Strut analysis for osteoporosis detection model using dental panoramic radiography

Hwang, Jae Joon; Lee, Jeong-Hee; Han, Sang-Sun; Kim, Young Hyun; Jeong, Ho Gul; Choi, Yoon Jeong; Park, Wonse

doi:10.1259/dmfr.20170006

Cited by 78 publications

(80 citation statements)

References 30 publications

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“…The anterior region of the mandible seems to produce relatively inaccurate images due to the overlap of the cervical spine and relatively high likelihood of blurring. 16 In our study, we used the angle of the mandible below the mandibular canal and posterior to the molar region to avoid interference caused by masticatory stress, as proposed by Oliveira et al, 15 and to provide bone structure even in fully edentulous aged individuals with extremely atrophic mandibles. However, this area is subject to the overlapping of other an-atomical structures, such as the airways, tonsils, soft palate, tongue, and hyoid bone.…”

Section: Discussionmentioning

confidence: 99%

Impact of radiotherapy on mandibular bone: A retrospective study of digital panoramic radiographs

et al. 2020

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Purpose: The purpose of this study was to investigate the impact of radiotherapy on mandibular bone tissue in head and neck cancer patients through an analysis of pixel intensity and fractal dimension values on digital panoramic radiographs. Materials and Methods: Thirty patients with radiographic records from before and after 3-dimensional (3D) conformational radiotherapy were selected. A single examiner carried out digital analyses of pixel intensity values and fractal dimensions, with the areas of interest unilaterally located in the right angle medullary region of the mandible below the mandibular canal and posterior to the molar region. Results: Statistically significant decreases were observed in the mean pixel intensity (P = 0.0368) and fractal dimension (P = 0.0495) values after radiotherapy. Conclusion: The results suggest that 3D conformational radiotherapy for head and neck cancer negatively affected the trabecular microarchitecture and mandibular bone mass.

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Section: Discussionmentioning

confidence: 99%

Impact of radiotherapy on mandibular bone: A retrospective study of digital panoramic radiographs

et al. 2020

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“…A identificação precoce de indivíduos com baixa densidade e qualidade óssea associado ao distúrbio osteometabólico é importante para estabelecer estratégias na prevenção de fraturas. Dessa forma, vários estudos (CALCIOLARI et al, 2015;GEARY et al, 2015;KAVITHA et al, 2015;KIM et al, 2016;YAMADA et al, 2015;MILIUNIENE et al, 2016;MURAMATSU et al, 2016;CARMO, MEDEIROS, 2017;HWANG et al, 2017;OHTSUKI et al, 2017;SPEZZIA et al, 2017;KINALSKI et al, 2020)…”

Section: Metodologiaunclassified

Lesão Enegrecida-Azulada Em Mucosa Bucal: Possíveis Diagnósticos Diferenciais E Como Proceder

Soares¹,

Silva²,

Silva³

et al. 2020

Prática Problematizadora E Ensino Participativo Na Odontologia

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Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição 4.0 Internacional (CC BY 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Direitos para esta edição cedidos à Atena Editora pelos autores.

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“…Each image was segmented by using the MATLAB Release 2016a program to obtain the following standardized size regions of interest (ROIs) on the mandibular right side, 50X50 pixels ( Figure 1): F1 -area delimited in the region of alveolar bone, located between the mental foramen and mandibular cortical bone; M1 -region below and between first and second molars (the center area horizontally 2 cm from the intersection point of the oblique line and ramus in cases with missing right mandibular molars); and R1 -geometric center of mandibular ramus. 32 These ROIs were analyzed using an algorithm based on White and Rudolph 39 study.…”

Section: Evaluation Of Image Texture Parametersmentioning

confidence: 99%

“…20,21 Fractal analysis is a non-invasive imaging tool to obtain data regarding bone microarchitecture, and it has been used in several studies in the field of dentomaxillofacial radiology. [22][23][24][25][26][27][28][29] In endocrine pathologies, fractal analysis and other textural imaging tools (e.g., lacunarity and morphologic aspects) have been proposed to evaluate osteoporosis, 19,[30][31][32] osteogenesis imperfecta, 33 hyperparathyroidism, 34 chronic renal failure, 35 sickle cell anemia, 36 and diabetes mellitus. 37 To date, there are no published reports evaluating these parameters in panoramic radiographs of SSH individuals.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of bone texture imaging parameters on panoramic radiographs of patients with Sheehan’s syndrome: a STROBE-compliant case-control study

Cavalcante

Castro²,

Quidute

et al. 2019

Osteoporos Int

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Objectives: Sheehan's syndrome (SSH) is an important public health problem characterized as postpartum hypopituitarism secondary to obstetric complications-related ischemic pituitary necrosis that shows significant systemic metabolic repercussion. Thus, this study aimed to evaluate texture parameters in digital panoramic radiographs of patients with SSH. Methods: A case-control study was conducted with 30 SSH patients from an Endocrinology and Diabetology Service of reference in Brazil, and 30 age-and sexmatched healthy controls. A custom computer program measured fractal dimension, lacunarity and some morphologic features in the following mandibular regions of interest (50x50 pixels): below the mental foramen (F1), between the first and second molars (M1), and center of the mandibular ramus (R1). Results: The fractal analysis showed a statistically significant difference between the studied groups in all regions of interest. The fractal dimension in F1 (p = 0.016), M1 (p = 0.043), and R1 (p = 0.028) was significantly lower in SSH group, as well as lacunarity in R1 (p = 0.008). Additionally, several morphologic features were statistically significant in the SSH group (p < 0.05). Conclusion: Therefore, individuals with SSH showed altered imaging texture parameters on panoramic radiographs, which reflect a smaller spatial organization of the bone trabeculae and, possibly, a state of reduced mineral bone density.

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Strut analysis for osteoporosis detection model using dental panoramic radiography

Abstract: The analysis of strut features in the endosteal margin area showed potential for the development of an osteoporosis detection model based on panoramic radiography.

Cited by 78 publications

References 30 publications

Impact of radiotherapy on mandibular bone: A retrospective study of digital panoramic radiographs

Impact of radiotherapy on mandibular bone: A retrospective study of digital panoramic radiographs

Lesão Enegrecida-Azulada Em Mucosa Bucal: Possíveis Diagnósticos Diferenciais E Como Proceder

Evaluation of bone texture imaging parameters on panoramic radiographs of patients with Sheehan’s syndrome: a STROBE-compliant case-control study

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