Appendix E  Advanced Feature Controls 
Instructions for Use  E  -   7  
Render Mode  Renders the volume using the selected rendering method:  
  Opacity — Smoothes image contours, creating a soft, sculptured appearance for 
highlighting surface features. Uses the selections for opacity percentage, thresholds, and 
smoothing. 
  MinIP (Minimum Intensity Projection) — Limits the display to minimum-value pixels by 
selecting pixels with the lowest value along each projection of the volume. May be helpful in 
visualizing hypo-echoic lesions and large vascular structures. 
  MaxIP (Maximum Intensity Projection) — Limits the display to maximum-value pixels by 
selecting pixels with the highest value along each projection of the volume. May be helpful 
in visualizing hyper-echoic structures and fetal skeletons. 
  MeanIP (Mean Intensity Projection) — Limits the display to average-value pixels by 
selecting pixels with the arithmetic mean (average) value along each projection of the 
volume. 
  Gradient Light — Simulates the reflection of light off a surface, resulting in improved depth 
perception. 
  Amnioscopic — Simulates scattering of directed light within an object, producing 
translucency and shadowing effects. 
  Surf. Shading — Heightens contrast, creating a textured appearance for highlighting 
internal features. Uses the selected shading, opacity percentage, and thresholds. 
Note: Surf. Shading is available only when CDE is activated. 
Note: Only Opacity, Gradient Light, and Amnioscopic rendering modes are available when 
skeletal rendering is activated. 
Note: For systems without a touch screen, the selection is on the LED panel. 
Format  Selects a display format: 
  1:1 — Displays only the selected quadrant, in full-screen display format. 
  4:1 — Displays all four quadrants. 
  2:1 — Displays the acquisition plane on the left of the screen and the volume on the right. 
  1:3 — Displays the volume on the left of the screen and the three MPRs on the right.  
Note: For systems without a touch screen, the selection is assigned to a soft key.
 
VOI  3-Scape Volume of Interest 
Activates or deactivates the volume of interest. 
  On 
Low Thresh  Low Threshold  
Sets the low threshold for the opacity curve. Removes 2D-mode data (voxels) from the volume 
that have values lower than the selected threshold.  
  0 to 254  
Note: For systems without a touch screen, the selection is on the LED panel.