5. When performing a gated exam, set up the patient monitor and check that a trace is
displayed to verify that the system is receiving the ECG monitor signal.
○
Click
On
to enable gating.
○
If the ECG signal has not been detected, the system displays a message to check the
connection. Check that all ECG leads are connected to the patient and that the monitor
power is on. See the
Cardiac
chapter for more details.
6. Click [Confirm Settings].
7. Press <Move to Scan>.
NOTE:
<Move to Scan> flashes green on the scan control interface indicating you need to
press it.
Press <Stop Move> if you need to stop table movement.
8. Press <Start Scan>.
○
Press <Stop Scan> if you need to stop the scan.
○
Press <Pause Scan> if you need to pause the current scan.
■
This finishes the current scan, then pauses the next scan. Click <Resume> when
you are ready to scan again.
■
In Axial scans, the scan stops after the next scan.
■
In Helical scans, the entire scan is completed. Use <Stop Scan>; not <Pause Scan>.
9. Repeat the previous two steps to acquire the second scout scan.
10. Click [Continue] to move to the next scan task.
3.3.5 Adjust the Graphic Rx
Use this procedure to adjust the graphic prescription and set up a scan series. If your protocol is
set up correctly, you may not need to make many changes. You can just adjust the graphic lines
representing the series and confirm.
1. Press and hold <Shift> and click and drag the center
X
to position the graphic lines over the
anatomy you want to cover.
○
The slices are represented as a group of lines on the scout image. The start location is
demonstrated with a solid square in the middle of a line. The end location is
demonstrated by an open square box in the middle of a line.
○
The
X
allows you to move the lines up and down on a lateral scout, and side to side on
an Anterior/Posterior (A/P) scout.
○
By moving the lines, you are adjusting the start and end locations, and the Right Anterior
Superior (RAS) coordinates.
○
If you change the landmark after the scout has been completed, Graphic Rx will not let
you to change A/P centers on a lateral scout. Since the landmark changed, a new scout
should be acquired so Graphic Rx can be used.
Revolution CT User Manual
Direction 5480385-1EN, Revision 1
Chapter 11 Scan
257
