Automatic computation of mandibular indices in dental panoramic radiographs for early osteoporosis detection.

Artificial Intelligence in Medicine
Ignacio AliagaGonzalo Pajares

Abstract

A new automatic method for detecting specific points and lines (straight and curves) in dental panoramic radiographies (orthopantomographies) is proposed, where the human knowledge is mapped to the automatic system. The goal is to compute relevant mandibular indices (Mandibular Cortical Width, Panoramic Mandibular Index, Mandibular Ratio, Mandibular Cortical Index) in order to detect the thinning and deterioration of the mandibular bone. Data can be stored for posterior massive analysis. Panoramic radiographies are intrinsically complex, including: artificial structures, unclear limits in bony structures, jawbones with irregular curvatures and intensity levels, irregular shapes and borders of the mental foramen, irregular teeth alignments or missing dental pieces. An intelligent sequence of linked imaging segmentation processes is proposed to cope with the above situations towards the design of the automatic segmentation, making the following contributions: (i) Fuzzy K-means classification for identifying artificial structures; (ii) adjust a tangent line to the lower border of the lower jawbone (lower cortex), based on texture analysis, grey scale dilation, binarization and labelling; (iii) identification of the mental foramen ...Continue Reading

Citations

Feb 24, 2021·Oral Radiology·Akira TaguchiUNKNOWN Japanese Society for Oral and Maxillofacial Radiology
Jul 15, 2021·BioMed Research International·Naseer AhmedMohammad Khursheed Alam
Aug 11, 2021·Advances in Rheumatology·Renato Vicente FerreiraVera Lucia Szejnfeld
Oct 8, 2021·PeerJ. Computer Science·Anuj KumarAnnapurna Singh

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