalities in of what’s possible in healthcare to help improve people’s lives any specific country is not guaranteed. Please contact your local around the world. 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 Sequoia is a trademark 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. · HOOD05162003288978 · 11617 0222 online · ©Siemens Medical Solutions USA, Inc., 2022

  • ACUSON Sequoia
  • Sequoia
  • 3D
  • 4D
  • gynecology
  • endovaginal
  • MPR
  • multiplanar rendering
  • volume of interest
  • VOI
  • VR
  • volume rendering