A New Cone-Beam X-Ray CT System with a Reduced Size Planar Detector

LI Liang; CHEN Zhi-Qiang; ZHANG Li; XING Yu-Xiang; KANG Ke-Jun

Chinese Physics C> 2006, Vol. 30> Issue(8) : 812-817

A New Cone-Beam X-Ray CT System with a Reduced Size Planar Detector

Department of Engineering Physics, Tsinghua University, Beijing 100084, China

Abstract
HTML
Reference
Related

PDF

Abstract：
In a traditional cone-beam CT system, the cost of product and computation is very high. In this paper, we propose a transversely truncated cone-beam X-ray CT system with a reduced size detector positioned off-center, in which X-ray beams only cover half of the object. The reduced detector size cuts the cost and the X-ray dose of the CT system. The existing CT reconstruction algorithms are not directly applicable in this new CT system. Hence, we develop a BPF-type direct backprojection algorithm. Different from the traditional rebinning methods, our algorithm directly backprojects the pretreated projection data without rebinning. This makes the algorithm compact and computationally more efficient. Finally, some numerical simulations and practical experiments are done to validate the proposed algorithm.

References

[1]

. Feldkamp L A, Davis L C, Kress J W. J. Opt. Soc. Am.,1984, A1: 612-6192. Noo F, Defrise M, Clackdoyle R et al. Phys. Med. Bio.,2002, 47: 2525-25463. Kudo H, Noo F, Defrise M et al. Proc. IEEE NSS/MIC.,2002, 902-9064. Parker D L. Med. Phys., 1982, 9(2): 254-2575. ZOU Y, PAN X. Phys. Med. Bio., 2004, 49: 941-9596. ZOU Y, PAN X. Phys. Med. Biol., 2004, 49: 2717-27317. PAN X, XIA D, ZOU Y et al. Phys. Med. Biol., 2004, 49:4349-43698. Noo F, Clackdoyle R, Pack J D. Phys. Med. Bio., 2004, 49:3903-39239. Shepp L A, Logan B F. IEEE Trans. Nucl. Sci., 1974, NS-21: 21-4310. LENG S, ZHUANG T, Nett B E et al. Phys. Med. Biol.,2005, 50: 1805-182011. ZHUANG T, LENG S, Nett B E et al. Phys. Med. Biol.,2004, 49: 5489-5503

[1]	ZHAO Qiang , TIAN Yi , LIU Hua-Feng . Development of a New γ-Ray Detector for PEM Applications. Chinese Physics C, 2007, 31(5): 506-508.
[2]	DENG Zi-Yan , CAO Guo-Fu , FU Cheng-Dong , HE Miao , LIU Huai-Min , MAO Ya-Jun , XIA Yu , YOU Zheng-Yun , YUAN Ye , TANG Rui , LIU Ying-Jie , MA Qiu-Mei , MA Xiang , , , , . Object-Oriented BESⅢ Detector Simulation System. Chinese Physics C, 2006, 30(5): 371-377.
[3]	WU Zhen , LI Jun-Li , CHENG Jian-Ping . An Improved Correlated Sampling Method Calculating Correction Factor of Detector. Chinese Physics C, 2006, 30(8): 771-775.
[4]	XU Tie-Zheng , XIE Yu-Tong , GAO Feng , DAI Wen-Hua , GU Zhan-Jun , WANG Li-Ming , WANG Hua-Cen , LI Jing . Research on New BPM Used to “Dragon Ⅰ”. Chinese Physics C, 2006, 30(9): 907-911.
[5]	WANG Fa-Ya . Design of Accelerating Structure on a Novel Compact Electron Linac. Chinese Physics C, 2004, 28(10): 1109-1115.
[6]	DAI Chang-Jiang , HE Hui-Lin , YE Zi-Piao , SHENG Xiang-Dong . Development of a New Detector for Solar Neutrino Detection. Chinese Physics C, 2004, 28(5): 526-531.
[7]	ZHANG Ming-Long , XIA Yi-Ben , WANG Lin-Jun , ZHANG Wei-Li . A Suitable Material for the Substrate of Micro-Strip Gas Chamber. Chinese Physics C, 2004, 28(4): 408-411.
[8]	ZHAO Feng-Li , ZHAO Yan-Ping , LIU Jin-Tong . A New Type of Detuning System of RF Compressors (SLED). Chinese Physics C, 2004, 28(11): 1227-1230.
[9]	ZHAO Xiao-Yan , ZHENG Jian-Hua , WANG Yi-Fang , ZHAO Zhi-Zheng , ZU Kai-Ling . A New Detecting System of the Beam Profile. Chinese Physics C, 2004, 28(11): 1184-1187.
[10]	HU Meng-Chun , YE Wen-Ying , PENG Tai-Ping , ZHOU Dian-Zhong , WANG Zhen-Tong , ZHANG Jian-Hua , HU Qing-Yuan , YANG Hong-Qiong . A Large Dynamic Range Gamma Radiation Detector Insensitive to Neutron Radiation. Chinese Physics C, 2003, 27(4): 354-358.
[11]	SHENG Xiang-Dong , DAI Chang-Jiang , HE Hui-Lin . Experimental Research on the New. Chinese Physics C, 2002, 26(3): 273-278.
[12]	WAN Jun-Sheng , PAN Xiao-Bing , ZHAO Zhu-Min , CHEN Li-Xin , JING Chun-Yuan , WANG Dao-Hua . Theoretical Studies on the New System of Neutron Flux Measurement in the Nuclear Reactor. Chinese Physics C, 2002, 26(10): 1027-1035.
[13]	CHEN Hong-Fang , LI Cheng , WANG Xiao-Lian , SHAO Ming , XU Zi-Zong , WANG Zhao-Min , HUANG Sheng-Li , RUAN Li-Juan , YE Shu-Wei , WU Jian , ZHANG Zi-Ping , ZENG Hui . A New Type Time Measurement Detector──Multigap Resistive Plate Chamber. Chinese Physics C, 2002, 26(3): 201-206.
[14]	Le Yi , Li Cheng , Chen Hongfang , Zhang Yongming , Wang Xiaolian , Wang Ligang , Shao Chuanfen , Shi Changxin . Properties of a New Kind of MSM Structure Gallium Arsenide Detectors. Chinese Physics C, 1998, 22(12): 1092-1099.
[15]	Li Fengtian , Xie Jialin , Wang Yanshan , Wang Bosi . A Novel Control System for RF Power System of LINAC. Chinese Physics C, 1998, 22(10): 932-936.
[16]	Guo Zhongyan , Zhan Wenlong , Xi Hongfei , Zhou Jianqun , Zhao Youxiong , Feng Enpu , Wang Jinchuan , Luo Yongfeng , Let Huaihong . High Performance Detector System of TR4 Sited at HIRFL. Chinese Physics C, 1995, 19(10): 865-872.
[17]	XU Jian-Ming , XU Qing . ANALYSIS OF THE PERFORMANCE OF A NEW TYPE OF LINEAR PERIODIC MAGNETS. Chinese Physics C, 1988, 12(4): 513-520.
[18]	LI Jin , JIANG Chun-Hua . A NEW CYLINDRICAL LIGHT GUIDE. Chinese Physics C, 1984, 8(1): 122-124.
[19]	ZHANG Gui-Shan , ZHANG Huan-Qiao . MONTE CARLO CALCULATION OF THE EFFICIENCIES OF THE LEAD GLASS DETECTORS FOR HIGH-ENERGY GAMMA RAYS. Chinese Physics C, 1983, 7(3): 370-378.
[20]	ZHAI Peng-JI , KANG TIE-SHENG , ZHANG ZHI-YAO . . Chinese Physics C, 1983, 7(5): 649-656.

Access

Get Citation

LI Liang, CHEN Zhi-Qiang, ZHANG Li, XING Yu-Xiang and KANG Ke-Jun. A New Cone-Beam X-Ray CT System with a Reduced Size Planar Detector[J]. Chinese Physics C, 2006, 30(8): 812-817.

LI Liang, CHEN Zhi-Qiang, ZHANG Li, XING Yu-Xiang and KANG Ke-Jun. A New Cone-Beam X-Ray CT System with a Reduced Size Planar Detector[J]. Chinese Physics C, 2006, 30(8): 812-817. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-02-16
Revised: 2006-03-02

Article Metric

Article Views(4405)
PDF Downloads(855)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

A New Cone-Beam X-Ray CT System with a Reduced Size Planar Detector

Corresponding author: LI Liang,

Department of Engineering Physics, Tsinghua University, Beijing 100084, China

Received Date: 2006-02-16
Accepted Date: 2006-03-02
Available Online: 2006-08-05

Abstract: In a traditional cone-beam CT system, the cost of product and computation is very high. In this paper, we propose a transversely truncated cone-beam X-ray CT system with a reduced size detector positioned off-center, in which X-ray beams only cover half of the object. The reduced detector size cuts the cost and the X-ray dose of the CT system. The existing CT reconstruction algorithms are not directly applicable in this new CT system. Hence, we develop a BPF-type direct backprojection algorithm. Different from the traditional rebinning methods, our algorithm directly backprojects the pretreated projection data without rebinning. This makes the algorithm compact and computationally more efficient. Finally, some numerical simulations and practical experiments are done to validate the proposed algorithm.