Optimization of cone beam CT exposure for pre-surgical evaluation of the implant site

The aim of this study was to investigate the possibility of reducing patient X-ray dose in the course of implant site evaluation. Retrospective practice-based study using a Morita F170 Accuitomo cone beam CT (CBCT) scanner with variable exposure parameters and operating a small cylindrical field of...

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Bibliographic Details
Published in:Dento-maxillo-facial radiology 2012-01, Vol.41 (1), p.70-74
Main Authors: Dawood, A, Brown, J, Sauret-Jackson, V, Purkayastha, S
Format: Article
Language:English
Subjects:
Adult
Alveolar Process - diagnostic imaging
Cephalometry - methods
Cone-Beam Computed Tomography - methods
Cone-Beam Computed Tomography - standards
Dental Implantation, Endosseous
Dental Implants
Dentistry
Female
Humans
Image Processing, Computer-Assisted - methods
Imaging, Three-Dimensional - methods
Male
Mandible - diagnostic imaging
Maxilla - diagnostic imaging
Maxillary Sinus - diagnostic imaging
Nasal Cavity - diagnostic imaging
Patient Care Planning
Preoperative Care
Radiation Dosage
Radiographic Image Enhancement - methods
Retrospective Studies
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Summary:The aim of this study was to investigate the possibility of reducing patient X-ray dose in the course of implant site evaluation. Retrospective practice-based study using a Morita F170 Accuitomo cone beam CT (CBCT) scanner with variable exposure parameters and operating a small cylindrical field of view of 4 cm diameter and 4 cm height. 6 experienced dental surgeons scored the image quality of dental scans on a 5-point scale for adequacy in providing the required information in 2 categories: bone height from alveolar crest to the relevant anatomical structure and bone width. Lower-dose protocols only marginally affected the preference of the reviewers of the resulting images. There is potential to reduce patient dose very significantly in CBCT examinations for implant site evaluation.
ISSN:0250-832X
1476-542X
DOI:10.1259/dmfr/16421849