Preinstalled Scanner Software


Scanner Pre-installed Software



All Conebeam scanners come with preinstalled software
for image manipulation, for added image functionality. Such imaging tools
include:


• Multi Planner Reformats MPR,
3D volume data is usually acquired in the axial plane of the patient (top
to bottom slices). MPR creates sagital, coronal and transverse images from
those axial images (basically front view and side view slices). The display
of the images in such formats allows the effective visualization of section
to section change in the scanned structure. MPR images are available in all
pre-installed Conebeam scanner software. The software also allows you to take
measurements on the slices and measure Hounsfield
values
.



Sample MPR from Conebeam data


• Panoramics, Conebeam
images could be used to generate accurate 3D panoramic slices along a specified
curve either using pre-installed software that comes with the Conebeam machine
or 3rd party software. Panoramic
images generated from Conebeam scanners are more accurate than conventional
panoramic images
for 2 main reasons:


1. No tissue superimposition

2. No image distortion, ie 1 to 1 scale images for accurate measurements





Sample panoramic slice created from Conebeam data.
Note very rare case of impacted second molar



Sample Cross sectional slices through
panoramic images displayed earlier (note impacted Tooth)

• Maximum Intensity
Projections (MIP)
, MIP algorithm evaluates each Conebeam voxel along
a ray through the viewer’s line of site and the maximum voxel value
is selected as the pixel to be displayed in the resulting image. Such representation
allows the viewer to appreciate the depth of the rendering.


Sample Conebeam MIP

• Visualization of Mandibular canal:

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• 3D Volume Rendering, This technique
renders the entire volume of Conebeam data, by summing up the value of each
voxel along the viewer’s line of sight through the complete data set.
The process is done repeatedly to determine the pixel value to be displayed
in the resulting image. 3D volume renderings allows:

• Realistic visualization of 3D volume data
• Characterization of disease
• Appreciation of anatomic relationships



I-Cat 3DVR software
Sample Bone 3D Volume Rendering of Conebeam Data set
I-Cat 3DVR software
Sample Bone 3D Volume Rendering of Conebeam Data set


Newtom software 3D volume renderings