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If two sets are selected, images in the two sets are paired according to physical location
in the patient’s body. Unpaired images are ignored.
3. On the
Image Combination
window, click the left [Select Set].
4. If you are adding/subtracting two sets of images, select the second set of images, and click
the right [Select Set].
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By default, equal weighting is applied to the pixels in each pair, but you can use the
Ratio
slider to change the weighting values.
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Drag the slider to the left to increase the pixel weighting of the images on the left [Select
Set] button. Drag the slider to the right to increase the pixel weighting of the images on
the right [Select Set] button.
5. Click [+] or [-].
6. For subtraction, click [Accept Negative Pixels] unless you want the negative pixel values set
to 0 in the resulting image.
7. Typically, use the system provided series number.
8. Click [=] (equal sign) to generate the images in the exam defined by the left [Select Set]
button.
9. To repeat the add/subtract procedure with a new series number and description, click [New
Save Series].
2.4 Bind series
To combine images from different series to create a new series, follow the steps below.
Processed images will be annotated with the date.
1. In File Manager, highlight the exam you want to work with, right click and select [Add/Sub] to
open the
Image Combination
window. Alternatively, highlight the series you want to work
with, right click and select [Open with], then [Add/Sub].
2. Select the images.
3. Click the left [Select Set] button.
4. Click the right [Select Set] button.
5. Click [Bind].
Use the system-provided series number, or enter a new series number in the
Save Series
field and a name in the
Description
field.
6. Click [=] to generate the images in the exam defined by the left [Select Set] button.
7. To repeat the add/subtract procedure with a new series number and description, click [New
Save Series].
2.5 Create images with min/max values
To create a new image using only the minimum or maximum CT numbers, follow the steps
below. The resulting images are annotated with the day on which the addition/subtraction was
performed.
Revolution CT User Manual
Direction 5480385-1EN, Revision 1
Chapter 15 Display Applications
417