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Maxillofacial cone beam computed tomography: essence, elements and steps to interpretation
Author(s) -
Scarfe WC,
Li Z,
Aboelmaaty W,
Scott SA,
Farman AG
Publication year - 2012
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.2011.01657.x
Subject(s) - cone beam computed tomography , interpretation (philosophy) , computed tomography , cone (formal languages) , tomography , beam (structure) , medical physics , medicine , nuclear medicine , physics , optics , radiology , computer science , algorithm , programming language
Maxillofacial cone beam computed tomography (CBCT) is one of the most significant advances in dental imaging since rotational panoramic radiography. While the acquisition of CBCT data is technically simple, numerous parameters should be considered so that CBCT imaging is performed appropriately and ‘task specific’. This involves an understanding of not only exposure (e.g. geometric and software parameters to minimize patient dose, while sustaining diagnostic image quality) but also image formatting options to maximize image display. CBCT images contain far more detailed information of the maxillofacial region than do panoramic or other 2‐D images and necessitate a thorough knowledge of the 3‐D anatomy of the region and considerations of variability in the range of the anatomically normal. These principles, procedures and protocols, together with the interpretation of CBCT images form the basis of best practices in maxillofacial CBCT imaging. This communication aims to provide: (1) an overview of the fundamental principles of operation of maxillofacial CBCT technology; (2) an understanding of ‘task specific’ equipment, image selection and image display modes; and (3) a systematic methodology for sequencing interpretation of CBCT images.