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Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images
Published on: February 23, 2024
Cone beam computed tomography radiation dose and image quality assessments
1Department of Oral and Maxillofacial Radiology, Institute of Odontology at Sahlgrenska Academy, University of Gothenburg, PO Box 450, SE-405 30 Göteborg, Sweden. sara.lofthag-hansen@vgregion.se
Swedish Dental Journal. Supplement
|January 15, 2011
Summary
Cone beam computed tomography (CBCT) offers superior diagnostic accuracy for periapical lesions compared to traditional radiography. Radiation dose estimation requires dose-area product (DAP) for small field-of-view CBCT units.
Area of Science:
- Dental Radiology
- Medical Imaging Technology
- Cone Beam Computed Tomography
Background:
- Diagnostic radiology has evolved significantly, with cone beam computed tomography (CBCT) emerging as a key technology in dentistry.
- CBCT encompasses various systems with differing parameters like field of view (FOV), radiation quality, and dose.
- Evaluating new technologies for diagnostic accuracy and radiation safety is crucial.
Purpose of the Study:
- To assess the diagnostic accuracy of CBCT compared to intra-oral radiography for endodontic diagnosis.
- To evaluate the visibility of anatomical structures for implant planning using CBCT.
- To determine appropriate methods for radiation dose assessment and optimize exposure parameters for CBCT units.
Main Methods:
- Comparison of 3D Accuitomo CBCT (with image intensifier and flat panel detector) against intra-oral radiography for endodontic diagnosis in 35 patients.
- Assessment of marginal bone crest and mandibular canal visibility in 30 patients undergoing CBCT for implant planning.
- Evaluation of CT dose index (CTDI) and dose-area product (DAP) for radiation dose calculation.
- Subjective image quality assessment of CBCT scans using a six-point rating scale by seven observers.
Main Results:
- CBCT imaging demonstrated superior diagnostic accuracy for periapical lesions (42 vs 32 teeth).
- High visibility of critical anatomical structures for implant planning was observed with good inter-observer agreement.
- The CTDI method was found inapplicable for small FOV CBCT units; DAP was used for dose estimation.
- Effective dose varied between 11-77 microSv, with potential for substantial dose reduction by optimizing exposure parameters and rotation.
Conclusions:
- CBCT with small FOVs is well-suited for periapical diagnosis and dental implant planning.
- Dose-area product (DAP) is the appropriate method for estimating effective dose from small FOV CBCT units.
- Optimizing exposure parameters and rotation angles can significantly reduce radiation dose without compromising diagnostic information.
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