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syngo Volume Evaluation
2.Preparing Volume Calculation
Before you start the volume definition, first optimize
the display of the images. To make interactive volume
definition easier, you can
• delete images that you do not require for volume cal-
culation from the original data set
• change the display of the images in the MIP/results
segment using the display mode (MaxIP, MinIP or
MPR) and the slice thickness
• scroll through the image stack
• window, zoom and pan images
• show/hide image text display
• set evaluation limits: Using the evaluation limits you
can perform volume calculation within a defined HU
value range
3. Planning a Volume
Volume Evaluation offers different tools and methods
to plan a volume.
• You can use the Automatic Volume Detection fea-
ture, where the system automatically defines a vol-
ume around a seed point. Volume CT searches for
directly connected voxels within a defined HU range
and assigns them to the volume.
• You can use the Interactive Volume Definition,
where you draw either elliptical or freehand regions
of interest (ROIs) on the images. The ROI contours
define the outer border of the volume.
C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 292 Friday, April 8, 2005 9:55 AM