Few-View Prereconstruction Guided Tube Current Modulation Strategy Based on the Signal-to-Noise Ratio of the Sinogram
Joint Authors
Chang, Ming
Xiao, Yongshun
Chen, Zhiqiang
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-18
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The radiation dose reduction without sacrificing the image quality as an important issue has raised the attention of CT manufacturers and different automatic exposure control (AEC) strategies have been adopted in their products.
In this paper, we focus on the strategy of tube current modulation.
It is deduced based on the signal-to-noise (SNR) of the sinogram.
The main idea behind the proposed modulation strategy is to keep the SNR of the sinogram proximately invariable using the few-view reconstruction as a good reference because it directly affects the noise level of the reconstructions.
The numerical experiment results demonstrate that, compared with constant tube current, the noise distribution is more uniform and the SNR and CNR of the reconstruction are better when the proposed strategy is applied.
Furthermore it has the potential to distinguish the low-contrast target and to reduce the radiation dose.
American Psychological Association (APA)
Chang, Ming& Xiao, Yongshun& Chen, Zhiqiang. 2015. Few-View Prereconstruction Guided Tube Current Modulation Strategy Based on the Signal-to-Noise Ratio of the Sinogram. Computational and Mathematical Methods in Medicine،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1058031
Modern Language Association (MLA)
Chang, Ming…[et al.]. Few-View Prereconstruction Guided Tube Current Modulation Strategy Based on the Signal-to-Noise Ratio of the Sinogram. Computational and Mathematical Methods in Medicine No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1058031
American Medical Association (AMA)
Chang, Ming& Xiao, Yongshun& Chen, Zhiqiang. Few-View Prereconstruction Guided Tube Current Modulation Strategy Based on the Signal-to-Noise Ratio of the Sinogram. Computational and Mathematical Methods in Medicine. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1058031
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1058031