The effect of computed tomographic scanner parameters and 3-dimensional volume rendering techniques on the accuracy of linear, angular, and volumetric measurements of the mandible
| Autor: | Eugene M. Schimek, Houri K. Vorperian, Lindell R. Gentry, Edward T. Bersu, Brian J. Whyms, Moo K. Chung |
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| Rok vydání: | 2013 |
| Předmět: |
Adult
Chin Scanner Tomography Scanners X-Ray Computed Cephalometry Polymers Field of view Mandible Article Imaging phantom Pathology and Forensic Medicine Rendering (computer graphics) Computed tomographic Imaging Three-Dimensional Multidetector Computed Tomography Alveolar Process Image Processing Computer-Assisted Humans Medicine Radiology Nuclear Medicine and imaging Dentistry (miscellaneous) Child Retrospective Studies Phantoms Imaging business.industry Mandibular Condyle Reconstruction algorithm Volume rendering Reference Standards Volume measurements Surgery Anatomic Landmarks Oral Surgery business Nuclear medicine Algorithms Biomedical engineering |
| Zdroj: | Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology. 115:682-691 |
| ISSN: | 2212-4403 |
| Popis: | This study investigates the effect of scanning parameters on the accuracy of measurements from three-dimensional (3D), multi-detector computed tomography (MDCT) mandible renderings. A broader range of acceptable parameters can increase the availability of computed tomographic (CT) studies for retrospective analysis.Three human mandibles and a phantom object were scanned using 18 combinations of slice thickness, field of view (FOV), and reconstruction algorithm and 3 different threshold-based segmentations. Measurements of 3D computed tomography (3DCT) models and specimens were compared.Linear and angular measurements were accurate, irrespective of scanner parameters or rendering technique. Volume measurements were accurate with a slice thickness of 1.25 mm, but not 2.5 mm. Surface area measurements were consistently inflated.Linear, angular, and volumetric measurements of mandible 3D MDCT models can be confidently obtained from a range of parameters and rendering techniques. Slice thickness is the primary factor affecting volume measurements. These findings should also apply to 3D rendering using cone-beam CT (CBCT). |
| Databáze: | OpenAIRE |
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