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Recursive hierarchic segmentation analysis of bone mineral density changes on digital panoramic images
  • Univ Connecticut
  • Universidade Estadual Paulista (UNESP)
  • National Institutes of Health/National Institute of Dental and Craniofacial Research
  • National Aeronautics and Space Administration (NASA)
  • University of Connecticut General Clinical Research Center
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
  • University of Connecticut General Clinical Research Center General Clinical Research Center
  • Bartron Medical Imaging
  • Ministry of Education of Brazil
Sponsorship Process Number: 
  • DHHS/NIH/NIDCR: T32 DE07302
  • University of Connecticut General Clinical Research Center General Clinical Research Center: M01RR06192
  • Ministry of Education of Brazil: BEX0875/02-3
Objective. The aim of this study was to demonstrate that histogram analysis and mathematical modeling of digital panoramic images (DPIs) processed using recursive hierarchic segmentation (RHSEG) discriminates normal, osteopenic, and osteoporotic cancellous bone.Study Design. Forty-seven DPIs of postmenopausal women were grouped into normal, osteopenic, and osteoporotic; dual-energy x-ray absorptiometry was the reference standard. RHSEG of the mandibular angle and canine/premolar trabecular regions of interest was performed. After histogram and histogram bin analysis and generation of relative intensity functions, generalized linear mixed model analysis was used to model the data and likelihood ratio testing used to assess group differences.Results. Histogram analyses discriminated among the groups. Receiver operating characteristic analysis of the canine/premolar data yielded area-under-the-curve accuracies of 0.78 for osteoporosis and 0.74 for osteopenia. Discrimination of osteoporosis required cubic analysis, discrimination of osteopenia required quartic analysis, and neither model alone discriminated among all groups.Conclusions. Analyses and mathematical modeling of mandibular trabecular bone on RHSEG-processed DPIs discriminated normal, osteoporotic, and osteopenic patients. (Oral Surg Oral Med Oral Pathol Oral Radiol 2012;113:549-558)
Issue Date: 
Oral Surgery Oral Medicine Oral Pathology Oral Radiology. New York: Elsevier B.V., v. 113, n. 4, p. 549-U1, 2012.
Time Duration: 
Elsevier B.V.
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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