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AJNR - American Journal of Neuroradiology

Published ahead of print on May 20, 2009
doi: 10.3174/ajnr.A1654

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American Journal of Neuroradiology 30:1285-1292, August 2009
© 2009 American Society of Neuroradiology

Review Article

Conebeam CT of the Head and Neck, Part 2: Clinical Applications

A.C. Miracle^a and S.K. Mukherji^a,b,c

^a Departments of Radiology, University of Michigan Health System, University Hospital, Ann Arbor, Mich
^b Otolaryngology, University of Michigan Health System, University Hospital, Ann Arbor, Mich
^c Radiation Oncology, University of Michigan Health System, University Hospital, Ann Arbor, Mich

Please address correspondence to Aaron Miracle, University of Michigan Medical Center, Department of Radiology, B2B311 UH SPC 5030, 1500 East Medical Center Dr, Ann Arbor, MI 48109-5030; e-mail: amiracle{at}med.umich.edu

SUMMARY: Conebeam x-ray CT (CBCT) is being increasingly used for point-of-service head and neck and dentomaxillofacial imaging. This technique provides relatively high isotropic spatial resolution of osseous structures with a reduced radiation dose compared with conventional CT scans. In this second installment in a 2-part review, the clinical applications in the dentomaxillofacial and head and neck regions will be explored, with particular emphasis on diagnostic imaging of the sinuses, temporal bone, and craniofacial structures. Several controversies surrounding the emergence of CBCT technology will also be addressed.