To address the quality control of the isocenters, we offer the ISOCENTERS QA Pack
For these packs, we follow these recommendations:
The French decision of July 27, 2007, which establishes the internal quality control procedures for external radiotherapy installations.
The French decision of 28/02/2023 establishing the procedures for the quality control of external radiotherapy and radiosurgery installations.
Recommendations from the AAPM TG-142 report.
Main measured parameters
Isocenter of 2D kV Imaging
Distance from Image Center/Reference
Distance from 2D kV Isocenter/Reference
Size of 2D kV Isocenter
Coincidence of 2D kV Isocenters/MV
Mechanical Isocenter
Distance from Mechanical Isocenter/Reference
Size of Mechanical Isocenter
Coincidence of Mechanical Isocenters/MV
kV-CBCT Imaging Isocenter
Distance from kV-CBCT Isocenter/Reference
Size of kV-CBCT Isocenter
Coincidence of kV-CBCT Isocenters/MV
MV Treatment Isocenter
Distance from MV Treatment Isocenter/Reference
Size of MV Treatment Isocenter
Axes of Rotation for Collimator, Arm, and Treatment Table
Distance :
Center of Field/Reference for each image
Collimator Rotation Axis/Reference
Treatment Table Rotation Axis/Reference
Diameter
Collimator Rotation Axis
Arm Rotation Axis
Treatment Table Rotation Axis