VATECH A9 Handbuch Seite 74

5. Acquiring CBCT Images
5.6.2 Head-up posture
For patients with head-up posture, artifacts may occur as shown in the image below.
(arranged in a flat form image)
Make sure the patient does not up their head.
Normal C-shaped neck
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Head-up posture
Artifact Occurrence
(arranged in a flat form image)
vatech A9 (PHT-30CSS) User Manual