Adaptive Bolus Chasing Computed Tomography Angiography
نویسنده
چکیده
Synchronization of the contrast bolus peak and CT imaging aperture is a crucial issue for CTA. It effects the CTA imaging quality and the necessary amount of contrast dose. In this paper, we propose an optimal adaptive bolus chasing controller. The controller estimates and predicts the unknown two dimensional bolus density on line and then determines the optimal control actions. Tracking errors are mathematically quantified in terms of estimation errors. Simulation results on the actual patient data exhibit its superior performance to the current constant-speed method. Also, the preliminary experiments demonstrate the clinical feasibility.
منابع مشابه
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