Operator Manual
22
of 52 SPR2-310.620.30.02.02
Examination
Performing
subtraction
angiography
Prerequisite: The patient to be examined has been registered.
â—† Make the necessary settings for the examination.
(→ Page 11)
â—† Set the Subtraction mode in the Examination task card or by pressing the
corresponding key on the control panel.
– The symbol for the current operating mode, Subtraction, is displayed.
– The LED of the Sub key lights up.
â—† Before starting the exposure, click the Native tab on the right monitor.
–The Native task card is placed into the foreground.
â—† Release radiation with the hand switch or with the assigned footswitch.
– During the generation of the mask the native image is displayed on the
right monitor.
â—† Inject the contrast medium as soon as the syringe symbol appears on the
screen.
Keep the radiation release button pressed until the vessel is filled with contrast
medium.
– On the left monitor you can see the continuous filling of the blood vessel
with contrast medium.
– After radiation has been switched off, the left monitor shows a subtraction
image with accumulated contrast medium (maximum fill image). The right
monitor shows the image with the largest fill phase and anatomical back-
ground (native).
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