Brainlab EXACTRAC INFRARED MONITORING Clinical User Manual page 66

Available Views
Contents of the
Positioning Views
Positional Positional indicators for aligning the treatment isocenter to the linac isocenter are provided to the
Indicators right and at the bottom of the screen.
66
View
Positioning Views
Camera Tracking
Views
Component
Indicator
Shift indicators
The position and angle indicators display patient coordinate system values in accor-
dance with IEC 61217. As soon as the table is rotated out of the default position, the
values indicated by the patient coordinate system will differ from those indicated by
the linac coordinate system.
Function
Two positioning views are provided at the center of the screen:
• Top Laser View (this view is always shown)
• Left Laser View or Right Laser View
Whether the left or right laser view is shown can be configured under
General Settings ... in the Options menu (see "View Settings" on
page 53).
The view direction in each case is indicated by a patient icon
bottom left of each image view.
The number of markers detected by each camera lens is indicated in
the tracking views bottom right of the screen.
Function
The crosshair at the center of each view represents the linac isocen-
ter.
The position of the infrared body markers defined when the infrared
reference was stored are shown as blue crosses.
The current position of the infrared body markers attached to the pa-
tient are shown as red spheres.
Function
The Vertical, Longitud., and Lateral shift indicators specify the po-
sition of the treatment isocenter relative to the linac isocenter.
All values are displayed in mm.
Clinical User Guide Rev. 1.1, ExacTrac Infrared Monitoring Ver. 1.0