scholarly journals Use of Cone Beam Computed Tomography in Endodontics

2009 ◽  
Vol 2009 ◽  
pp. 1-20 ◽  
Author(s):  
William C. Scarfe ◽  
Martin D. Levin ◽  
David Gane ◽  
Allan G. Farman
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Low Dose ◽  
Imaging Modality ◽  
Three Dimensional ◽  
Field Of View ◽  
Cone Beam ◽  
Small Field ◽  
Endodontic Diagnosis ◽  
Small Field Of View

Cone Beam Computed Tomography (CBCT) is a diagnostic imaging modality that provides high-quality, accurate three-dimensional (3D) representations of the osseous elements of the maxillofacial skeleton. CBCT systems are available that provide small field of view images at low dose with sufficient spatial resolution for applications in endodontic diagnosis, treatment guidance, and posttreatment evaluation. This article provides a literature review and pictorial demonstration of CBCT as an imaging adjunct for endodontics.

scholarly journals Distribution of metal artifacts arising from the exomass in small field-of-view cone beam computed tomography scans

2020 ◽  
Vol 130 (1) ◽  
pp. 116-125
Author(s):  
Amanda P. Candemil ◽  
Benjamin Salmon ◽  
Deborah Queiroz Freitas ◽  
Francisco Haiter-Neto ◽  
Matheus Lima Oliveira
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Field Of View ◽  
Cone Beam ◽  
Small Field ◽  
Metal Artifacts ◽  
Computed Tomography Scans ◽  
Small Field Of View

Incidental Findings in Small Field of View Cone-beam Computed Tomography Scans

2017 ◽  
Vol 43 (6) ◽  
pp. 901-904 ◽  
Author(s):  
David G. Oser ◽  
Brett R. Henson ◽  
Elaine Y. Shiang ◽  
Matthew D. Finkelman ◽  
Robert B. Amato
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Incidental Findings ◽  
Field Of View ◽  
Cone Beam ◽  
Small Field ◽  
Computed Tomography Scans ◽  
Small Field Of View

scholarly journals Contrast-to-noise ratio difference in small field of view cone beam computed tomography machines

2012 ◽  
Vol 54 (3) ◽  
pp. 227-232 ◽  
Author(s):  
Boulos Bechara ◽  
Clyde A. McMahan ◽  
William S. Moore ◽  
Marcel Noujeim ◽  
Hassem Geha ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Field Of View ◽  
Cone Beam ◽  
Small Field ◽  
Ratio Difference ◽  
Noise Ratio ◽  
Small Field Of View

Cone-Beam Computed Tomography Allows Accurate Registration to Surgical Navigation Systems: A Multidevice Phantom Study

2019 ◽  
Vol 33 (6) ◽  
pp. 691-699 ◽  
Author(s):  
Benjamin J. Talks ◽  
Karan Jolly ◽  
Hanna Burton ◽  
Hitesh Koria ◽  
Shahzada K. Ahmed
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Surgical Navigation ◽  
Imaging Modality ◽  
Field Of View ◽  
Cone Beam ◽  
Navigation Systems ◽  
Registration Error ◽  
Surgical Navigation Systems ◽  
Phantom Head

Background Cone-beam computed tomography (CBCT) is a fast imaging technique with a substantially lower radiation dosage than conventional multidetector computed tomography (MDCT) for sinus imaging. Surgical navigation systems are increasingly being used in endoscopic sinus and skull base surgery, reducing perioperative morbidity. Objective To investigate CBCT as a low-radiation imaging modality for use in surgical navigation. Methods The required field of view was measured from the tip of the nose to the posterior clinoid process anteroposteriorly and the nasolabial angle to the roof of the frontal sinus superoinferiorly on 50 consecutive MDCT scans (male = 25; age = 17–85 years). A phantom head was manufactured by 3-dimensional printing and imaged using 3 CBCT scanners (Carestream, J Morita, and NewTom), a conventional MDCT scanner (Siemens), and highly accurate laser scanner (FARO). The phantom head was registered to 3 surgical navigation systems (Brainlab, Stryker, and Medtronic) using scans from each system. Results The required field of view (mean ± standard deviation) was measured as 107 ± 7.6 mm anteroposteriorly and 90.3 ± 9.6 mm superoinferiorly. Image error deviations from the laser scan (median ± interquartile range) were comparable for MDCT (0.19 ± 0.09 mm) and CBCT (CBCT 1: 0.15 ± 0.11 mm; CBCT 2: 0.33 ± 0.18 mm; and CBCT 3: 0.13 ± 0.13 mm) scanners. Fiducial registration error and target registration error were also comparable for MDCT- and CBCT-based navigation. Conclusion CBCT is a low-radiation preoperative imaging modality suitable for use in surgical navigation.

scholarly journals Use of Cone Beam Computed Tomography in the Diagnosis of Superior Semicircular Canal Dehiscence

2014 ◽  
Vol 4 ◽  
pp. 49 ◽  
Author(s):  
Ilson Sepúlveda ◽  
Thomas Schmidt ◽  
Enrique Platín
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Semicircular Canal ◽  
Imaging Modality ◽  
Three Dimensional ◽  
Cone Beam ◽  
Unknown Etiology ◽  
Superior Semicircular Canal Dehiscence ◽  
Superior Semicircular Canal ◽  
Canal Dehiscence

Superior semicircular canal dehiscence is a relatively new syndrome in the field of otology. It is of unknown etiology presenting with a variety of vestibular and auditory symptoms and radiologic findings play a crucial role in its diagnosis. Cone beam computed tomography has been shown to be a powerful tool in the field of otolaryngology. It is a three dimensional technique that uses lower radiation resulting in fewer artifacts and offers higher resolution when compared with multi-slice computed tomography. It is considered to be an excellent imaging modality for radiological exploration of the ear.

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