Convolutional neural networks trained algorithm may help diagnose alveolar bone loss in periapical X-rays
A convolutional neural networks trained algorithm on radiographic images showed a diagnostic performance with moderate to good reliability to detect and quantify percentage alveolar bone loss in periapical radiographs according to a recent study published in the International Dental Journal
The objective of this research was to perform a pilot study to develop an automatic analysis of periapical radiographs from patients with and without periodontitis for the percentage of alveolar bone loss (ABL) on the approximal surfaces of teeth using a supervised machine learning model, that is, convolutional neural networks (CNN).
A total of 1546 approximal sites from 54 participants on mandibular periapical radiographs were manually annotated (MA) for a training set (n = 1308 sites), a validation set (n = 98 sites), and a test set (n = 140 sites). The training and validation sets were used for the development of a CNN algorithm. The algorithm recognised the cemento-enamel junction, the most apical extent of the alveolar crest, the apex, and the surrounding alveolar bone.
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