GE Revolution CT User Manual page 251

○
Release the foot pedal when the patient is properly positioned. Use the gantry controls
to further adjust the position.
5. Make the patient comfortable and immobilize as needed. Connect body straps to the cradle
and wrap them around the patient.
○ Use the head holder straps to immobilize the patient's head.
○
Make sure items such as blankets and straps are not hanging off the table or allowed to
touch or be dragged through the gantry during the scan, otherwise artifacts may appear
in the images.
6. If needed, attach the IV pole.
7. Use the following gantry controls to refine the patient's position:
Table Up
Cradle In
NOTE: If it is not possible to move the table down:
○
○
○
○
8.
From the gantry controls, press the <Laser Alignment Light> button
laser lights: internal and external (axial, sagittal, and coronal). Align the laser lights with the
target anatomical reference.
Do not position the patient with the laser lights shining into his eyes.
9.
From the gantry controls, press the <Internal Landmark>
Landmark>
landmark button.
○ The landmark sets a known anatomical reference for the radiologist to correlate
anatomy.
○
The landmark sets the zero location. When scanning towards the patient's head, you are
scanning superior to the zero location. When scanning towards the patient's feet, you
are scanning inferior to the zero location. You should set the zero location to known
Chapter 11 Scan
Check to make sure there is nothing blocking the table or gantry path.
Check the gantry display or the message log for collision sensor errors, which
prevent downward movement.
Resolve any issues and press the table up/down buttons.
If the problem persists, contact your service representative.
button. You can not click [Confirm Settings] until after you have pressed a
Revolution CT User Manual
Direction 5480385-1EN, Revision 1
Table Down
Cradle Out
button or the <External
to turn on the two
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