syngo Volume Evaluation
Restricting Automatic Volume Detection
You can restrict Automatic Volume Detection to a defined smaller volume.
•Draw an ROI around the image area of interest on at least the first and the last image that you want to be included in the volume. The ROIs define the bound- ing box for the automatic approach.
•Check the Thresholds and set the seed point inside the object to be detected.
•Region growing only includes voxels that fulfill the following conditions:
–Their HU value lies within the thresholds.
–They are connected to the seed point.
–They lie inside the bounding box.
3.2Planning a Volume with the Interactive Volume Definition
For structures that are not so well defined, it is recom- mended to use the Interactive Volume Definition method. You can precisely adapt the ROIs to complex body structures.
You can draw either elliptical or freehand ROIs on the transversal images or on the thick slice images (for fast navigation).
294
