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Effective dose from cone beam CT examinations in dentistry

¹ Department of Medical Physics, Velindre Cancer Centre, Velindre NHS Trust, ² Department of Dental Radiology, University Dental Hospital, Cardiff and Vale NHS Trust, Cardiff, ³ Department of Dental Radiological Imaging, Guy's Hospital, Guy's Tower, London, UK

View larger version (59K): [in this window] [in a new window]   Figure 1. Head/neck region of an adult Rando phantom. Numbered slices indicate the levels containing thermoluminescent dosemeters.

View larger version (112K): [in this window] [in a new window]   Figure 2. Three-dimensional reconstructions of the irradiated regions: (a) full field of view head; (b) 13 cm scan of the jaws; (c) 6 cm mandible; and (d) 6 cm maxilla.

View larger version (14K): [in this window] [in a new window]   Figure 3. Effective dose(µSv) for all scan protocols. Results obtained by Ludlow et al [13] are also displayed for comparison (full field of view (FOV)). HR, high resolution.