BrainLAB IGRT System QA
BrainLAB Frame-based System
Target Localizer for
Frame Based Treatment
BrainLAB Frame-based System QA
Winston Lutz Test
Align Room Laser with
Phantom Pointer
Winston Lutz Test
Gantry 0,
Couch 0
Gantry 90,
Couch 0
Gantry 180,
Couch 0
Gantry 270,
Couch 0
Gantry 0,
Couch 270
Gantry 0,
Couch 315
Gantry 0,
Couch 45
Gantry 0,
Couch 90
BRAINLAB FRAMELESS SRS/SRT
WORKFLOW
Infra Red System for
Patient Pre-positioning
Flat Panel X-ray for Image Fusion
Patient Positioning and Treatment
Image Registration and Calculation of Shift
After Winston-Lutz Test
Calibration of Isocenter Position
ET Isocenter Phantom
Verify the Isocenter Calibration
• Place the E T isocenter phantom on the couch
• Use automatic couch positioning to position
the phantom
• Make sure the laser align with the markings
on the phantom
X-ray Calibration
• Place phantom on couch
• Perform auto-positioning
• Take x-ray image for each
of the tubes
• Verify that all 8 markers
can be identified on the
radiograph
ET X-ray Calibration Phantom
X-ray Calibration
Validate the X-ray Calibration
• Align ioscenter
phantom with
room laser
• Take radiograph of
the isocenter
phantom
• Perform image
registration and
couch shift
• Check that the shift
is within 1 mm
Verifying Isocenter Position
• Detect the Winston Lutz Pointer
Center of the radioopaque sphere
Isocenter
determined during
x-ray calibration