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Correlation between gray values in cone-beam computed tomography and histomorphometric analysis
Anbiaee Najmeh,Shafieian Reihaneh,Shiezadeh Farid,Shakeri Mohammadtaghi,Naqipour Fatemeh 대한영상치의학회 2022 Imaging Science in Dentistry Vol.52 No.4
Purpose: The aim of this study was to analyze the relationships between bone density measurements obtained using cone-beam computed tomography (CBCT) and morphometric parameters of bone determined by histomorphometric analysis. Materials and Methods: In this in vivo study, 30 samples from the maxillary bones of 7 sheep were acquired using a trephine. The bone samples were returned to their original sites, and the sheep heads were imaged using CBCT. On the CBCT images, gray values were calculated. In the histomorphometric analysis, the total bone volume, the trabecular bone volume (referred to simply as bone volume), and the trabecular thickness were assessed. Results: Statistical testing showed significant correlations between CBCT gray values and total bone volume (r = 0.537, P = 0.002), bone volume (r = 0.672, P<0.001), and trabecular thickness (r = 0.692, P<0.001), as determined via the histomorphometric analysis. Conclusion: The results indicate a significant and acceptable association between CBCT gray values and bone volume, suggesting that CBCT may be used in bone densitometry.
Route Selection in a Dynamic Multi-Agent Multilayer Electronic Supply Network
Mahdavi, Iraj,Fazlollahtabar, Hamed,Shafieian, S. Hosna,Mahdavi-Amiri, Nezam Korea Data Strategy Society 2010 Journal of information technology applications & m Vol.17 No.1
We develop an intelligent information system in a multilayer electronic supply chain network. Using the internet for supply chain management (SCM) is a key interest for contemporary managers and researchers. It has been realized that the internet can facilitate SCM by making real time information available and enabling collaboration between trading partners. Here, we propose a multi-agent system to analyze the performance of the elements of a supply network based on the attributes of the information flow. Each layer consists of elements which are differentiated by their performance throughout the supply network. The proposed agents measure and record the performance flow of elements considering their web interactions for a dynamic route selection. A dynamic programming approach is applied to determine the optimal route for a customer in the end-user layer.
Correlation between gray values in cone-beam computed tomography and histomorphometric analysis
Najmeh, Anbiaee,Reihaneh, Shafieian,Farid, Shiezadeh,Mohammadtaghi, Shakeri,Fatemeh, Naqipour Korean Academy of Oral and Maxillofacial Radiology 2022 Imaging Science in Dentistry Vol.52 No.-
Purpose: The aim of this study was to analyze the relationships between bone density measurements obtained using cone-beam computed tomography (CBCT) and morphometric parameters of bone determined by histomorphometric analysis. Materials and Methods: In this in vivo study, 30 samples from the maxillary bones of 7 sheep were acquired using a trephine. The bone samples were returned to their original sites, and the sheep heads were imaged using CBCT. On the CBCT images, gray values were calculated. In the histomorphometric analysis, the total bone volume, the trabecular bone volume (referred to simply as bone volume), and the trabecular thickness were assessed. Results: Statistical testing showed significant correlations between CBCT gray values and total bone volume (r =0.537, P =0.002), bone volume (r =0.672, P<0.001), and trabecular thickness (r =0.692, P<0.001), as determined via the histomorphometric analysis. Conclusion: The results indicate a significant and acceptable association between CBCT gray values and bone volume, suggesting that CBCT may be used in bone densitometry.
Route Selection in a Dynamic Multi-Agent Multilayer Electronic Supply Network
Iraj Mahdavi,Hamed Fazlollahtabar,S. Hosna Shafieian,Nezam Mahdavi-Amiri 한국데이타베이스학회 2010 Journal of information technology applications & m Vol.17 No.1
We develop an intelligent information system in a multilayer electronic supply chain network. Using the internet for supply chain management (SCM) is a key interest for contemporary managers and researchers. It has been realized that the internet can facilitate SCM by making real time information available and enabling collaboration between trading partners. Here, we propose a multi-agent system to analyze the performance of the elements of a supply network based on the attributes of the information flow. Each layer consists of elements which are differentiated by their performance throughout the supply network. The proposed agents measure and record the performance flow of elements considering their web interactions for a dynamic route selection. A dynamic programming approach is applied to determine the optimal route for a customer in the end-user layer.