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Comparison CBCT and CT
FPD CT scanners are inferior to CT scanners with regard to:
•
Output of the x-ray tube, output is higher for CT scanners
(noise)
•
Axial coverage (field of view), coverage is better for CT
scanners
•
Rotation speed, CT scanners rotate faster
•
Quality of the detector, CT scanner detectors have better
performance
FPD CT scanners are superior to CT scanners with regard to:
•
Spatial resolution (voxel size, not so much in radiotherapy)
•
Z-axis coverage