Theodoridis Charis, Damaskos Spyros, Angelopoulos Christos
Department of Preventive Dentistry - Periodontology and Implant Biology, Aristotle University of Thessaloniki, 3 Kavalas Str., 565625, Sykies, ThessalonikiGreece.
Department of Oral Diagnosis and Radiology, Dental School of Athens, National and Kapodistrian University of Athens, 2 Thivon Str, 11527, Goudi, AthensGreece.
J Oral Maxillofac Res. 2024 Mar 31;15(1):e5. doi: 10.5037/jomr.2024.15105. eCollection 2024 Jan-Mar.
This retrospective study aims to identify incidental findings in cone-beam computed tomography scans of patients irradiated for preoperative evaluation for implant placement and obtained using the same imaging unit as well as the same field of view. The incidence of each incidental finding, as well as the overall incidence, were calculated and the findings were ranked according to their clinical significance.
A total of 741 cone-beam computed tomography (CBCT) examinations with extended field of view (15 x 15 cm) were retrospectively evaluated for incidental findings (IFs). These were identified, recorded, classified as to their location, and ranked according to their clinical significance.
The vast majority of CBCT examinations presented at least one IF, resulting in a surprisingly high prevalence in total. If extreme anatomical variants are considered (nasal septum deviation, sinus septations etc.), the cumulative prevalence exceeds 99%. IFs of major significance, that may require immediate attention, are beyond 10% in frequency.
We found high prevalence of incidental findings on cone-beam computed tomography examinations performed for preoperative evaluation for implant placement (99.5% if anatomical variants included). Most incidental findings were of minor significance. Although the number of incidental findings that require immediate attention is relatively low, there is a considerable number of cases that need periodic evaluation and/or referral.
本回顾性研究旨在识别在使用相同成像设备及相同视野进行术前评估以确定种植体植入位置的患者锥形束计算机断层扫描（CBCT）图像中的偶然发现。计算每个偶然发现的发生率以及总体发生率，并根据其临床意义对这些发现进行排序。
对总共741例采用扩展视野（15×15 cm）的锥形束计算机断层扫描（CBCT）检查进行回顾性评估，以寻找偶然发现（IFs）。识别并记录这些发现，按其位置进行分类，并根据临床意义进行排序。
绝大多数CBCT检查至少呈现一个偶然发现，总体发生率惊人地高。如果考虑极端解剖变异（鼻中隔偏曲、鼻窦分隔等），累积发生率超过99%。具有重大意义、可能需要立即关注的偶然发现在频率上超过10%。
我们发现在用于种植体植入术前评估的锥形束计算机断层扫描检查中偶然发现的发生率很高（如果包括解剖变异则为99.5%）。大多数偶然发现意义不大。虽然需要立即关注的偶然发现数量相对较少，但仍有相当数量的病例需要定期评估和/或转诊。
