
9. Acquiring CBCT Images
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vatech A9 (Model name: PHT-30CSS) User Manual
9.8
Image Comparison according to Patient Position – Incorrect
Posture
9.8.1 Forward head posture (Turtle neck syndrome)
For patients with forwarding head posture, artifacts may occur as shown in the image
below. (Cervical part Ghost image)
Position the patient's back and cervical spine in a position that is as straight as
possible.
Normal C-shaped neck
Forward head posture
(Turtle neck syndrome)
Artifact Occurrence
(Cervical Spine Part Ghost )
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