• Object ID: 00000018WIA30568970GYZ
  • Topic ID: id_40025576 Version: 1.2
  • Date: Mar 10, 2022 5:49:55 PM

Create a merged Volume Rendered view workflow

About this task

Use these steps to merge many data types to create a new view of the anatomy. In this example, a DTI data set FiberTrak view is merged with the 3D data sets and the pathology of interest.

Step-by-step instructions

  1. From the Patient List, select an exam that has multiple data sets you want to merge.
  2. From the Session Appls list, click MR General Review.
    Figure 1. Example of an exam with multiple series


  3. From the Loading panel, select the desired series and click OK.
    • Based on the exam selected, the Protocol Selection screen may appear, which first requires the selection of a protocol. In this example, only a DTI series was in the exam and the protocol page was by-passed.
    Figure 2. Loading panel


    • The DTI protocol is launched. All selected series are displayed in the Review Steps. DTI, FiberTrak, Mirror ROI, Main EigenVector, Colored Orientation, ADC and T2-Weighted Trace are always displayed with the DTI protocol. Other series displayed in the Review Steps are dependent on the series selected from the Patient List.
  4. From the Review Steps, click FiberTrak.
    • The coronal, sagittal and axial viewports are displayed as Colored orientation maps.
      Figure 3. FiberTrak review step selected


  5. Scroll through the images to locate an image that displays white matter tracts or pathology of interest from which you can deposit ROIs to define the tracts.
  6. To create the DTI FiberTrak view, follow these steps.
    1. From the DTI FiberTrak screen, click New Tract.
    2. Click one of the ROI icons from the DTI FiberTrak screen.
    3. Position the cursor over the area of interest and click to deposit the ROI. Size and shape the ROI as needed.
    4. Click Track to generate updated tracking fibers.
    5. Each time you add a new tract, the system automatically assigns a tract color. To change the color of the tract:
      • Click the color icon next to the trash can and a color palette appears.
      • Click and drag the color cursor over the desired color.
      • Click the X on the color palette window to close it.
    6. To apply color scheme to the fiber tracts, place the cursor in the fiber tract viewport and right-click on the yellow Default and then click User Color.
    7. Repeat these steps for the additional FiberTraks
      Figure 4. Create FiberTrak


  7. To merge the 3D views with the FiberTraks, follow these steps.
    1. From the sagittal color orientation viewport, click on Color orientation and select the 3D view.
      Figure 5. Color orientation


    2. From the plane selection menu, click Sagittal.
    3. Scroll through the images to locate an image that displays the pathology of interest.
    4. With the mouse in Select mode, click an image and drag it over the FiberTrak viewport and drop it in the "Drop here to merge the views" box.
      • Respond to any prompts
    5. From the coronal orientation viewport, click Color orientation and select the 3D view.
    6. From the plane selection menu, click Coronal.
    7. Scroll through the images to locate an image that displays the pathology of interest
    8. With the mouse in Select mode, click an image and drag it over the FiberTrak viewport and drop it in the "Drop here to merge the views" box.
      • Respond to any prompts
        Figure 6. Merge views


  8. To merge the 4 views (FiberTrak, Sagittal, Coronal and Axial), follow these steps.
    1. From one of the 3D viewport plane selection menus, click Axial.
    2. Scroll through the images to locate an image that displays the pathology of interest
    3. With the mouse in Select mode, click an image and drag it over the FiberTrak viewport and drop it in the "Drop here to merge the views" box.
      • Respond to any prompts
        Figure 7. 4 views merged


  9. To apply Auto Contour to the area of interest, follow these steps.
    1. From the Measure/Annotate Toolbar, click the Auto Contour icon, which opens the Auto Contour screen.
      Figure 8. Auto contour


    2. From the 3D view, click in the center of the area of interest.
    3. From the Auto Contour, click Accept and Measure.
      Figure 9. Auto contour area of interest


  10. To cut outside the Auto Contour, follow these steps.
    1. From the viewport that contains the contour, right-click and select Cut All Outside.
      Figure 10. Right-click menu


    2. The auto contour structure displays with all other data removed from the viewport.
      Figure 11. Auto contour object


  11. To change the Auto Contour to a VR image, right-click in the cut viewport and select VR.
    Figure 12. Volume rendered image


  12. To merge the VR view with the FiberTrak, follow these steps.
    1. Place the mouse in Select mode
    2. Click and drag the VR image to the FiberTrak viewport and drop it in the "Drop here to merge the views" box.
      • Respond to any prompts
        Figure 13. VR and Fibertrak merged


  13. To show/hide desired objects on a merged viewport, follow these steps.
    1. From the DTI FiberTrak screen, click Display Objects.
      • Display Object is a list of fiber track objects. An open eye displays the object on the fiber track viewport and a closed eye hides the object on the fiber track viewport. The objects can be the orthogonal planes, a volume rendered 3D head, a 2D anatomical image, individual fiber tracks, etc.
    2. From the Multi-objects screen, click the Hide/Show icon to Hide or Show the background structure.
      Figure 14. Hide/show objects


      Figure 15. Example of Multi-Objects that are Shown and Hidden