PSEUDO TEETH- A CONE BEAM COMPUTED TOMOGRAPHY ARTEFACT

Sahana K., Vijayendranath Nayak*, Raghavendra Kini, Prasanna Kumar Rao, Gowri P. Bhandarkar, Roopashri Rajesh Kashyap

ABSTRACT

Artefacts are common in Cone beam computed tomography (CBCT). There can be many reasons for the artefacts usually it can be due to discrepancies between the mathematical modelling and the actual physical imaging process. Artefacts seen in CBCT are Extinction artefacts, Beam hardening artefacts, Partial volume effect and EEGE, Aliasing artefacts, Ring artefacts; and. Motion artefacts (misalignment artefacts). Since artefacts may interfere with the diagnostic process performed on CBCT, every user should be aware of their presence. Herein we report a case on Beam hardening artefact seen in CBCT.

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