CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Prev
Next
|
|
|
Scattering correction method for panel detector based cone beam computed tomography system |
Jia Peng-Xiang(贾鹏翔)a), Zhang Feng(张峰)b), Yan Bin(闫镔)b), and Bao Shang-Lian (包尚联)a)† |
a Beijing City Key Lab of Medical Physics and Engineering, Peking University, Beijing 100871, China; b China National Digital Switching System Engineering and Technological Research Center, Zhengzhou 450002, China |
|
|
Abstract A scattering correction method for a panel detector based cone beam computed tomography system is presented. First, the x-ray spectrum of the system is acquired by using the Monte Carlo simulation method. Secondly, scattered photon distribution is calculated and stored as correction matrixes by using the Monte Carlo simulation method according to scanned objects and computed tomography system specialties. Thirdly, scattered photons are removed from projection data by correction matrixes. A comparison of reconstruction image between before and after scattering correction demonstrates that the scattering correction method is effective for the panel detector based cone beam computed tomography system.
|
Received: 28 February 2010
Revised: 21 April 2010
Accepted manuscript online:
|
PACS:
|
87.59.bd
|
(Computed radiography)
|
|
02.50.Ng
|
(Distribution theory and Monte Carlo studies)
|
|
87.57.C-
|
(Image quality)
|
|
87.57.N-
|
(Image analysis)
|
|
87.63.-d
|
(Non-ionizing radiation equipment and techniques)
|
|
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 60672104 and 10527003), the National Basic Research Program of China (Grant No. 2006CB705705) and the Joint Research Foundation of Beijing Education Committee, China (Grant No. JD100010607). |
Cite this article:
Jia Peng-Xiang(贾鹏翔), Zhang Feng(张峰), Yan Bin(闫镔), and Bao Shang-Lian (包尚联) Scattering correction method for panel detector based cone beam computed tomography system 2010 Chin. Phys. B 19 087802
|
[1] |
Rinkel J, Gerfault L, Esteve F and Dinten J M 2007 Phys. Med. Biol. 52 4633
|
[2] |
Siewerdsen J and Jeffray D 2001 Med. Phys. 28 220
|
[3] |
Zhu L, Bennett N R and Fahrig R 2006 IEEE Transactions on Medical Imaging 25 1573
|
[4] |
Ning R and Tang X 2004 Med. Phys. 31 1195
|
[5] |
Neitzel U 1992 Med. Phys. 19 475
|
[6] |
Lo J Y, Floyd C E, Baker J A and Ravin C E 1994 Med. Phys. 21 435
|
[7] |
Naimuddin S, Hasegawa B and Mistretta C A 1987 Med. Phys. 14 330
|
[8] |
Seibert J A and Boone J M 1988 Med. Phys. 15 567
|
[9] |
Wiegert J, Bertram M, Rose G and Aach T 2005 Proc. SPIE 5745 271
|
[10] |
Jarry G, Graham S A and Moseley D J 2006 Med. Phys. 33 4320
|
[11] |
Kriakou Y, Deak P, Riedel T, Smekall L V and Kalender W A 2005 Eur. Radiol. 15 306
|
[12] |
Watanabe M, Yamada R, Watanabe M, Gao F and Liu H F 2009 Chin. Phys. B 18 3066
|
[13] |
Siewerdsen J H, Daly M J, Bakhtiar B, Richard S, Keller H and Jaffray D A 2006 Med. Phys. 33 187
|
[14] |
Salvat F, Fernandez-Varea J M and Sempau J 2006 wxPENELOPE-2006: a code system for Monte Carlo simulation of electron and photon transport (Spain: Workshop Proceedings) p. 2
|
[15] |
Xu H B, Peng X K and Chen C B 2010 Chin. Phys. B 19 062901
|
[16] |
Zhang T, Liu Y B, Yang B, Wu H X and Gu J H 2009 Chin. Phys. B 18 2217
|
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|