Oral cleft volumetric assessment by 3D multislice computed tomographic images

Albuquerque, Marco Antônio Portela; Gaia, Bruno Felipe; Cavalcanti, Marcelo Gusmão Paraíso

doi:10.1016/j.ijom.2011.05.015

Cited by 15 publications

(18 citation statements)

References 22 publications

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“…[7][8][9]21,23 Intra-and interexaminer analyses demonstrated relevant results for all anatomic structures. The worst results found using Vitrea software showed a major difference of 0.18 mm for all craniometric measurements.…”

Section: -17mentioning

confidence: 83%

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Comparison of precision and accuracy of linear measurements performed by two different imaging software programs and obtained from 3D-CBCT images for Le Fort I osteotomy

Gaia

Pinheiro²,

Umetsubo³

et al. 2013

Dentomaxillofacial Radiology

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Objective: The purpose of this study was to compare the precision and accuracy of linear measurements for Le Fort I osteotomy performed by two different imaging software programs and obtained from three-dimensional cone beam CT (3D-CBCT) images. Methods: The study population consisted of 11 dried skulls submitted to CBCT, which generated 3D images. Linear measurements were based on craniometric anatomical landmarks pre-defined by the authors as specifically used for Le Fort I osteotomy and were identified by two radiologists twice each, independently, using Vitrea 3.8.1 (Vital Images Inc., Plymouth, MN) and open-source digital imaging communication in medicine viewer OsiriX 1.2 64-bit (Pixmeo, Geneva, Switzerland). Subsequently, a third examiner made physical measurements using a digital caliper (167 series; Mitutoyo Sul Americana Ltd, Suzano, SP, Brazil). Results: The results demonstrated a statistically significant difference between OsiriX and the gold standard, especially in the pterygoid process (TPtg L 5 0.019, LLpPtg R 5 0.016 and LLpPtg L 5 0.012). Vitrea showed no statistical difference in comparison with the gold standard, and showed a high level of accuracy in all the measurements performed. The major difference found was 0.42 mm (LLpPtg R). Interexaminer analysis ranged from 0.90 to 0.97 using Vitrea and from 0.8 to 0.97 using OsiriX. Intraexaminer correlation coefficient ranged from 0.90 to 0.98 and from 0.84 to 0.98 for Examiners 1 and 2, respectively, using Vitrea and from 0.93 to 0.99 for Examiner 1 and from 0.64 to 0.96 for Examiner 2 using OsiriX. Conclusion: Vitrea may be considered as precise and accurate, insofar as it was able to perform all the 3D linear measurements. On the other hand, linear measurements performed using OsiriX were not successful in producing accurate linear measurements for Le Fort I osteotomy.

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Section: -17mentioning

confidence: 83%

“…The skulls were placed in a bulk bag with water for beam attenuation and to mimic the soft tissues following the procedures previously described by Lopes et al, 7 Moreira et al 8 and Albuquerque et al 9 . The skulls were then placed in the CBCT to keep them in a position similar to that of a clinical situation, i.e.…”

Section: Methodsmentioning

confidence: 99%

Comparison of precision and accuracy of linear measurements performed by two different imaging software programs and obtained from 3D-CBCT images for Le Fort I osteotomy

Gaia

Pinheiro²,

Umetsubo³

et al. 2013

Dentomaxillofacial Radiology

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“…17 CBCT was additionally found to be equally valid to multislice CT in following up osseous volumetric changes in a cleft palate model. 18 The study was limited as just one type of CBCT scanner was used; therefore, findings could be different with other CBCT systems. In addition, the samples were stationary and therefore no effects of motion artefacts could be simulated.…”

Section: Discussionmentioning

confidence: 99%

Accuracy of cone beam computed tomography in following simulated autogenous graft resorption in maxillary sinus augmentation procedure: anex vivostudy

Umanjec-Korac¹,

Parsa²,

Nikoozad³

et al. 2016

Dentomaxillofacial Radiology

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Objectives: Maxillary sinus augmentation is a well-documented procedure with long-term success in implant dentistry. Assessing graft volume changes over time is crucial, since resorption remains a major concern. CBCT is commonly employed to assess the quantity and quality of the available bone at the implant receptor site. However, its applicability in following graft volume changes is yet to be determined. The study aimed to assess CBCT accuracy in following simulated graft resorption ex vivo. Methods: 4 differently sized autogenous bone blocks harvested from the zygomatic buttress were bilaterally placed in the maxillary sinus of 12 human cadavers. The Accuitomo (J Morita, Kyoto, Japan) CBCT system was employed to scan each one of the 4 grafts in each of the 12 cadavers using identical settings. Gold standard graft measurements were obtained using micro-CT. One independent observer assessed the volume of each graft on CBCT images twice. Intraobserver reliability was assessed using Cohen's kappa and one-sample t-test was used to compare CBCT with micro-CT volumetric measurements. Results: The mean micro-CT graft volumes were 97.12 ± 1.4, 197.32 ± 3.4, 361.41 ± 4.2 and 1040.11 ± 3.2 mm 3 for Grafts 1-4, respectively, and the mean CBCT volumes of the corresponding grafts were 115. 39 ± 7.01, 205.97 ± 9.91, 404.05 ± 16.81 and 1138.04 ± 20.98 mm 3 . CBCT measurements were statistically significantly different from micro-CT measurements (p 5 0.001). Intraobserver reliability was good (r 5 0.78). Conclusions: In every case, CBCT overestimated the maxillary graft volume in comparison with micro-CT. However, the measurement differences were limited and might not influence clinical performance.

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“…As vantagens e desvantagens da TCMS em comparação com a TCFC têm sido amplamente relatadas na literatura para diferentes propósitos como na avaliação da qualidade das imagens, acurácia no diagnóstico de processos patológicos, além de análises craniométricas lineares, angulares e volumétricas (Lopes et al, 2008;Berco et al, 2009;Moreira et al, 2009;Albuquerque et al, 2011;Al-Ekrish;Ekram, 2011 …”

Section: Tcms X Tcfcunclassified

“…Na osteotomia tipo Le Fort I, amplamente indicada na correção das deformidades dentofaciais de maxila, um cuidado especial na avaliação do processo pterigóide da maxila deve ser enfatizado na tentativa de minimizar intercorrências ou complicações Park, 2007;Lopes et al, 2008;Swennen et al, 2009;Xia et al, 2009;Popat et al, 2010;Tucker et al, 2010;Piñeiro-Aguilar et al, 2011;Quevedo et al, 2011 (Cavalcanti et al, 1999;Cavalcanti et al, 2004;Lopes et al, 2008;Albuquerque et al, 2011), e a tomografia computadorizada por feixe cônico (Pinsky et al, 2006;Lagravère et al, 2008;Periago et al;Moreira et al, 2009;Luu et al, 2012), resultando na validação de muitos experimentos. Entretanto, estudos avaliando os diferentes métodos de mensuração linear empregados pelos programas de imagem por meio da reconstrução 3D no planejamento da osteotomia tipo Le Fort I são escassos e, maiores esclarecimentos sobre sua precisão e a acurácia se fazem necessários.…”

Section: Introductionunclassified

Avaliação de medidas lineares para osteotomia tipo Le Fort I por meio de diferentes programas de imagem utilizando a tomografia computadorizada

Santos¹

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Aos meus familiares pela ajuda, paciência e compreensão, em especial aos meus pais, Clóvis e Rosa, e a minha avó Guilhermina. A família é e sempre será o alicerce principal da vida. Obrigado pelos ensinamentos e pelo amor incondicional; sou o que sou graças a vocês.Ao meu querido e amado irmão, Diego, um exemplo, verdadeira inspiração pessoal e profissional.A minha amada esposa, Tatiana, sinônimo de amor, alegria, companheirismo.Obrigado por me apoiar sempre e me amar desta forma única. Encontrar o amor verdadeiro é para poucos e certamente faz a vida muito melhor, diminuindo as dificuldades e engrandecendo as conquistas. O sucesso da cirurgia ortognática está relacionado com diversos fatores como análise facial precisa e acurada, e exames de imagem com alta qualidade.Atualmente, diversos programas de imagens tridimensionais, comerciais e abertos, estão disponíveis no auxílio diagnóstico, elaboração do plano de tratamento e simulação do procedimento cirúrgico para correção das deformidades dentofaciais.Entretanto, estudos avaliando os diferentes métodos de mensuração linear empregados pelos programas de imagem por meio da reconstrução 3D no planejamento da osteotomia tipo Le Fort I são escassos e, maiores esclarecimentos sobre sua precisão e a acurácia são necessários. O objetivo deste estudo foi estabelecer: a) precisão e acurácia de medidas lineares tridimensionais para osteotomia tipo Le Fort I obtidas por meio da tomografia computadorizada multislice and 0.88 0.98 for observers 1 and 2 respectively using the Vitrea; 0.58 to 0.90 and 0.48 to 0.85 for OsiriX, and 0.80 to 0.96 and 0.57 to 0.92 using Dolphin. Vítrea software showed no statistically significant differences for intra-and inter-observer analysis and physical measurements using MSCT and CBCT. Regarding the analysis of software's, statistical differences were found with the program OsiriX and Dolphin in comparison to gold standard.

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Oral cleft volumetric assessment by 3D multislice computed tomographic images

Cited by 15 publications

References 22 publications

Comparison of precision and accuracy of linear measurements performed by two different imaging software programs and obtained from 3D-CBCT images for Le Fort I osteotomy

Comparison of precision and accuracy of linear measurements performed by two different imaging software programs and obtained from 3D-CBCT images for Le Fort I osteotomy

Accuracy of cone beam computed tomography in following simulated autogenous graft resorption in maxillary sinus augmentation procedure: anex vivostudy

Avaliação de medidas lineares para osteotomia tipo Le Fort I por meio de diferentes programas de imagem utilizando a tomografia computadorizada

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