Preliminary experimental results on controlled cardiac computed tomography: A phantom study

Article type: Research Article

Authors: Lu, Yang^; | Cai, Zhijun | Wang, Ge | Zhao, Jun | Bai, Er-Wei

Affiliations: VT-WFU School of Biomedical Engineering & Sciences, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA | Department of Electrical and Computer Engineering, University of Iowa, Iowa City, IA 52242, USA | Department of Biomedical Engineering, Shanghai JiaoTong University, Shanghai 200240, China

Note: [] Corresponding author: Er-Wei Bai, PhD, Departments of Electrical and Computer Engineering, University of Iowa, Iowa City, IA 52242, USA. E-mail: er-wei-bai@uiowa.edu

Abstract: In this paper, we present the preliminary experimental results on controlled cardiac computed tomography (CT), which aims to reduce the motion artifacts by means of controlling the x-ray source rotation speed. An innovative cardiac phantom enables us to perform this experiment without modifying the scanner. It is the first experiment on the cardiac CT with speed controlled x-ray source. Experimental results demonstrate that the proposed method successfully separates the phantom images at different phases (improve the temporal resolution) through controlling the x-ray speed.

Keywords: Cardiac computed tomography, controlled gantry rotation speed, image reconstruction

DOI: 10.3233/XST-2009-0221

Journal: Journal of X-Ray Science and Technology, vol. 17, no. 2, pp. 175-187, 2009