Philips Azurion - 8.8 Using Subtraction; 8.8.1 Changing the Subtraction Mask

For example, moving the le shuer line t
o the right when using symmetric lines, will also cause
the right shuer line to move to the le.
4 To set each line to move independently, clear the Use symmetric lines check box.
5 To move a line, drag it to the desired posion.
NOTE The shuer lines disappear in the acquision window when acquision starts or when a
new task is selected in the control panel. To move the shuer lines aer they have
disappeared, you must rst reselect Image Cropping in the control panel.
6 To reset all image processing changes, click Reset in the control panel, or click Reset image
processing on the toolbar.
8.8 Using Subtracon
Subtracon can assist with orientaon in the anatomy when reviewing series, and can help you
visualize blood vessels in so ssue by removing details that do not relate to the contrast-lled vessels.
Subtracon uses a mask image. You can select the mask from the same series, or subtract one series
from another series.
1 Open the series that you want to perform postprocessing on.
2 Select the Processing task.
3 Select Vascular Tools.
4 To start subtracon, do one of the following:
a To use a single mask image, select Image Subtracon.
This funcon subtracts all images in a series from one single mask image.
NOTE You can also select Image Sub
tracon using the toolbar.
b To subtract one series from another series, select Series Subtracon
This funcon subtracts all images in a series from the corresponding images (images with the
same image number) in another series from the same study.
8.8.1 Changing the Subtracon Mask
You can change the mask used for subtracon by selecng another image from the current series or by
selecng another series within the same study. This is also known as remasking.
Ensure that subtracon is switched on. For more informaon, see Using Subtracon (page 137).
1 Select the Processing task.
2 Select Vascular Tools.
3 If you are using the touch screen module, tap Remask.
4 If you are using Image Subtracon, use one of the following funcons to select a new mask image:
Processing Using Sub
tracon
Azurion Release 1.2 Ins
trucons for Use 137 Philips Healthcare 4522 203 52421