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Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images
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Effective dose from cone beam CT examinations in dentistry
J A Roberts1, N A Drage, J Davies
1Department of Medical Physics, Velindre Cancer Centre, Velindre NHS Trust, Cardiff, UK. James.Roberts@velindre-tr.wales.nhs.uk
The British Journal of Radiology
|October 15, 2008
Summary
This study calculated patient effective doses for various dental cone beam CT (CBCT) imaging protocols. Results show CBCT doses are lower than conventional CT but higher than standard dental X-rays.
Area of Science:
- Radiological Sciences
- Medical Imaging
- Dental Diagnostics
Background:
- Cone beam CT (CBCT) is a growing dental imaging technique in the UK.
- Limited data exists on patient effective dose for diverse CBCT fields of view (FOVs).
Purpose of the Study:
- To calculate effective patient doses for common dental CBCT examinations.
- To assess dose variations across different i-CAT CBCT scanner protocols and FOVs.
Main Methods:
- Utilized a Rando phantom with thermoluminescent dosemeters for dose measurement.
- Calculated effective doses using 1990 and 2007 International Commission on Radiological Protection (ICRP) tissue weighting factors.
Main Results:
- Effective doses varied significantly by FOV and protocol, ranging from 9.7 microSv to 206.2 microSv.
- Doses for full FOV head scans were highest (92.8 microSv (1990), 206.2 microSv (2007)).
- CBCT doses are considerably lower than conventional CT but substantially higher than conventional dental radiography.
Conclusions:
- Effective dose estimation is crucial for optimizing CBCT protocols in dentistry.
- Understanding dose ranges aids in informed clinical decision-making and patient safety.
- Further research into dose reduction strategies for CBCT is warranted.
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