Evaluation of the Accuracy of Linear Measurements on Lateral Cephalograms Obtained From Cone-Beam Computed Tomography Scans With Digital Lateral Cephalometric Radiography

Shokri, Abbas; Khajeh, Samira; Khavid, Atefeh

doi:10.1097/scs.0000000000000908

Cited by 25 publications

(28 citation statements)

References 22 publications

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“…Similar scientific studies were conducted on 6 (Shokri A., Khajeh S., Khavid A. ), 23 (Danielle R. Periago, William C. Scarfe), 10 (Oded Yitschaky, Meir Redlich, Yossi Abed) human turtles, where the authors also confirmed the higher accuracy of the analysis using the 3D method [62,63,65].…”

Section: --supporting

confidence: 68%

Comparison of Accuracy of 2d- And 3d-Diagnostic Methods in Analysis of Maxillofacial Region for Cephalometry in Orthdontic Practice Based on Literature.

Kulikova¹,

Khabadze²,

Abdulkerimova³

et al. 2019

Rejr

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urpose. To determine the orthodontic treatment relevance on the base of metaanalysis of the prevalence of dentoalveolar anomalies, and to compare the accuracy of 2D and 3D cephalometry to detect them. Materials and methods. Comprehensive literature search on the prevalence of dentoalveolar anomalies and comparison of 2D-and 3D-cephalometry results was carried out using two databases. After the selection of the selected criteria, 46 articles on prevalence and 20 articles containing studies on the comparison of teleroentgenogram and CBCT were taken for the analysis. The prevalence was estimated in two groups: analysis of the situation in different regions of the Russian Federation (RF) and prevalence in the world. Results. The analysis of statistical data showed a high prevalence of dentoalveolar anomalies, the highest figures were recorded in Colombia (88%) and Nigeria (88.2%), the lowest figure was recorded in Iran (29%). Among the RF subjects the highest value was found in Tyumen (89%), the lowest-in the Republic of North Ossetia-Alania (42.25%). The analysis of comparison of accuracy of teleroentgenogram and CBCT showed discrepancy in results of the carried-out works at different authors. Conclusion. Need for orthodontic treatment is quite high due to the high prevalence of dentoalveolar anomalies among the population. The advantages and disadvantages of 2D and 3D cephalometry are analyzed. For the final result in comparison to the accuracy requires further clinical and morphological studies..

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Section: --supporting

confidence: 68%

Comparison of Accuracy of 2d- And 3d-Diagnostic Methods in Analysis of Maxillofacial Region for Cephalometry in Orthdontic Practice Based on Literature.

Kulikova¹,

Khabadze²,

Abdulkerimova³

et al. 2019

Rejr

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“…Shokri et al [40] also performed a similar study with 2D and 3D generated cephalograms and concluded that several landmark measurements were different, in particular the Pog-Go.…”

Section: Intra-observer Reproducibilitymentioning

confidence: 94%

Comparison of linear and angular measurements in CBCT scans using 2D and 3D rendering software

Aksoy

Kelahmet

Hınçal³

et al. 2016

Biotechnology & Biotechnological Equipment

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The aim of this study was to compare the reliability of both linear and angular measurements conducted on two-dimensional (2D) lateral cephalometric images and three-dimensional (3D) cone-beam computed tomography-generated cephalograms derived from various rendering software. Pre-treatment cephalometric digital radiographs of 15 patients and their corresponding cone beam computed tomographic images were randomly selected. Vista Dent OC as 2D, In vivo 5.1.2, Maxilim and Romexis software were used to generate cephalograms from the CBCT scans (NewTom 3G, QR Verona, Italy). In total, 19 cephalometric landmarks were identified and 18 widely used (11 linear, 7 angular) measurements were performed by an independent observer. MannÀWhitney and KruskallÀWallis H tests were also used to compare the four methods (p < 0.05). Intra-class correlation coefficients (ICCs) were used to examine the intra-observer reliability. Intra-observer examinations showed various unreliable ICCs, which was an indication of poor reproducibility for condylion-gnathion (Co-Gn), gonion-mentum (Go-Me), anterior nasal spinamentum (ANS-Me), Wits for all 2D and 3D rendering software (p > 0.05). The ICCs for Vista Dent OC (2D) measurements indicated high reproducibility (p < 0.05). The 2D and 3D generated cephalograms from various rendering software were found to be similar; however, measurements on curved surfaces are not easily reproducible for 3D software.

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“…For instance, an objective measure of bone-stress-threshold can help predict animals which are prone to skeletal injuries and may also help the surgeons select the right surgical materials to provide optimal mechanical support in correcting bone defects. 4,[20][21][22] In this study we evaluated two such objective measures of bone-stress-threshold i.e., AMR and HLR values. By normalising the bone density to its area, the AMR provides a measure of bone density that is independent of the age, sex or breed of the animal.…”

Section: Discussionmentioning

confidence: 99%

Lumbosacral Biometrics and its Relevance to Patient-Specific Evaluation of Bone Mechanical Strength in Some Canine Breeds

et al. 2019

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Lumbosacral problems are commonly encountered in canine practice. However, breed specific biometric data of the lumbosacral vertebrae are lacking. Such biometric data may be useful to assess the predisposition of an individual animal or breed to lumbosacral defects, or in the events of such defects may help select an optimal surgical correction strategy. This study used digital radiographs and dissections of cadavers to develop the following biometric parameters of lumbar vertebra 7 and the sacrum: Area-Mean Grey Value Ratio (AMR) and Height-Length Ratio (HLR). The AMR and HLR values were compared between the following four canine breed categories i.e., Working Breeds (WB), Large Breeds (LB), Giant Breeds (GB) and Cross Breeds (CB). Additionally, we compared the AMR and HLR values between 10 different dog breeds. We observed significant differences in the AMR and HLR values between the various dog breeds as well as the HLR values within the canine breed categories. We consider that the differences observed in the AMR and HLR values warrant exploring the feasibility of including these biometric measurements into digital imaging systems to enhance understanding of the mechanical features of bone.

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Evaluation of the Accuracy of Linear Measurements on Lateral Cephalograms Obtained From Cone-Beam Computed Tomography Scans With Digital Lateral Cephalometric Radiography

Cited by 25 publications

References 22 publications

Comparison of Accuracy of 2d- And 3d-Diagnostic Methods in Analysis of Maxillofacial Region for Cephalometry in Orthdontic Practice Based on Literature.

Comparison of Accuracy of 2d- And 3d-Diagnostic Methods in Analysis of Maxillofacial Region for Cephalometry in Orthdontic Practice Based on Literature.

Comparison of linear and angular measurements in CBCT scans using 2D and 3D rendering software

Lumbosacral Biometrics and its Relevance to Patient-Specific Evaluation of Bone Mechanical Strength in Some Canine Breeds

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