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Artefacts in CBCT: a review.

R Schulze¹, U Heil, D Gross

¹Department of Oral Surgery (and Oral Radiology), University Medical Center of the Johannes Gutenberg-University, Augustusplatz 2, 55131 Mainz, Germany. rschulze@mail.uni-mainz.de

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Summary

Cone beam CT (CBCT) imaging artifacts are common due to discrepancies between mathematical models and physical processes. Understanding these artifacts is crucial for accurate diagnosis using 3D CBCT data.

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Area of Science:

Medical Imaging
Radiology
Dental Imaging

Background:

Cone beam CT (CBCT) is widely used in dentistry and medicine.
Image artifacts are frequently encountered in CBCT scans.
Artifacts can negatively impact diagnostic accuracy.

Purpose of the Study:

To discuss prominent artifacts in CBCT imaging.
To review existing scientific knowledge on CBCT artifacts.
To explain the relationship between artifacts and the 3D reconstruction process.

Main Methods:

Literature review of prominent CBCT artifacts.
Discussion of artifact origins related to imaging physics.
Brief overview of 3D reconstruction principles in CBCT.

Main Results:

Identified and discussed common CBCT artifacts.
Highlighted the link between imaging discrepancies and artifact formation.
Provided context on 3D reconstruction's role in artifact generation.

Conclusions:

Awareness of CBCT artifacts is essential for all users.
Artifacts stem from deviations in the imaging process.
Understanding 3D reconstruction aids in comprehending artifact causes.