• Object ID: 00000018WIA3054A970GYZ
  • Topic ID: id_40024418 Version: 1.2
  • Date: Mar 9, 2022 11:31:59 AM

Volume Viewer workflow

About this task

MR General Review is a post-processing application for MR images. There are no limitations on the patient population.

If you added protocols to your favorite list, use these steps for a simple exam review in 7 steps.

Step-by-step instructions

  1. Select a patient to Review and launch MR General Review.
    • For details, see: Open Volume Viewer procedure.
    • The application launches with a format based on the number of series selected from the Loading Panel. Each viewport has an image from the selected series. MR General Review is the default Review Step visible.
    • In this example, if one of your 8 series is a spectroscopy series it will wrap the first series to the 8th position to create an even format.
      Figure 1. Example of 7 series selected from the Loading panel


      1. Click the viewport of the series you want to view.
      2. Select the desired protocol.
        • In this example, a multi-phase series is in the primary viewport and Brainstat AIF is selected from the Protocol icon
          Figure 2. Select a protocol from the list


          Figure 3. In this example, ADC is launched


      3. At any time, you can click MR General Review > Review Step to return to the 8 viewport display and then click another viewport and protocol.
      4. If you navigate to the Protocol screen, rather than re-launching the same protocol from the Protocol screen, click Back to the application to return to the currently active application.
  2. Page through the images and adjust Window Width/Level, Rotate, and Zoom.
    1. To page through Axial, Sagittal or Coronal images, click the Page/Rotate mode icon. Click the left mouse button and drag the mouse up and down.
    2. To rotate oblique and 3D views, first from the pulldown menu select an Oblique/3D image type, then click the Page/Rotate mode icon. Press and hold the left mouse button while moving in the direction to rotate.
    3. To zoom click the Zoom icon and to pan select the Roam/Pan icon. Click the left mouse button and drag the mouse.
    4. To use select mode (to isolate or select viewports, fuse viewports), click the Select icon.
    5. To adjust the Window Width and Level, click the Window width /Window Level icon. Click the left mouse button and drag the mouse to adjust the window width (left-right motion) or the window level (up-down motion). Note that you can always use the middle mouse button to change the W/L: middle-click and drag over the image. For more W/L details, see:
  3. From a 3D data set, create an MPR or Reformat image.
    1. Select the 2D view to change the slice thickness. Middle-click and drag to adjust the thickness in real time or left-click to decrease and right-click to increase the slice thickness. Alternatively, click the slider or type a desired value on the view.
      • The small horizontal bars on either side of the single bar are used to adjust the MPR slice thickness.
        Figure 4. 2D image


    2. To work in 3D, set the view type to 3D.
      Figure 5. 3D image


    3. Right-click the rendering active annotation and select an option from the available modes. In Figure 6 example, right-click MIP.
      Figure 6. 3D View


  4. Make annotations, measurements as needed.
    1. Click the Straight Distance icon to measure a straight distance.
    2. Click the Report Cursor icon to view the voxel value.
    3. Click a 2D ROI, for example Elliptic ROI icon to measure display and average voxel value inside a Region of Interest.
    4. Click the Annotation icon to write a message on the viewport.
  5. Segment the images as needed.
    • Use the Segmentation toolbar to select icons below and other segmentation tools.
      Figure 7. Auto Select screen


    1. Click the Auto Select icon.
    2. From the Auto Select screen, click the icon responding to the structure you want to segment and then click Add or Remove.
    3. For an optimized review of the displayed objects, click Transparent Background.
    4. Use other Segmentation tools as need.
      • Click the Scalpel icon to draw a structure to cut inside or outside the contours and to adjust the depth of the cut.
      • Click the One Click Trace icon or Two Click Trace icon for vessel tracking. Note the progress bar in the lower left corner of the screen.
  6. Save images.
    • Use the Export Toolbar to select the icons below and other Export tools.
      1. Click the Batch icon to rapidly set up a set of regularly spaced images, preview the set as an animated sequence (rotation, loop or oblique) and film and/or save it.
      2. Click the Save image icon to capture a single viewport.
  7. When the review is finished, from the MR General Review upper right corner, click the Exit icon.
    • Respond to any prompts, which vary based on your Export preferences.