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Optimal design of clinical tests for the identification of physiological models of type 1 diabetes mellitus in the presence of model uncertainty
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TLDR
In this article, the problem of the identification of single individual parameters in detailed dynamic models of glucose homeostasis is considered, and the optimal model-based design of experiment techniques are used to design a set of clinical tests that allow the model parameters to be estimated in a statistically sound way, while meeting constraints related to safety of the subject and ease of implementation.Abstract:
Type 1 diabetes mellitus is a disease affecting millions of people worldwide and causing the expenditure of millions of euros every year for health care. One of the most promising therapies derives from the use of an artificial pancreas, based on a control system able to maintain the normoglycaemia in the subject affected by diabetes. A dynamic simulation model of the glucose-insulin system can be useful in several circumstances for diabetes care, including testing of glucose sensors, insulin infusion algorithms, and decision support systems for diabetes. This paper considers the problem of the identification of single individual parameters in detailed dynamic models of glucose homeostasis. Optimal model-based design of experiment techniques are used to design a set of clinical tests that allow the model parameters to be estimated in a statistically sound way, while meeting constraints related to safety of the subject and ease of implementation. The model with the estimated set of parameters represents a specific subject and can thus be used for customized diabetes care solutions. Simulated results demonstrate how such an approach can improve the effectiveness of clinical tests and serve as a tool to devise safer and more efficient clinical protocols, thus providing a contribution to the development of an artificial pancreas.read more
Citations
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Journal ArticleDOI
Diabetes: Models, Signals, and Control
TL;DR: The control of diabetes is an interdisciplinary endeavor, which includes a significant biomedical engineering component, with traditions of success beginning in the early 1960s, and progressed to large-scale in silico experiments, and automated closed-loop control (artificial pancreas).
Journal ArticleDOI
Control-Relevant Models for Glucose Control Using A Priori Patient Characteristics
TL;DR: Control-relevant models are developed for T1DM, as opposed to models that minimize a prediction error, and the parameters of these models are chosen conservatively to minimize the likelihood of hypoglycemia events.
Journal ArticleDOI
Clinical Application of Emerging Sensor Technologies in Diabetes Management: Consensus Guidelines for Continuous Glucose Monitoring (CGM)
Irl B. Hirsch,Dana U. Armstrong,Richard M. Bergenstal,Bruce A. Buckingham,Belinda P Childs,William L. Clarke,Anne L. Peters,Howard Wolpert +7 more
TL;DR: It is concluded that routine use of CGM, with real-time data showing the rate and direction of glucose change, could revolutionize current approaches to evaluating and managing glycemia.
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Review and Analysis of Blood Glucose (BG) Models for Type 1 Diabetic Patients
TL;DR: Existing glucose-insulin dynamic models dating back from early 1960s are reviewed along with an overview of meal absorption and exercise effect models for BG regulation in type 1 diabetic patients.
Journal ArticleDOI
A backoff strategy for model‐based experiment design under parametric uncertainty
TL;DR: In this paper, a general methodology is proposed to formulate and solve the experiment design problem by explicitly taking into account the presence of parametric uncertainty, so as to ensure both feasibility and optimality of the planned experiment.
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Modeling and Control of Diabetes: Towards the Artificial Pancreas
TL;DR: In this article, a survey of major simulation and control issues associated with the development of an Artificial Pancreas is presented, including the role of large-scale simulation models used to carry out in silico trials, the discussion of the specific features of the glucose control problem, the layered architecture of the artificial pancreas, and the controller tuning strategies adopted to achieve individualization of a glucose control algorithm.
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