Image artifact in dental cone-beam CT

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
Akitoshi KatsumataRobert P Langlais

Abstract

The purpose of this study was to investigate the appearance and possible cause of an artifact seen in limited-volume cone-beam CT imaging. A water-filled plastic cylinder was used as a phantom of the head. A test object was constructed as a bone-equivalent phantom to be imaged. The test object was variously positioned at the center of the phantom and near its margins. CT images of the test object were acquired using a 3DX Accuitomo system. In slice images with the test object positioned near the margin of the phantom, arch-shaped defects or deformities were observed on the side of the object. There was a negative correlation between the artifact and the CT value of the object. The artifact was larger in images scanned with a higher voltage. The probability that this artifact is caused by halation from the image intensifier (II) system is suggested.

References

Feb 15, 2001·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·K HondaP L Westesson
Jul 2, 2002·Radiology·Ulrich LinsenmaierKlaus Jürgen Pfeifer
Mar 11, 2003·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Koji HashimotoMasaaki Terakado
Aug 15, 2003·Dento Maxillo Facial Radiology·A N van DaatselaarP F van der Stelt
Feb 8, 2005·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Dirk SchulzeRainer Schmelzle

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Citations

Jan 16, 2008·Dento Maxillo Facial Radiology·A SuomalainenJ Peltola
Jun 24, 2011·Dento Maxillo Facial Radiology·R SchulzeE Schoemer
Mar 7, 2014·Dento Maxillo Facial Radiology·H LingJ Yang
Aug 24, 2010·Dento Maxillo Facial Radiology·P MahW D McDavid
Jun 6, 2012·Journal of Applied Oral Science : Revista FOB·Daniel Almeida DecurcioCarlos Estrela
Jul 3, 2013·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Fabiane AzeredoRogério Belle de Oliveira
Nov 19, 2015·The British Journal of Radiology·Cosimo NardiStefano Colagrande
Oct 16, 2012·International Journal of Oral and Maxillofacial Surgery·Ramon Bernades-MayordomoFederico Hernández-Alfaro
Nov 15, 2011·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Gerlig WidmannReto Bale
Jul 27, 2011·Journal of Endodontics·Mitchell EdlundUmadevi P Nair
Jan 18, 2011·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·UNKNOWN American Association of Endodontists, UNKNOWN American Academy of Oral and Maxillofacial Radiology
May 12, 2009·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Gerlig WidmannReto Bale
May 26, 2009·International Journal of Oral and Maxillofacial Surgery·W De VosG R J Swennen
Mar 11, 2009·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Ricardo Affonso BernardesClovis Monteiro Bramante
Jan 3, 2009·International Journal of Oral and Maxillofacial Surgery·G R J SwennenF Schutyser
Aug 22, 2008·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Akitoshi KatsumataRobert P Langlais
Oct 22, 2008·Journal of Endodontics·Carlos EstrelaJesus Djalma Pécora
Jul 7, 2007·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Robert A MischkowskiJoachim E Zöller
Apr 24, 2007·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Akitoshi KatsumataRobert P Langlais
Aug 9, 2008·Australian Dental Journal·P A Monsour, R Dudhia
Jul 15, 2011·Dental Traumatology : Official Publication of International Association for Dental Traumatology·Lu TangDing-ming Huang
Mar 20, 2016·International Journal of Oral and Maxillofacial Surgery·R Bernades MayordomoF Hernández Alfaro
Nov 19, 2011·Clinical Oral Implants Research·Munetaka NaitohEiichiro Ariji
Oct 11, 2011·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Elnaz MoslehifardFarhang Mahboub
Oct 20, 2009·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Masahiro IikuboTakashi Sasano
Apr 5, 2013·Clinical Implant Dentistry and Related Research·Yan HuangReinhilde Jacobs
Dec 17, 2014·International Journal of Computer Assisted Radiology and Surgery·Nhat Linh BuiKelvin Weng Chiong Foong
Jun 19, 2013·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Roberto Molteni
Jan 7, 2011·Computer Methods and Programs in Biomedicine·Tuan D Pham
Oct 1, 2014·International Journal of Legal Medicine·O IbáñezM I Huete
Mar 26, 2013·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Matheus L OliveiraSanjay M Mallya
Jun 29, 2016·Journal of Oral Science·Enes GüngörRemzi Çevik

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