Journal article
An adaptive optimal control design for a bolus chasing computed tomography angiography
IEEE transactions on control systems technology, Vol.16(1), pp.60-69
2008
DOI: 10.1109/TCST.2007.903082
Abstract
To improve imaging quality and to reduce contrast dose and radiation exposure, an optimal adaptive bolus chasing controller is proposed and tested based on actual patient data. The controller estimates and predicts the unknown 2D bolus density online and then determines the optimal control actions. Tracking errors are mathematically quantified in terms of estimation errors. The test results not only support the analytical analysis and exhibit its superior performance over the current constant-speed controller, but also demonstrate the clinical feasibility.
Details
- Title: Subtitle
- An adaptive optimal control design for a bolus chasing computed tomography angiography
- Creators
- Er-Wei BAI - Department of Electrical and Computer Engineering, The University of Iowa, Iowa City, IA 52242, United StatesZHIJUN CAI - Department of Electrical and Computer Engineering, The University of Iowa, Iowa City, IA 52242, United StatesRobert MCCABE - Department of Electrical and Computer Engineering, University of Illinois, Urbana-Champaign, IL 61801, United StatesGe Wang - School of Biomedical Engineering and Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
- Resource Type
- Journal article
- Publication Details
- IEEE transactions on control systems technology, Vol.16(1), pp.60-69
- Publisher
- Institute of Electrical and Electronics Engineers
- DOI
- 10.1109/TCST.2007.903082
- ISSN
- 1063-6536
- eISSN
- 1558-0865
- Language
- English
- Date published
- 2008
- Academic Unit
- Electrical and Computer Engineering
- Record Identifier
- 9984083998402771
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