ArticleDento maxillo facial radiology2022
Influence of head positioning during cone-beam CT imaging on the accuracy of virtual 3D models.
Article in Dento maxillo facial radiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Spatial Discrepancies in CBCT-Based Localization of Impacted Mandibular Third Molars.International dental journal · 2026Article
- Accuracy of facial scan registration: A comparison between full-cranium and reduced field-of-view cone-beam computed tomography.Imaging science in dentistry · 2025Article
- Effect of head orientation on mandibular bone linear measurements in CBCT imaging.BMC oral health · 2025Article
- Successive measurement errors of consecutive computed tomography for airway-related craniofacial dimensional measurements.Journal of dental sciences · 2024Article
- Assessment of cone-beam CT technical image quality indicators and radiation dose for optimal STL model used in visual surgical planning.Dento maxillo facial radiology · 2024Article
- Application of Artificial Intelligence in Cone-Beam Computed Tomography for Airway Analysis: A Narrative Review.Diagnostics (Basel, Switzerland) · 2024Review
- Quality assurance of 3D-printed patient specific anatomical models: a systematic review.3D printing in medicine · 2024Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveCone beam computed tomography (CBCT) images are being increasingly used to acquire three-dimensional (3D) models of the skull for additive manufacturing purposes. However, the accuracy of such models remains a challenge, especially in the orbital area. The aim of this study is to assess the impact of four different CBCT imaging positions on the accuracy of the resulting 3D models in the orbital area.
methodsAn anthropomorphic head phantom was manufactured by submerging a dry human skull in silicon to mimic the soft tissue attenuation and scattering properties of the human head. The phantom was scanned on a ProMax 3D MAX CBCT scanner using 90 and 120 kV for four different field of view positions: standard; elevated; backwards tilted; and forward tilted. All CBCT images were subsequently converted into 3D models and geometrically compared with a "gold-standard" optical scan of the dry skull.
resultsMean absolute deviations of the 3D models ranged between 0.15 ± 0.11 mm and 0.56 ± 0.28 mm. The elevated imaging position in combination with 120 kV tube voltage resulted in an improved representation of the orbital walls in the resulting 3D model without compromising the accuracy.
conclusionsHead positioning during CBCT imaging can influence the accuracy of the resulting 3D model. The accuracy of such models may be improved by positioning the region of interest (
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