Additional Info

Orbit Volume Computation

Stratovan Maxillo™ computes orbit (eye socket) volumes and bony contour shapes directly from x-ray computed tomography (CT) image data. Maxillo is intended for research use only by otolaryngologists, ENTs, plastic, and maxillofacial researchers investigating orbit morphology, shape, volume, and globe position. Maxillo utilizes a patent-pending image segmentation method.
Automatic
  • Compute a bony orbit volume in under five minutes.
  • No more manual tracing of segmentations slice by slice. Maxillo performs the segmentation automatically.
  • Patent pending segmentation technology.
Accurate
  • Phantom calibrated volume measurements.
  • Accurate orbit volumes to within 1cc.
  • Handles normal, repaired, and trauma patient CTs.
Repeatable
  • Less than 1cc error between operators.
  • Easy to use interface to ensure reproducibility.
Exophthalmometry
  • Globe displacement computations.
  • Exophthalmos/enophthalmos measurements.
3D Visualization
  • Fully interact in 3D.
  • Bone surface.
  • Semi-transparent volume visualization.
  • Multi-planar 3D reconstruction.
  • Multi-slice views.
   
 
How Does it Work?
Place landmarks on scan
 
Our patent-pending computation process finds the orbit delineation
Expansion Step 1 Expansion Step 2 Expansion Step 3
A
B
C
Image A shows the expansion process in the orbit interior. Image B shows the delineation of the anterior orbit opening; resulting in a reliably defined anterior surface. Image C shows a cut-away of the extracted orbit countour surface.
 
 
Evaluate the results
Maxillo Results Axial Maxillo Results Coronal Maxillo Results Sagittal
Axial
Coronal
Sagittal
Slices through the extracted orbit contour for axial, coronal, and sagittal planes. The blue circle indicates the globe. Notice that soft-tissue does not interfere with the process; the delineation method is invariant to tissue swelling. Also notice the air pockets within the orbit interior (most clear in the coronal and sagittal images). These air pockets are small and do not cause any issues with the delineation method.