Siemens syngo CT 2005C - Manual (Page 295)

syngo Volume Evaluation
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The contours of the ROIs define the outer border of the
evaluated volume. You do not need to define the ROIs
on every slice. The system automatically interpolates
ROIs on the images which lie between the images with
defined ROIs.
• Check the images and search for the desired object
structure.
• You can start on any image in segments 3 or 4.
We recommend displaying an image that shows the
center of the desired structure.
• Draw an ROI around the area that is to be considered
to be part of the object structure.
• Do the same on another image, for example, the first
or last image that shows the structure.
The system automatically inserts ROIs on the inter-
mediate images. These ROIs are drawn with a dotted
line to indicate that they are assumed for the evalua-
tion of the volume, but that they are not confirmed
by you. The contour of a user-defined ROI is a solid
line. All ROIs have the same color and number.
• Scroll through the images and modify, if necessary,
the interpolated ROIs to the true structure of the
desired volume. You can edit an interpolated ROI or
replace it with a new ROI.
• To extend the volume, insert an ROI before/after the
first/last image on which an ROI is already defined.
C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 295 Friday, April 8, 2005 9:55 AM