Brainlab EXACTRAC INFRARED MONITORING Clinical User Manual page 41

Performing
Isocenter
Calibration
Clinical User Guide Rev. 1.1, ExacTrac Infrared Monitoring Ver. 1.0
Steps
1. Select Isocenter Calibration in the Calibration screen (see page 37), and confirm with
Next. The Isocenter Calibration screen is shown:
2. Ensure that the phantom is aligned with the room lasers and within the camera field of
view (marker spheres are shown in blue).
3. Press Calibrate in the Isocenter Calibration screen to activate isocenter calibration.
4. If the isocenter you have defined differs significantly from the previous setting, a corre-
sponding prompt is displayed.
• Ensure that the calibration phantom is correctly positioned, and that it and the system
are not damaged.
• Confirm this prompt if you wish to continue with your new settings.
5. Once calibration has been completed:
• An OK message is displayed.
• Successful calibration is indicated at the bottom of the screen.
6. Press Finish.
Do not move the phantom on the couch top during the calibration process.
Figure 14
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