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Skip to Search Results- 6Lagravère, Manuel O.
- 4Carey, Jason P.
- 4Major, Paul W.
- 2Carey, Jason
- 2Packota, Garnet V.
- 2Secanell, Marc
- 2Bone Density
- 2Cone Beam Computed Tomography
- 2Hounsfield Value
- 1Activation methods
- 1Cephalometry
- 1Computed Tomography
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Sensitivity Analysis for Plane Orientation in Three-Dimensional Cephalometric Analysis based on Superimposition of Serial CBCT Images
Download2010
Major, Paul W., Lagravère, Manuel O., Carey, Jason P.
Objectives: The purpose of this study was to evaluate the potential errors associated with superimposition of serial cone beam CT (CBCT) images utilizing reference planes based on cranial base landmarks using a sensitivity analysis. Methods: CBCT images from 62 patients participating in a...
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Multi-Objective Optimization Framework for Landmark Measurement Error Correction in Three Dimensional Cephalometric Tomography
Download2013
Lagravère, Manuel O., Carey, Jason P., DeCesare, Alessandro, Secanell, Marc
The purpose of this study is to minimize errors that occur when using a four vs six landmark superimpositioning method in the cranial base to define the co-ordinate system. Cone beam CT volumetric data from ten patients were used for this study. Co-ordinate system transformations were performed....
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Review of Maxillary expansion appliance activation methods: engineering and clinical perspectives
Download2010
Lagravère, Manuel O., Carey, Jason P., Romanyk, Dan L., Major, Paul W., Toogood, Roger W.
Objective. Review the reported activation methods of maxillary expansion devices for midpalatal suture separation from an engineering perspective and suggest areas of improvement. Materials and Methods. A literature search of Scopus and PubMed was used to determine current expansion methods. A...
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Effect of object location on the density measurement and hounsfield conversion in a NewTom 3G cone-beam computed tomography unit
Download2008
Ben-Zvi, Micha, Packota, Garnet V., Major, Paul W., Lagravère, Manuel O., Carey, Jason
Objectives: The purpose of this study was to determine the effect of an object's location in a cone beam CT imaging chamber (CBCT-NewTom 3G) on its apparent density and to develop a linear conversion coefficient for Hounsfield units (HU) to material density (g cm−3) for the NewTom 3G Scanner....
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Investigation of in vivo 3D Cone-Beam Computed Tomography Tooth Volume Measurement Protocols
Download2014
Secanell, Marc, Lagravère, Manuel O., Nijjar, Simrit, Carey, Jason P., Forst, Darren, Flores-Mir, Carlos
Background The objective of this study is to analyze a set of previously developed and proposed image segmentation protocols for precision in both intra- and inter-rater reliability for in vivo tooth volume measurements using cone-beam computed tomography (CBCT) images. Methods Six 3D volume...
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Density Conversion Factor Determined using a Cone-Beam Computed Tomography Unit NewTom QR-DVT 9000
Download2006
Carey, Jason, Lagravère, Manuel O., Major, Paul W., Fang, Y., Packota, Garnet V., Toogood, Roger W.
Objective: The purpose of this study was to determine a conversion coefficient for Hounsfield Units (HU) to material density (g cm−3) obtained from cone-beam computed tomography (CBCT-NewTom QR-DVT 9000) data. Methods: Six cylindrical models of materials with different densities were made and...