How to Use the 3D Object Editor

How to Use the 3D Object Editor Computed Tomography The 3D Object Editor is based on 3D region growing functionality. The operator can define independent 3D objects that can be either displayed or removed from the volume. With this feature it is possible to extract the bone from a data set and display only the vessels containing contrast media. 1. Starting the Editor: Open the 3D Object Editor from the top of the 3D screen via Settings > Editor Region  Growing, or (if available) from the dedicated Region Growing icon on the Volume tab in the 3D card. 2. Layout of the Editor: SIEMENS siemens.com/healthineers Healthineers . Job Aid |How to Use the 3D Object Editor Effective Date: 8/16/2016 | Quality 623  An MIP is displayed in the first segment with a magenta cutline that represents the position of the axial slice in the second segment. This line can be moved and the axial image will update automatically. The Image Type can be changed on the Type Tab card to a VRT, MPR, etc.  An MPR is displayed In the second segment. This image type cannot be changed The third segment contains the Object Editor dialogue box   The fourth segment displays the output/resulting image 3. Define a Threshold for the 3D Object:  To define the bone as its own 3D object, select an appropriate threshold using the slider bar, or enter the values manually. Bone density is typically within a 349HU-3071HU range This threshold should exclude the Vessels from being included in the 3D object  4. Start the Growing: Press the Set Seed icon to begin setting seed points in the second  segment. Left-click to set seeds in the anatomy within the defined  threshold (bony structures) ............... Siemens Healthineers Services Page 2 of 10 Job Aid |How to Use the 3D Object Editor Effective Date: 8/16/2016 | Quality 623 5. Generate the First 3D Object: Click the Add to Object icon to start the growing process   All structures which are connected to the set seed points that fall within the defined threshold will be incorporated into the 3D object and displayed in the fourth segment ............. Object Con State Punched Voume Region Growing Presets Defaut CT -102 3071 Lowvalue 3413071 Highvalue Close Help If desired, double-click on the object color bar in the dialogue box and define a different  color for the 3D mask Siemens Healthineers Services Page 3 of 10 Job Aid |How to Use the 3D Object Editor Effective Date: 8/16/2016 | Quality 623 6. Add Additional Parts to the 3D Object: image 1 image 2  In this example, the spine and ribs have been included in the bone volume (shown green in segment four), but the pelvis has not (image 1).  Move the magenta line in segment one to see what has/has not been included in the threshold. Use the Set Seed icon to add additional seed points and the Add to Object icon to include new structures in the 3D bone volume The missing anatomy (pelvis) should now be included in the 3D object (image 2).  7. Remove the Bone from the Data Set: The sub-volumes that have been created will display in the Object Editor dialogue box.   To remove the bone from the data set, disable the checkbox in front of the volume and enable the checkbox for the Punched Volume.  Click the Update Masking button. All views will be updated and the bone is removed. Object Editor Morphological Operations Cobor Stite Object list ched Volume Region Growing Presets Defaut CT -102 173071 Low vale 341 2 3071 - Highvalue Close Hdp Siemens Healthineers Services Page 4 of 10 Job Aid |How to Use the 3D Object Editor Effective Date: 8/16/2016 | Quality 623  The bone will be removed in both the MIP image (segment 1) and the soft tissue image (segment 2). ---  Based on the value set for the lower threshold, some cortical bone may still be seen in the MIP. Cortical bone can be removed using a dilate function  8. Morphological Operations - Dilate and Erode: Enable Morphological Operations by clicking the icon  Object Editor X Tools in the Object Editor dialogue box allow you to dilate (expand) or erode (shrink) a created volume by a specific number of pixels Object Color State monted To dilate, select the desired amount of dilation and click the dilate button. Click the Update Punched Volume Masking to refresh the volume. Morphological Operations Size K Close Help Siemens Healthineers Services Page 5 of 10 Job Aid |How to Use the 3D Object Editor Effective Date: 8/16/2016 | Quality 623 9. Create Vessels as New Object:  For a good MIP or VRT of the vessels it is sometimes necessary to create a volume of only the vessels as a separate 3D object.  Define a New Object by activating the icon: Object Editor X Object New Object Color State The new object will be added to the list in the Object new (11 modified Vessel Editor dialogue box. Punched Volume Objects can be renamed by double-clicking on the object Region Growing and typing the desired name (e.g. Vessels) Presets Defaut CT -1024 13071 Low value 341 2 3071 Highvalue Close Help Object Editor X Type in the desired lower and upper threshold values or Object Color State Low [1] select pre-defined thresholds from the presets list modified ] Vessel modified Contrasted vessels are typically within a 150HU- 3071HU C Punched Volume range Region Growing You can store these values as presets in the presets list Presets Betaat -102 hon 3071 or delete existing ones Low value 1532 3071 Highvalue Cose Enable the set seed function again and deposit seed points on the  contrasted vessels. ............... Siemens Healthineers Services Page 6 of 10 Job Aid |How to Use the 3D Object Editor Effective Date: 8/16/2016 | Quality 623  During region growing, the system will not automatically connect vessels and bones since the bone pixels have been removed. AMery 2/17/00 TA 11:25:23 AM  Click the Add to Object icon to start the growing process ............. The vessels and all connecting parts will be displayed in the fourth  segment # VZ Renal Artery $55:23 AM RAH A Siemens Healthineers Services Page 7 of 10 Job Aid |How to Use the 3D Object Editor Effective Date: 8/16/2016 | Quality 623 10. Display the Vessels as a MIP or VRT without Bone: D Select the Vessels object from the Object Editor dialogue box. Deselect any other  volumes and the Punched Volume checkbox. Choose the VRT or MIP icon from the Image Type tab  VRT 11. Saving the 3D Object(s) to the Database: When the Object Editor dialogue box is closed, the system will ask if you first want to  save the created 3D object(s) to the database Siemens Healthineers Services Page 8 of 10 Job Aid |How to Use the 3D Object Editor Effective Date: 8/16/2016 | Quality 623  After the Editor dialogue box is closed, the 3D card layout displays as normal and only the desired 3D object is displayed  If you want to display the whole data set, again open the Object Editor and enable the desired objects Siemens Healthineers Services Page 9 of 10 Job Aid |How to Use the 3D Object Editor Effective Date: 8/16/2016 | Quality 623 Please note that the learning material is for training purposes only! 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's 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 (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. Copyright @ Siemens Healthcare GmbH ...... ........... Siemens Healthineers Headquarters Siemens Healthcare GmbH Henkestr. 127 91052 Erlangen, Germany Telephone: +49 9131 84-0 siemens.com/healthineers Siemens Healthineers Services Page 10 of 10