8-8
29. From the preview scan, access the QA Test images for
evaluation by double clicking Coronal View. (bottom image,
2
nd
from the right).
30. In the top-right image of the Coronal View, slide the Horizontal
line up to bring the Housfield Unit centers into view. In the top-
left image, slide the Vertical and Horizontal lines to the
Hounsfield Unit centers as shown below.
31. Zoom the top-left image. To zoom, start at the lower right corner
of the image and hold down left mouse button and drag the
cursor across the image.
For consistency, ensure that the slice selection to be measured is
setup as follows.
a. Right click top-left image and select Set Filter > Normal
b. At the bottom of the top-right image scale, click and hold
the cursor on the ● symbol. The slice thickness is displayed.
Slide the cursor up to change the value to 0.4 mm.
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