CONE BEAM CT IN DENTAL IMPLANT PLANNING: HOW CLOSE ARE PATIENT DOSIMETRY RESULTS WITH DATA FROM PHANTOM STUDIES FOUND IN LITERATURE?
| Autor: | A Zapros, Sofia Kottou, Tsapaki, N Stefanopoulou, N Krompas |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Cone beam computed tomography
Materials science medicine.medical_treatment computer.software_genre Radiation Dosage Patient Care Planning 030218 nuclear medicine & medical imaging 03 medical and health sciences Kerma 0302 clinical medicine Voxel Image Interpretation Computer-Assisted medicine Humans Radiology Nuclear Medicine and imaging Dental implant Cone beam ct Dental Implants Radiation Radiological and Ultrasound Technology business.industry Phantoms Imaging Public Health Environmental and Occupational Health 030206 dentistry General Medicine Cone-Beam Computed Tomography Fixed field Dental Implantation Patient dosimetry Thermoluminescent Dosimetry Nuclear medicine business Phantom studies computer |
| Zdroj: | Radiation protection dosimetry. 187(3) |
| ISSN: | 1742-3406 |
| Popis: | Advantages of Cone Beam Computed Tomography (CBCT) include high-quality 3D imaging and reduced radiation exposure with relatively low cost. In this study, patient radiation exposure in CBCT implant planning dentistry was measured in terms of Kerma Area Product (KAP). Data were obtained from 217 CBCT scans on 168 individuals using a CS9300 Carestream system. Scans were made using 80–90 kVp, 4–5 mA, 8 and 13.3 s exposure time (depending on voxel size) and a fixed field of view (FOV) of 10 × 10 cm2 (medium). Mean KAP was estimated using two voxel sizes 180 × 180 × 180 μm3 and 200 × 200 × 200 μm3 and found to be 399 and 314 mGycm2, respectively. Corresponding KAP values found in literature ranged between 210 and 2140 mGycm2. Mean E was estimated using conversion coefficient factors found in literature, according to FOV size and tube voltage value and found to range between 24 and 161 μSv. |
| Databáze: | OpenAIRE |
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