
3D/4D for Obstetrics ACUSON Sequoia Ultrasound System 2.5 (VA50) Release
This guide describes the workflow to acquire a 3D volume during an obstetric exam.
QuickReference Card 3D/4D for Obstetrics ACUSON Sequoia™ Ultrasound System (VA50) siemens-healthineers.com/sequoia HOOD05162003346328 · Effective date 12-Apr-2023 SIEMENS. Healthingers ACUSON Sepodia CO 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 Update 4D • Press the Update key to start the acquisition. The system will enter live 4D imaging, select Freeze to stop the acquisition Tips: Face Spine • To obtain the frontal view of a fetal face in 3D / 4D, • To obtain a 3D fetal spine, the 2D acquisition plane ensure that your 2D acquisition plane displays the is preferably spine up fetal profile • Curve the VOI line to match the curvature of the • Use light pressure to increase the amount of fluid spine while keeping this line in the amniotic fluid seen in front of the fetal face above the spine • If the fetus is highly mobile, 4D mode is helpful as • The Skeletal (Max IP) rendering mode is several 3D acquisitions may be needed to prevent recommended a blurred image • Surface or LightSource rendering modes are recommended 2 siemens-healthineers.com/ultrasound Step 3 3D Clip • Press Image to store a volume 4D • During live acquisition, press the Clip key to store a 4D clip Image • 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 Render Modes Surface Vascular Skeletal There are four render modes available: LightSource Surface Smooths image contour, creates a soft sculptured appearance for highlighting surface features of soft tissue such as the fetal face and limbs. Light Source Helps increase depth perception, reveal surface details, provides an element of texture and can provide a deeper understanding of relational anatomy. The adjustable light source direction is automatically activated in a 1:1 layout, 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. Vascular (Minimum Intensity Projection) best for visualizing hypo-echoic areas and vascular structures. Skeletal (Maximum Intensity Projection) best for bony structures such as the fetal spine. siemens-healthineers.com/ultrasound 3 FlexPlane FlexPlane The FlexPlane tool allows the user to obtain and visualize anatomy of any shape along any plane. This is especially useful when Line imaging complex or irregularly shaped structures. The user can choose from: Trace Spline • Line – A straight line in any direction • Trace – A freehand line traced in any direction • Spline – An open spline controlled by selecting the 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 MAPONTS Use the rotary soft keys to adjust volume thickness as well as line Thickness or slice orientation. Rotate Line Rotate Slice 2 mm Note: To enable measurements on the rendered image, set the thickness to Off. MPR & VR Orientation A B 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. C VR • Select the desired quadrant from the touch screen • The MPR slicing function is manipulated using the 3D/4D control • The X axis is manipulated using the M-mode control • The Y axis is manipulated using the PW-Doppler control • The Z axis is manipulated using the Color Doppler Use the rotation tools on the touch screen to quickly rotate the volume rendering by set degrees. 90º 180º 270º 4 siemens-healthineers.com/ultrasound 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 B C VR • Select the desired layout from the touchscreen • Use the rotary soft keys to adjust the number of slices, distance Slices Distance Position of Slices between slices and the position of the slices 5 2 mm 0 mm Editing Editing The editing tab contains options for removing unnecessary Line Open Spline Closed structures. Spline • Select the desired tool from the touchscreen • Using the trackball and Set keys delineate the area for removal Undo All • 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 options siemens-healthineers.com/ultrasound 5 Additional Optimization – Acquisition Angle Determines the angle of the volume sweep. Quality Adjusts the resolution and sweep speed between Low, Mid, and Hig. Additional Optimization – VR Threshold Decreasing threshold removes low-level echoes while increasing threshold adds low-level echoes. Opacity Adjusts the transparency of the voxel. Smooth Averages the edges of the voxels with adjacent voxels to smooth the volume image appearance. Brightness Changes the voxel saturation. Contrast Raises or lowers the percentage of contrast to enhance differences in tissue. Tint 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. 6 siemens-healthineers.com/ultrasound Review ? • Select Review from the touch screen with the pointer, select the image for review Patient Imaging Review Report • Select the 3D/ 4D tab on the touch screen to activate volume manipulation tools if desired 3D/4D Review • 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 Review tab will be stored as still images. siemens-healthineers.com/ultrasound 7 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. · HOOD05162003346328 · 13609 0423 online only · Effective date 12-Apr-2023 ©Siemens Medical Solutions USA, Inc., 2023
- ACUSON Sequoia
- Sequoia
- 3D
- 4D
- gynecology
- endovaginal
- MPR
- multiplanar rendering
- volume of interest
- VOI
- VR
- volume rendering