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Influence of Rotation Increments on Imaging Performance for a Rotatory Dual-Head PET System
Joint Authors
Cao, Xu
Zhu, Shouping
Meng, Fanzhen
Cao, Xuezhou
Wang, Jianxun
Li, Liang
Liang, Jimin
Chen, Xueli
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-01-05
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
For a rotatory dual-head positron emission tomography (PET) system, how to determine the rotation increments is an open problem.
In this study, we simulated the characteristics of a rotatory dual-head PET system.
The influences of different rotation increments were compared and analyzed.
Based on this simulation, the imaging performance of a prototype system was verified.
A reconstruction flowchart was proposed based on a precalculated system response matrix (SRM).
The SRM made the relationships between the voxels and lines of response (LORs) fixed; therefore, we added the interpolation method into the flowchart.
Five metrics, including spatial resolution, normalized mean squared error (NMSE), peak signal-to-noise ratio (PSNR), contrast-to-noise (CNR), and structure similarity (SSIM), were applied to assess the reconstructed image quality.
The results indicated that the 60° rotation increments with the bilinear interpolation had advantages in resolution, PSNR, NMSE, and SSIM.
In terms of CNR, the 90° rotation increments were better than other increments.
In addition, the reconstructed images of 90° rotation increments were also flatter than that of 60° increments.
Therefore, both the 60° and 90° rotation increments could be used in the real experiments, and which one to choose may depend on the application requirement.
American Psychological Association (APA)
Meng, Fanzhen& Cao, Xu& Cao, Xuezhou& Wang, Jianxun& Li, Liang& Chen, Xueli…[et al.]. 2017. Influence of Rotation Increments on Imaging Performance for a Rotatory Dual-Head PET System. BioMed Research International،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1139189
Modern Language Association (MLA)
Meng, Fanzhen…[et al.]. Influence of Rotation Increments on Imaging Performance for a Rotatory Dual-Head PET System. BioMed Research International No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1139189
American Medical Association (AMA)
Meng, Fanzhen& Cao, Xu& Cao, Xuezhou& Wang, Jianxun& Li, Liang& Chen, Xueli…[et al.]. Influence of Rotation Increments on Imaging Performance for a Rotatory Dual-Head PET System. BioMed Research International. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1139189
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1139189