Adaptive Bolus Chasing Computed Tomography Angiography

Er-Wei Bai; Zhijun Cai; Ge Wang

doi:10.3182/20080706-5-KR-1001.01121

Back

Adaptive Bolus Chasing Computed Tomography Angiography

Journal article

Open access

Peer reviewed

Adaptive Bolus Chasing Computed Tomography Angiography

Er-Wei Bai, Zhijun Cai and Ge Wang

IFAC Proceedings Volumes, Vol.41(2), pp.6648-6653

2008

DOI: 10.3182/20080706-5-KR-1001.01121

Files and links (1)

url

https://doi.org/10.3182/20080706-5-KR-1001.01121View

Published (Version of record) Open Access

Abstract

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.

adaptive control

Computed Tomography (CT)

control algorithm

CT Angiography (CTA)

medical systems

optimal control

Details

Title: Subtitle: Adaptive Bolus Chasing Computed Tomography Angiography
Creators: Er-Wei Bai
Zhijun Cai - University of Iowa
Ge Wang - Virginia Tech
Resource Type: Journal article
Publication Details: IFAC Proceedings Volumes, Vol.41(2), pp.6648-6653
DOI: 10.3182/20080706-5-KR-1001.01121
ISSN: 1474-6670
Language: English
Date published: 2008
Academic Unit: Electrical and Computer Engineering
Record Identifier: 9984198018102771

Metrics

25 Record Views