scholarly journals Diagnostic performance of mobile cone beam computed tomography versus conventional multi-detector computed tomography in orbital floor fractures: a study on human specimens

2020 ◽  
Author(s):  
A.S. Lacagne ◽  
E. Brumpt ◽  
A. Barrabé ◽  
E. Pomero ◽  
B. Chatelain ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Diagnostic Performance ◽  
Cone Beam ◽  
Orbital Floor ◽  
Orbital Floor Fractures ◽  
Multi Detector Computed Tomography

Ionizing radiation and its considerations in imaging diagnosis: comparison of absorbed dose between cone beam computed tomography and multi-detector computed tomography in the head and neck

2021 ◽  
Author(s):  
P.L.E. Oliveira ◽  
C.R. Starling ◽  
C.L.P. Maurício ◽  
F.R. Guedes ◽  
M.A. Visconti ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Head And Neck ◽  
Cone Beam Computed Tomography ◽  
Absorbed Dose ◽  
Cone Beam ◽  
Thermoluminescent Dosimeters ◽  
Organ Tissue ◽  
The Mean ◽  
Average Adult ◽  
Multi Detector Computed Tomography

Introduction: The objective of this study was to compare the mean absorbed dose in patients undergoing head and neck examinations using two cone beam computed tomography (CBCT, Kodak and i-CAT) and one multi-detector computed tomography (MDCT). Methods: Three thermoluminescent dosimeters (TLDs), calibrated in air kerma, were positioned in 24 regions of the head and neck of a phantom simulating an average adult. The mean absorbed dose (mGy) values in these positions, for different organs and tissues, were obtained using correction factors, considering the ratio between the mass energy absorption coefficients of organ/tissue and air. Comparison between radiation doses in the most radiosensitive regions was done by calculating the ratio of these dose values, with propagated uncertainty. Results: The dose in all regions was significantly higher for MDCT when compared to CBCT. Concerning CBCT equipment, the Kodak device had a higher absorbed dose than the i-CAT for most of the regions tested. The uncertainty of the i-CAT was greater than that of the Kodak. Conclusion: Due to the considerable difference between absorbed doses, emphasizing the higher dose values obtained in MDCT, the dissemination of CBCT application in medicine is recommended, as well as further studies to broaden the criteria for use.

Diagnostic performance of cone beam computed tomography in assessing peri-implant bone loss: A systematic review

2018 ◽  
Vol 29 (5) ◽  
pp. 443-464 ◽  
Author(s):  
Georgios Pelekos ◽  
Aneesha Acharya ◽  
Maurizio S. Tonetti ◽  
Michael M. Bornstein
Keyword(s):  
Computed Tomography ◽  
Systematic Review ◽  
Bone Loss ◽  
Cone Beam Computed Tomography ◽  
Diagnostic Performance ◽  
Cone Beam

scholarly journals Diagnostic performance of cone-beam computed tomography on detection of mechanically-created artificial secondary caries

2011 ◽  
Vol 41 (4) ◽  
pp. 143 ◽  
Author(s):  
Arnon Charuakkra ◽  
Sangsom Prapayasatok ◽  
Apirum Janhom ◽  
Surawut Pongsiriwet ◽  
Karune Verochana ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Diagnostic Performance ◽  
Cone Beam ◽  
Secondary Caries

scholarly journals Overview of Radiological Studies on Visualization of Gubernaculum Tracts of Permanent Teeth

2021 ◽  
Vol 10 (14) ◽  
pp. 3051
Author(s):  
Masafumi Oda ◽  
Ikuko Nishida ◽  
Manabu Habu ◽  
Osamu Takahashi ◽  
Hiroki Tsurushima ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Tooth Eruption ◽  
Present Review ◽  
Cone Beam ◽  
Permanent Teeth ◽  
Dental Follicle ◽  
Imaging Characteristics ◽  
Radiological Studies ◽  
Multi Detector Computed Tomography

The eruption pathway from the dental follicle to the gingiva for permanent teeth is known as the gubernaculum tract (GT), a physiologic structure thought to play a role in tooth eruption. Cone beam computed tomography and multi-detector computed tomography have recently been used to visualize the GT, with the results indicating that this structure might be related to the normal eruption of teeth. By contrast, curved and/or constricted GTs may lead to abnormal tooth eruption. In addition, complex odontomas have been reported from within the GT or dental sac of unerupted permanent teeth. If an odontoma occurs within the GT, the tooth will not erupt normally. Moreover, the imaging characteristics of the GT from the top of the odontogenic mass to the alveolar crest are extremely useful for making a differential pathological diagnosis and for differentiating between odontogenic and non-odontogenic masses. Therefore, radiological studies on the GT have been attracting increasing attention. Given this background, the present review aims to clarify the imaging characteristics and review recent studies on the GT considering the importance of the research.

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