Academic literature on the topic 'Radiographic densitometry'
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Journal articles on the topic "Radiographic densitometry"
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Dias, Bianca Marfil, Anderson F. de Souza, and André Luis do V. De Zoppa. "Evaluation of bone mineral density through radiographic optical densitometry in 42 canine femures." Clínica Veterinária XXVI, no. 150 (2021): 64–69. http://dx.doi.org/10.46958/rcv.2021.xxvi.n.150.p.64-69.
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This study evaluates the bone mineral density of 42 canine femurs using radiographic optical densitometry and validates radiographic optical densitometry as a parameter to standardize bone tissue samples used in biomechanical tests, contributing to the diagnosis of osteoporosis in dogs. The ImageJ 1.46r® program was used for the radiographic optical densitometry. After selecting the aluminum steps and the area of interest in the femur, the data obtained were stored in a table and converted into mm/Al using the MS Excel® trend function. Statistical analysis demonstrated the absence of atypical values (outiliers) in the samples analyzed. The samples evaluated were homogeneous and the densitometric data obtained may contribute to reducing the scarcity of densitometric references in the veterinary literature. Ex vivo biomechanical studies may benefit from the method used in this study to standardize their sample when evaluating bone mineral density, validating their respective projects
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Miranda, Lituânia Fialho de, Denise Sabbagh Haddad, Emiko Saito Arita, and Plauto Christopher Aranha Watanabe. "Quantitative and qualitative index for diagnosing osteopenia and osteoporosis in post-menopausal women." Clinical and Laboratorial Research in Dentistry 21, no. 1 (2015): 1. http://dx.doi.org/10.11606/issn.2357-8041.clrd.2015.90130.
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<p><strong>Objective:</strong> The objective of this study was to devise a qualitatively and quantitatively reliable index for screening changes in mandibular bone density based on digital panoramic radiographs.</p><p><strong>Methods:</strong> A total of 252 panoramic radiographs and forearm bone densitometry scans of menopausal and post-menopausal women were examined. Diagnosis of osteopenia or osteoporosis was confirmed by comparing forearm densitometry diagnostic reports against diagnoses from radiographs.</p><p><strong>Results:</strong> Pearson’s tests showed a significant association between assessments by the Quantitative and Qualitative Panoramic Index (QQPI) based on panoramic radiography of the mandible and by densitometry (p &lt; 0.001). The Kappa statistic also revealed significant agreement between the two methods of assessment (p &lt; 0.001). A significant association was also found between results of panoramic radiographic assessments of left and right mandible sides (Kappa = 0.676; p &lt; 0.001).</p><p><strong>Conclusion:</strong> These results allowed confirmation of panoramic radiography as a useful method for detecting morphologic age-related changes in the mandible and creation of a single Quantitative and Qualitative Panoramic Index (QQPI) to aid the diagnosis of mandibular osteopenia/osteoporosis.</p>
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Wilkie, Joel R., Maryellen L. Giger, Michael R. Chinander, et al. "Comparison of radiographic texture analysis from computed radiography and bone densitometry systems." Medical Physics 31, no. 4 (2004): 882–91. http://dx.doi.org/10.1118/1.1650529.
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De Faria, Paula Cristina, Maria Fernanda Lima Villaça-Carvalho, Sérgio Lúcio Pereira de Castro Lopes, Mari Eli Leonelli De Moraes, and Luiz Roberto Coutinho Manhães Júnior. "Radiographic signs of bone mineral density in panoramic radiographs from pre and postmenopausal patients." Brazilian Dental Science 20, no. 1 (2017): 56. http://dx.doi.org/10.14295/bds.2017.v20i1.1276.
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<p><strong>Objective:</strong> The aim of this study was to evaluate the potential of panoramic radiographs (PR) and their radiomorphometric indices as an auxiliary method for the diagnosis of osteoporosis. <strong>Material and</strong> <strong>Methods:</strong> Twenty five women were selected, who had been prescribed PR for different purposes. The PR were analysed according to the MCI, which evaluates the mandibular cortex below the mental foramen, and then divided into two groups: normal and bone mineral loss. Bone densitometry scans were obtained (DXA) from the lumbar spine and neck of the femur/whole femur, which were used as the gold standard for comparison against the MCI. Kappa test (p&lt;0.05) was used to determine the association between the MCI and bone densitometry readings. <strong>Results:</strong> Regarding the DXA, 7 patients were normal at the lumbar spine or femur, 24 subjects showed osteopenia at the lumbar spine or femur and 9 subjects had osteoporosis at the lumbar spine or femur. Regarding the association between DXA and MCI, 18 subjects showed some degree of bone loss at the spine detected by both DXA and the Klemetti index. <strong>Conclusions:</strong> PR may be useful to assess the risk of such diseases being present.</p>
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Paiva, Lúcia Costa, Silvana Filardi, Aarão Mendes Pinto-Neto, Adil Samara, and João Francisco Marques Neto. "Impact of degenerative radiographic abnormalities and vertebral fractures on spinal bone density of women with osteoporosis." Sao Paulo Medical Journal 120, no. 1 (2002): 09–12. http://dx.doi.org/10.1590/s1516-31802002000100003.
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CONTEXT: Measurements of bone density taken by dual-energy x-ray absorptiometry are the most accurate procedure for the diagnosis of osteoporosis. This procedure has the disadvantage of measuring the density of all mineral components, including osteophytes, vascular and extra vertebral calcifications. These alterations can influence bone density results and densitometry interpretation. OBJECTIVE: To correlate radiography and densitometry findings from women with osteoporosis, analyzing the influence of degenerative processes and vertebral fractures on the evaluation of bone density. DESIGN: Retrospective study. SETTING: Osteoporosis outpatients' clinic at Hospital das Clínicas, Universidade Estadual de Campinas. PARTICIPANTS: Ninety-six postmenopausal women presenting osteoporosis diagnosed by bone density. MAIN MEASUREMENTS: Bone mineral density of the lumbar spine and femoral neck were measured by the technique of dual-energy x-ray absorptiometry, using a LUNAR-DPX densitometer. Fractures, osteophytes and aortic calcifications were evaluated by simple x-rays of the thoracic and lumbar spine. RESULTS: The x-rays confirmed vertebral fractures in 41.6%, osteophytes in 33.3% and calcifications of the aorta in 30.2%. The prevalence of fractures and aortic calcifications increased with age. The mean bone mineral density was 0.783g/cm² and the mean T-score was --3.47 DP. Neither fractures nor aortic calcifications had significant influence on bone mineral density (P = 0.36 and P = 0.09, respectively), despite the fractured vertebrae having greater bone mineral density (P < 0.02). Patients with lumbar spine osteophytes showed greater bone mineral density (P = 0.04). Osteophytosis was associated with lumbar spine bone mineral density after adjustment for fractures and aortic calcifications by multiple regression (P = 0.01). CONCLUSION: Osteophytes and lumbar spine fractures can overestimate bone density interpretation. The interpretation of densitometry results should be carried out together with the interpretation of a simple lumbar spine x-ray in elderly women.
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Sartoris, David J., and Donald Resnick. "New Radiographic Technique May Renew Credibility of Bone Densitometry." Mayo Clinic Proceedings 63, no. 11 (1988): 1147–50. http://dx.doi.org/10.1016/s0025-6196(12)65513-x.
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SARTORIS, DAVID J., AVRAHAM MOSCONA, and DONALD RESNICK. "Progress in Radiology: Dual-Energy Radiographic Absorptiometry for Bone Densitometry." Annals of the New York Academy of Sciences 592, no. 1 (1990): 307–25. http://dx.doi.org/10.1111/j.1749-6632.1990.tb30342.x.
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Eis, Sergio Ragi, and E. Michael Lewiecki. "Peripheral bone densitometry: clinical applications." Arquivos Brasileiros de Endocrinologia & Metabologia 50, no. 4 (2006): 596–602. http://dx.doi.org/10.1590/s0004-27302006000400005.
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Technologies for the measurement of bone mineral density and other parameters of bone strength at peripheral skeletal sites have been studied since the 1960s. Single-energy Photon Absorptiometry (SPA), Radiographic Absorptiometry (RA), Radiogrametry (RG), Single-energy X-ray Absorptiometry (SXA), Peripheral Dual-energy X-ray Absorptiometry (pDXA), and Quantitative Ultrasonometry (QUS) have been successively evaluated. These technologies and their clinical applications are discussed in this article. The available scientific evidence supports the clinical use of these technologies at peripheral skeletal for assessment of fracture risk. Peripheral measurements other than the 33% (one-third) radius by DXA cannot be used to diagnose osteoporosis according to current standards. Peripheral skeletal sites are not clinically useful for monitoring changes in BMD with natural evolution of the disease and its treatment. Peripheral BMD measurement can theoretically be used to screen patients for selection to central DXA testing, although device-specific cut-points should be developed before this is implemented. When central DXA testing is not available, peripheral BMD testing may be considered to identify individuals who might benefit from pharmacological intervention.
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Sartoris, DJ, and D. Resnick. "Dual-energy radiographic absorptiometry for bone densitometry: current status and perspective." American Journal of Roentgenology 152, no. 2 (1989): 241–46. http://dx.doi.org/10.2214/ajr.152.2.241.
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Lyon, A. J., D. J. Hawkes, M. Doran, N. McIntosh, and F. Chan. "Bone mineralisation in preterm infants measured by dual energy radiographic densitometry." Archives of Disease in Childhood 64, no. 7 Spec No (1989): 919–23. http://dx.doi.org/10.1136/adc.64.7_spec_no.919.
Full textDissertations / Theses on the topic "Radiographic densitometry"
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Antonietto, Eduardo [UNESP]. "Densidade mineral óssea de vértebras de ratos wistar suspensos pela cauda por 15 e 36 dias." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/92193.
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antonietto_e_me_araca.pdf: 362598 bytes, checksum: 31bb67971bee7c5aee6467cbcebf7a2a (MD5)<br>A suspensão de ratos pela cauda é modelo utilizado para investigar o comportamento ósseo em animais impossibilitados de se locomoverem. O osso é um tecido adaptativo que se desenvolve em sua estrutura e função, entre outros fatores, em resposta a forças mecânicas aplicadas a ele e demandas metabólicas que o mesmo venha sofrer. A ausência de forças mecânicas e de deformação óssea faz com que ocorra uma diminuição na deposição de cálcio por ausência de estímulos nos osteoblastos e osteócitos, favorecendo a ação dos osteoclastos, tornando o osso enfraquecido e quebradiço. Portanto, a ação mecânica é necessária para estimular a resposta óssea local e, assim, proporcionar seu crescimento e remodelamento. O objetivo deste estudo foi avaliar, através da densitometria radiográfica, se a suspensão pela cauda por 15 e 36 dias altera a densidade mineral óssea das vértebras cervical (C3), torácica (T6) e lombar (L1 e L3) de ratos Wistar. Trinta Rattus norvegicus albinus, adultos, machos, linhagem Wistar, massa corpórea média de ± 350g, foram divididos em 3 grupos: controle (n=10) - não suspenso; S15 (n=10) - suspenso por 15 dias e S36 (n=10) - suspenso por 36 dias. Para análise densitométrica as vértebras foram radiografadas, escaneadas, digitalizadas e analisadas pelo programa computacional ImageJ®. Houve aumento estatisticamente significante da densidade mineral óssea no grupo S15, provavelmente pela inquietação dos animais à suspensão, com diminuição no grupo S36, fato este hipoteticamente ligado à acomodação dos mesmos, concluindo que a suspensão pela cauda alterou a densidade mineral óssea num primeiro momento com diminuição com o passar do tempo<br>The suspension of rats by the tail model is used to investigate the behavior of bone in animals unable to move around. Bone is an adaptative tissue that develops in structure and function, among other factors, in response to mechanical forces applied to it and metabolic demands that it will suffer. The absence of mechanical forces and deformation of bone that occurs causes a decrease in calcium deposition in the absence of stimuli on osteoblasts and osteocytes, favoring the action of osteoclasts, making bones weak and brittle. Therefore, the mechanical action is necessary to stimulate local bone response and thus provide growth and remodeling. The aim of this study was to evaluable by radiographic densitometry, the tail suspension for 15 and 36 days alter the bone mineral density of cervical vertebrae (C3), thoracic (T6) and lumbar (L1 and L3) of Wistar rats. Thirty Rattus norvegicus albinus, adult, male, Wistar strain, average body mass ± 350g, were divided into 3 groups: control (n = 10) - not suspended; S15 (n = 10) - suspended for 15 days and S36 (n = 10) - suspended for 36 days. For densitometric analysis vertebrae were radiographed, scanned, digitized and analyzed by the computer program ImageJ ®. There was a statistically significant increase in bone mineral density in group S15, probably by the restlessness of the animals to the suspension, with a decrease in group S36, and this hypothetically is linked to the accommodation of the rats, concluding that the tail suspension altered bone mineral density in first time with a decrease over time
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Oliveira, Márcio Teixeira. "Programa computacional ODR-ATA para densitometria óssea baseado na densitometria radiografica /." Araçatuba, 2014. http://hdl.handle.net/11449/128101.
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Resumo: A densitometria radiográfica é técnica que permite avaliar a densidade óssea, utilizando referências confeccionadas em material inerte (ex. alumínio), principalmente para investigação de alterações ósseas e doenças como a osteoporose. Para aumentar a precisão de técnica, alguns autores propõe o uso de equações matemáticas, como métodos dos mínimos quadrados, teorema de LaPlace e regra de Sarrus o que permitirá obter melhor ajuste da curva característica de absorção aos raios-X pelo objeto de estudo. O uso de tecnologias como Java, gnuplot, broffice calc, todas elas de código aberto, possibilitou-nos o desenvolvimento do software "ODR-ATA", capaz de analisar e processar imagens radiográficas digitais ou digitalizadas e calcular valores de densidade próximos aos valores do objeto em estudo. Atualmente diversas soluções pagas possuem suporte para realizar a densitometria radiográfica. O objetivo deste estudo foi desenvolver uma solução computacional de código livre, para cálculo da densidade óssea a partir da densitometria radiográfica. Para testar o software, foi realizado um experimento a partir de uma tomada radiográfica de uma escada de alumínio de valores conhecidos. Foram feitas 10 repetições e avaliados os degraus 4, 5, 6, 7 e 8 da escada de alumínio. Os resultados obtidos pelo "ODR-ATA" para os degraus 5, 6, 7 e 8 demonstraram uma precisão e exatidão de ordem de 3,64% e 3,63% respectivamente, atestando a validade e confiabilidadena utilização do software na obtenção da densidade óssea obtida pela densidade radiográfica.<br>Abstract: The radiographic densitometry is the technic that allows the evaluation of bone density, which uses references created in inert material (e.g. aluminium) especially to the investigation of bone modifications and illnesses such as osteoporosis. To increase technical precision some authors suggest the use of mathematical equations, such as the least squares method, Laplace's theorem, and the Rule of Sarrus allowing better results when achieving the adjustment of the curve that is characteristic of X-ray absorption by what is being studied. The usage of technologies such as Java, gnuplot, broffice calc, all of open code, allowed us to develop the software "ODR-ATA", which is capable of analyzing and processing digital radiographic images and of calculating values of density close to the values of the object under study. Recently, various paid solutions have the support to perform radiographic densitometry. The purpose of this study is to develop a computational solution of free code to calculate bone density starting from the radiographic densitometry. In order to test the software I performed an experiment that started with the radiography of an aluminum ladder of unknown values. I performed 10 repetitions and evaluated steps 4,5,6,7, and 8 of the aluminum ladder. The results I achieved with "ODR-ATA" for steps of number 5,6,7, and 8 show a precision of 3,64%% and 3,63% respectively, which attest for the validity and reliability of the software in the discovery of the bone density obtained through the radiographic densitometry<br>Orientador: Mário Jefferson Quirino Louzada<br>Banca: Luciana Del Pinoti Ciarlini<br>Banca: Gilberto Aparecido Coclete<br>Mestre
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Oliveira, Márcio Teixeira [UNESP]. "Programa computacional ODR-ATA para densitometria óssea baseado na densitometria radiografica." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/128101.
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000840954_20190624.pdf: 556647 bytes, checksum: a494457010ba62d84f9bae781c228183 (MD5)<br>A densitometria radiográfica é técnica que permite avaliar a densidade óssea, utilizando referências confeccionadas em material inerte (ex. alumínio), principalmente para investigação de alterações ósseas e doenças como a osteoporose. Para aumentar a precisão de técnica, alguns autores propõe o uso de equações matemáticas, como métodos dos mínimos quadrados, teorema de LaPlace e regra de Sarrus o que permitirá obter melhor ajuste da curva característica de absorção aos raios-X pelo objeto de estudo. O uso de tecnologias como Java, gnuplot, broffice calc, todas elas de código aberto, possibilitou-nos o desenvolvimento do software ODR-ATA, capaz de analisar e processar imagens radiográficas digitais ou digitalizadas e calcular valores de densidade próximos aos valores do objeto em estudo. Atualmente diversas soluções pagas possuem suporte para realizar a densitometria radiográfica. O objetivo deste estudo foi desenvolver uma solução computacional de código livre, para cálculo da densidade óssea a partir da densitometria radiográfica. Para testar o software, foi realizado um experimento a partir de uma tomada radiográfica de uma escada de alumínio de valores conhecidos. Foram feitas 10 repetições e avaliados os degraus 4, 5, 6, 7 e 8 da escada de alumínio. Os resultados obtidos pelo ODR-ATA para os degraus 5, 6, 7 e 8 demonstraram uma precisão e exatidão de ordem de 3,64% e 3,63% respectivamente, atestando a validade e confiabilidadena utilização do software na obtenção da densidade óssea obtida pela densidade radiográfica.<br>The radiographic densitometry is the technic that allows the evaluation of bone density, which uses references created in inert material (e.g. aluminium) especially to the investigation of bone modifications and illnesses such as osteoporosis. To increase technical precision some authors suggest the use of mathematical equations, such as the least squares method, Laplace's theorem, and the Rule of Sarrus allowing better results when achieving the adjustment of the curve that is characteristic of X-ray absorption by what is being studied. The usage of technologies such as Java, gnuplot, broffice calc, all of open code, allowed us to develop the software ODR-ATA, which is capable of analyzing and processing digital radiographic images and of calculating values of density close to the values of the object under study. Recently, various paid solutions have the support to perform radiographic densitometry. The purpose of this study is to develop a computational solution of free code to calculate bone density starting from the radiographic densitometry. In order to test the software I performed an experiment that started with the radiography of an aluminum ladder of unknown values. I performed 10 repetitions and evaluated steps 4,5,6,7, and 8 of the aluminum ladder. The results I achieved with ODR-ATA for steps of number 5,6,7, and 8 show a precision of 3,64%% and 3,63% respectively, which attest for the validity and reliability of the software in the discovery of the bone density obtained through the radiographic densitometry
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Antonietto, Eduardo. "Densidade mineral óssea de vértebras de ratos wistar suspensos pela cauda por 15 e 36 dias /." Araçatuba : [s.n.], 2010. http://hdl.handle.net/11449/92193.
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Orientador: Mário Jefferson Quirino Louzada<br>Banca: Roberto Carvalhal<br>Banca: Silvana Martinez Baraldi Artoni<br>Resumo: A suspensão de ratos pela cauda é modelo utilizado para investigar o comportamento ósseo em animais impossibilitados de se locomoverem. O osso é um tecido adaptativo que se desenvolve em sua estrutura e função, entre outros fatores, em resposta a forças mecânicas aplicadas a ele e demandas metabólicas que o mesmo venha sofrer. A ausência de forças mecânicas e de deformação óssea faz com que ocorra uma diminuição na deposição de cálcio por ausência de estímulos nos osteoblastos e osteócitos, favorecendo a ação dos osteoclastos, tornando o osso enfraquecido e quebradiço. Portanto, a ação mecânica é necessária para estimular a resposta óssea local e, assim, proporcionar seu crescimento e remodelamento. O objetivo deste estudo foi avaliar, através da densitometria radiográfica, se a suspensão pela cauda por 15 e 36 dias altera a densidade mineral óssea das vértebras cervical (C3), torácica (T6) e lombar (L1 e L3) de ratos Wistar. Trinta Rattus norvegicus albinus, adultos, machos, linhagem Wistar, massa corpórea média de ± 350g, foram divididos em 3 grupos: controle (n=10) - não suspenso; S15 (n=10) - suspenso por 15 dias e S36 (n=10) - suspenso por 36 dias. Para análise densitométrica as vértebras foram radiografadas, escaneadas, digitalizadas e analisadas pelo programa computacional ImageJ®. Houve aumento estatisticamente significante da densidade mineral óssea no grupo S15, provavelmente pela inquietação dos animais à suspensão, com diminuição no grupo S36, fato este hipoteticamente ligado à acomodação dos mesmos, concluindo que a suspensão pela cauda alterou a densidade mineral óssea num primeiro momento com diminuição com o passar do tempo<br>Abstract: The suspension of rats by the tail model is used to investigate the behavior of bone in animals unable to move around. Bone is an adaptative tissue that develops in structure and function, among other factors, in response to mechanical forces applied to it and metabolic demands that it will suffer. The absence of mechanical forces and deformation of bone that occurs causes a decrease in calcium deposition in the absence of stimuli on osteoblasts and osteocytes, favoring the action of osteoclasts, making bones weak and brittle. Therefore, the mechanical action is necessary to stimulate local bone response and thus provide growth and remodeling. The aim of this study was to evaluable by radiographic densitometry, the tail suspension for 15 and 36 days alter the bone mineral density of cervical vertebrae (C3), thoracic (T6) and lumbar (L1 and L3) of Wistar rats. Thirty Rattus norvegicus albinus, adult, male, Wistar strain, average body mass ± 350g, were divided into 3 groups: control (n = 10) - not suspended; S15 (n = 10) - suspended for 15 days and S36 (n = 10) - suspended for 36 days. For densitometric analysis vertebrae were radiographed, scanned, digitized and analyzed by the computer program ImageJ ®. There was a statistically significant increase in bone mineral density in group S15, probably by the restlessness of the animals to the suspension, with a decrease in group S36, and this hypothetically is linked to the accommodation of the rats, concluding that the tail suspension altered bone mineral density in first time with a decrease over time<br>Mestre
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Giovanini, Ellen Greves [UNESP]. "Análise densitométrica digital do processo de reparo em dentes de rato reimplantados." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/91434.
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giovanini_eg_me_araca.pdf: 1544057 bytes, checksum: 1b518f21ba8bc63249a3f29eb78ba402 (MD5)<br>A avulsão dentária é caracterizada pelo completo deslocamento do dente do seu alvéolo e a melhor forma de tratar um dente avulsionado é o seu reimplante. Mesmo diante das melhores circunstâncias os reimplantes tardios falham devido à reabsorção radicular que é detectada apenas durante a avaliação radiográfica. A imagem digital surgiu como um recurso diagnóstico rápido e de fácil utilização sendo considerada precisa. Para diminuir a variabilidade de interpretação é sugerida a análise radiográfica quantitativa por meio da densidade radiográfica. O propósito deste trabalho foi analisar comparativamente o processo de reparo do reimplante dental em ratos utilizando a análise densitométrica no sistema digital Digora. Foram utilizados 30 ratos machos, divididos em 3 grupos de 10 animais, que tiveram seu incisivo superior direito extraído e tratado da seguinte forma: grupo I - reimplante imediato, grupo II - reimplante tardio sem tratamento e o grupo III - reimplante tardio com tratamento da superfície radicular utilizando raspagem do ligamento e fluoreto de sódio. Os animais foram sacrificados após 60 dias do ato operatório, suas maxilas foram separadas e as imagens radiográficas obtidas de forma que sobre cada placa óptica ficassem as duas hemimaxilas (tratada e controle), o penetrômetro de alumínio e a identificação. Foram realizadas medidas de densidade em áreas padronizadas no sistema Digora. Os valores densitométricos encontrados foram submetidos à análise de variância e teste de Tuckey, e análise não paramétrica do número de áreas de reabsorção. Podemos concluir que a análise densitométrica constitui um importante exame complementar para o acompanhamento dos reimplantes uma vez que permitiu a detecção de reabsorção radicular em todos os grupos, cuja ordem decrescente de envolvimento foi o grupo do reimplante tardio sem tratamento...<br>The dental replanted has been considered the best treatment of the tooth avulsion, which is characterized by complete alveolar dislodgment of the tooth. Despite of the adequate clinical situations, the delayed replantation fails due to the root resorption that is detected during the radiographic evaluation. The use of the digital image represent a fast and easy diagnostic resource, furthest more precise. The quantitative radiographic analysis has been suggested to reduce the interpretation variability through the radiographic density. The purpose of this work was to analyze the process of repair of the dental replanted using the digital densitometry in the Digora system. The 30 male rats were divided in 3 groups of 10 animals, and their right superior incisor were extracted and treated agreement with their group: group I - immediate replanted, group II - delayed replanted without treatment and the group III - delayed replanted with treatment of the root surface using fluoride of sodium. The animals were sacrificed after 60 days operative act, your jawbones were separate and the radiographic images obtained so that on each optical plate were the two jawbones (treated and control), the aluminum step wedge and the identification. The radiographic density of radicular standardized area in Digora system was measured. The densitometric values were submitted to the variance analysis and test of Tuckey and analysis non parametric of the number of areas root resoption. We can end that digital densitometry analysis it an important complementary for replanted evaluation once it allowed the detection of root reabsorption in all of the groups, whose decreasing order of involvement was the group of the delayed replanted without treatment, following for the delayed replanted with treatment and last the immediate replanted.
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Camargo, Ângela Jordão. "Correlação da qualidade óssea mandibular com a qualidade óssea nas falanges da mão não dominante." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/23/23139/tde-03112016-201159/.
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A osteoporose é uma epidemia mundial, exprime altas taxas de morbidade e mortalidade, resultando também em altos custos sociais. O exame de densitometria óssea por dupla emissão de raios-X (DXA) é o exame padrão ouro para o diagnóstico da doença, porém a baixa disponibilidade de equipamentos e o alto custo dificultam o acesso ao exame, principalmente nos países pobres e nos emergentes. Desta forma absorciometria radiografica da falange (AR) se destaca pois tem baixa dose de radiação, é mais simples utilizando apenas uma radiografia de mão e um software. A radiografia panorâmica é amplamente utilizada na rotina do atendimento odontológico no mundo todo, e tem sido estudada para a avaliação de pacientes com baixa densidade mineral óssea (DMO). O objetivo deste estudo foi correlacionar a qualidade óssea mandibular, por meio dos índices radiomorfométricos em radiografia panorâmica, com a qualidade óssea das falanges da mão não dominante, por meio da AR. A amostra constituiu-se por 167 pacientes (128 mulheres e 39 homens) com média de idade de 52.09 (± 11.5) divididos em quatro grupos de acordo com o exame AR: Mulheres Normais (MN) com 92; Mulheres Doentes (MD) com 36; Homens Normais (HN) com 25; e Homens Doentes (HD) com 14.9. Os resultados demonstraram que houve correlação (p<0.00037) entre a classificação de Klemetti com a AR. A análise de variância de IM, IG, IFM, IFP apresentaram diferenças significativas (p <0.05) entre os grupos comparados. A área encontranda sob a curva ROC foi de 0.74 (SE = 97.4%, ES= 78%) para IM, 0.79 (SE = 94, ES= 54%) para IG, 0.77 (SE =94.8%, ES= 64%) para IFM, 0.76 (SE= 93,1%, ES= 62%) para IFP, 0.71(SE =96.5%, ES 86%) para DF. Concluiu-se que a análise dos índices radiomorfométricos apresentaram acurácia moderadamente precisa para a detecção da alteração na qualidade óssea mandibular de acordo com a AR.<br>Osteoporosis is a worldwide epidemic, expressed high rates of morbidity and mortality, also resulting in high social costs. Bone densitometry by dual energy X-ray absorptiometry (DXA) is gold standard for the diagnosis of disease, but the low availability of equipment and high costs make it difficult to take, especially in poor and emerging countries. Thus absorptiometry radiographically phalanx (AR) stands out because has low radiation dose, it is simpler using only one hand X-ray and software. Panoramic radiography is widely used in routine dental care worldwide, and has been studied for the evaluation of patients with low bone mineral density (BMD).The aim of this study was to correlate the mandibular bone quality through radiomorphometric indices in panoramic radiograph with bone quality of the non-dominant hand phalanges, through AR. The sample consisted of 167 patients (128 women and 39 men) with a mean age of 52.09 (± 11.5) divided into four groups according to the AR test: Healthy Women (MN) 92; Diseased Women (MD) 36; Men healthy (HN) 25 and Diseased Men (HD) with 14.9. The results showed correlation (p <0.00037) between the Klemetti with RA. Variance analysis IM, IG, MFIs, IFP shown significant differences (p <0.05) between the two groups. Area under the ROC curve was 0.74 (SE = 97.4%, ES = 78%) for MI, 0.79 (SE = 94, ES = 54%) for IG, 0.77 (SE = 94.8%, ES = 64%) for MFIs, 0.76 (SE = 93.1%, ES = 62%) for IFP, 0.71 (SE = 96.5%, ES 86%) for DF. It was concluded that the analysis of radiomorphometric indices showed moderate accuracy for detecting the change in mandibular bone quality according to AR.
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Fonzar, José Francisco [UNESP]. "Avaliação qualitativa e quantitativa do reparo ósseo por imagens processadas pelos programas ImageJ e ODR." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/92194.
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fonzar_jf_me_araca.pdf: 567190 bytes, checksum: e8f229d7549fc4d7d1fe1b80793393d1 (MD5)<br>Neste trabalho foram avaliados 19 cães, que deram entrada nos Hospitais Veterinários de Andradina com fraturas de ossos longos e de quatro que foram osteotomisados no Hospital Veterinário de Araçatuba, sem levar em consideração a raça, idade, sexo e tamanho dos animais acometidos de fratura, apenas o local da lesão, esta em ossos longos. As fraturas foram radiografadas em um primeiro momento, os animais encaminhados ou não á cirurgia, como tramite normal dentro da rotina de um Hospital. Este trabalho teve como objetivo demonstrar que os programas computacionais “ODR” e ImageJ, são ferramentas que podem auxiliar no diagnóstico, fornecendo dados quantitativos e qualitativos do reparo ósseo, favorecendo o diagnóstico na avaliação da fratura, como também, acompanhar o processo de reparo ósseo. As radiografias feitas após cirurgia e de acompanhamento, foram digitalizadas por um scanner, e avaliadas com o programa computacional “ImageJ”. Os resultados obtidos foram analisados e comparados a laudos radiográficos visuais, demonstrando ser exeqüível e viável, de baixo custo, fornecendo dados quantitativos do diagnóstico e acompanhamento do reparo ósseo<br>This study evaluated 19 dogs, which were received in Hospitals Veterinarians Andradina with long bone fractures and four were osteotomisados at the Veterinary Hospital of Araçatuba, without regard to race, age, sex and size of animals suffering from fracture, only the location of the lesion, the long bones. The fractures were radiographed at first, the animals sent to surgery or not, as tramite normal routine within a hospital. This study aimed to demonstrate that computer programs ODR and “ImageJ”, are tools that can aid in diagnosis, providing quantitative and qualitative data of bone repair, favoring the diagnosis in the evaluation of the fracture, but also monitor the repair process bone. The radiographs made after surgery and follow-up (when possible), were scanned by a scanner and evaluated with the computer programs ImageJ. The results were analyzed and compared the radiographic findings visually demonstrated to be feasible and viable, low cost, providing quantitative data of diagnosis and monitoring of bone healing
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Fonzar, José Francisco. "Avaliação qualitativa e quantitativa do reparo ósseo por imagens processadas pelos programas "ImageJ" e "ODR" /." Araçatuba : [s.n.], 2010. http://hdl.handle.net/11449/92194.
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Orientador: Mário Jefferson Quirino Louzada<br>Banca: Ricardo Velludo Gomes Soutello<br>Banca: Gilberto Aparecido Coclete<br>Resumo: Neste trabalho foram avaliados 19 cães, que deram entrada nos Hospitais Veterinários de Andradina com fraturas de ossos longos e de quatro que foram osteotomisados no Hospital Veterinário de Araçatuba, sem levar em consideração a raça, idade, sexo e tamanho dos animais acometidos de fratura, apenas o local da lesão, esta em ossos longos. As fraturas foram radiografadas em um primeiro momento, os animais encaminhados ou não á cirurgia, como tramite normal dentro da rotina de um Hospital. Este trabalho teve como objetivo demonstrar que os programas computacionais "ODR" e ImageJ, são ferramentas que podem auxiliar no diagnóstico, fornecendo dados quantitativos e qualitativos do reparo ósseo, favorecendo o diagnóstico na avaliação da fratura, como também, acompanhar o processo de reparo ósseo. As radiografias feitas após cirurgia e de acompanhamento, foram digitalizadas por um scanner, e avaliadas com o programa computacional "ImageJ". Os resultados obtidos foram analisados e comparados a laudos radiográficos visuais, demonstrando ser exeqüível e viável, de baixo custo, fornecendo dados quantitativos do diagnóstico e acompanhamento do reparo ósseo<br>Abstract: This study evaluated 19 dogs, which were received in Hospitals Veterinarians Andradina with long bone fractures and four were osteotomisados at the Veterinary Hospital of Araçatuba, without regard to race, age, sex and size of animals suffering from fracture, only the location of the lesion, the long bones. The fractures were radiographed at first, the animals sent to surgery or not, as tramite normal routine within a hospital. This study aimed to demonstrate that computer programs "ODR" and "ImageJ", are tools that can aid in diagnosis, providing quantitative and qualitative data of bone repair, favoring the diagnosis in the evaluation of the fracture, but also monitor the repair process bone. The radiographs made after surgery and follow-up (when possible), were scanned by a scanner and evaluated with the computer programs "ImageJ". The results were analyzed and compared the radiographic findings visually demonstrated to be feasible and viable, low cost, providing quantitative data of diagnosis and monitoring of bone healing<br>Mestre
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Jorgenson, Todd F. "Comparison of two imaging modalities : F-speed film and digital images for detection of osseous defects in patients with vertical bone defects /." Oklahoma City : [s.n.], 2003.
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Pedrosa, Esio Fortaleza Nascimento Chaves. "Correlação entre fatores de qualidade ossea mandibular e densidade ossea mineral em mulheres brasileiras." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288536.
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Orientador: Plauto Christopher Aranha Watanabe<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-13T08:02:53Z (GMT). No. of bitstreams: 1
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Previous issue date: 2009<br>Resumo: Existem diversos métodos para avaliar a qualidade óssea através de sua densidade. Estes métodos variam no custo, disponibilidade e na dose de radiação. O cirurgião-dentista atua nos elementos dentários e nas estruturas de suporte dos maxilares e mandíbula, componentes do sistema estomatognático. Nas últimas décadas têm se pesquisado muito a respeito da qualidade óssea das estruturas de suporte dos elementos dentários, principalmente na mandíbula, com convincentes
evidências de perda óssea bucal associada com a osteoporose, particularmente um aumento da porosidade cortical do osso alveolar e corpo mandibular. O Objetivo deste estudo foi avaliar a correlação de três aspectos da qualidade óssea mandibular, em radiografias panorâmicas, correlacionando-os com medidas de densidade óssea mineral (DOM) do DEXA realizados no radio, coluna e fêmur. Os resultados apresentaram correlação significante entre a classificação morfológica do córtex (CC) e a espessura da cortical basal mandibular com a DOM. Não houve
correlação entre os fatores dimensão fractal (DF) e porcentagem de pixels pretos (ET) com a DOM. Pode-se concluir que é possível referenciar pacientes para o
DEXA com a finalidade de pesquisar a baixa massa óssea mineral pelas análises
da cortical inferior da mandíbula.<br>Abstract: There are several methods to evaluate the bone quality by the density. These methods vary in cost, availability and the radiation dose. The dentist works on teeth and in the maxilla and mandible support structures, components of the stomatognathic system. Recently, it has been searched too much about the bone quality of the teeth support structures, especially in the jaw with evidences of oral bone loss associated with osteoporosis, particularly an increase in cortical porosity
of the alveolar bone and mandibular body. The aim of this study was to evaluate the interrelationship of three aspects of mandibular bone quality on panoramic radiographs, correlating them with measures of bone mineral density (BMD) of DEXA performed in radio, spine and femur. The results showed a significant correlation between the cortex morphological classification and cortex thickness with lower BMD. There was no correlation between the fractal dimension (FD)
factors and black pixels (ET) percentage with the BMD. It could be concluded that it is possible to refer patients for DEXA in order to search for low bone mineral analysis of the lower mandibular cortex.<br>Mestrado<br>Radiologia Odontologica<br>Mestre em Radiologia Odontológica
Books on the topic "Radiographic densitometry"
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Erlichman, Martin. Radiographic absorptiometry for measuring bone mineral density. U.S. Dept. of Health and Human Services, Public Health Service, 1988.
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Erlichman, Martin. Dual photon absorptiometry for measuring bone mineral density. National Center for Health Services Research and Health Care Technology Assessment, U.S. Dept. of Health and Human Services, Public Health Service, 1987.
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Wahner, Heinz W. The evaluation of osteoporosis: Dual energy x-ray absorptiometry in clinical practice. Martin Dunitz, 1994.
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Geusens, Piet. Photon absorptiometry in osteoporosis: Bone mineral measurements in animal models and in humans. Katholieke Universiteit Leuven, Fakulteit Geneeskunde, Departement Reumatologie, Artritis en Metabole Botziekten Onderzoekseenheid, 1992.
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Jiang, Yebin. Radiology and histology in the assessment of bone quality. Catholic University of Leuven, Faculty of Medicine, Arthritis and Metabolic Bone Disease Research Unit, 1995.
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International Workshop on Non-Invasive Bone Measurements (2nd 1987 Leuven, Belgium). Bone mineral measurements by photon absorptiometry: Methodological problems : proceedings of the second International Workshop on Non-Invasive Bone Measurements, held September 24-25, 1987, University Hospital Pellenberg, Leuven, Belgium. Leuven University Press, 1988.
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Roche, Alex F. Assessing the skeletal maturity of the hand-wrist: Fels method. Thomas, 1988.
Find full textBook chapters on the topic "Radiographic densitometry"
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van Kuijk, C., and H. K. Genant. "Radiogrammetry and Radiographic Absorptiometry." In Bone Densitometry and Osteoporosis. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-80440-3_14.
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Huddleston, Alan L. "Radiographic Film Methods." In Quantitative Methods in Bone Densitometry. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-1725-8_2.
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Srinivasan, Sivasubramanian, and Wilfred C. G. Peh. "Radiography in Osteoporosis." In Osteoporosis and Bone Densitometry Measurements. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/174_2012_728.
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Glüer, Claus-C. "Bone Densitometry, Radiography, and Quantitative Ultrasound for the Diagnostic Assessment of Osteoporosis." In Osteoporosis in Clinical Practice. Springer London, 2004. http://dx.doi.org/10.1007/978-0-85729-402-9_7.
Full textConference papers on the topic "Radiographic densitometry"
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Muscio, J., H. Somacal, A. A. Burlon, et al. "Radiographic Technique for Densitometric Studies Using Heavy Ion Microbeams." In VII Latin American Symposium on Nuclear Physics and Applications. AIP, 2007. http://dx.doi.org/10.1063/1.2813866.
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Shimura, Kazuo, Nobuyoshi Nakajima, Hiroshi Tanaka, Masamitsu Ishida, and Hisatoyo Kato. "Basic investigation of dual-energy x-ray absorptiometry for bone densitometry using computed radiography." In Medical Imaging 1993, edited by Rodney Shaw. SPIE, 1993. http://dx.doi.org/10.1117/12.154582.
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Dinten, Jean-Marc, Christine Robert-Coutant, and Michel Darboux. "Dual-energy x-ray absorptiometry using 2D digital radiography detector: application to bone densitometry." In Medical Imaging 2001, edited by Larry E. Antonuk and Martin J. Yaffe. SPIE, 2001. http://dx.doi.org/10.1117/12.430945.
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Boudousq, V., T. Bordy, G. Gonon, and J. M. Dinten. "Small animal bone density and morphometry analysis with a dual energy x-ray absorptiometry bone densitometer using a 2D digital radiographic detector." In Medical Imaging, edited by Michael J. Flynn. SPIE, 2005. http://dx.doi.org/10.1117/12.593079.
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