ISSN 1004-4140
CN 11-3017/P
Turn off MathJax
Article Contents
Abstract
References
XIANG R L, ZHANG L. Suppression Method for Cone-Beam CT Artifact Based on FDK Compensation and Dual-Source Weighting[J]. CT Theory and Applications, xxxx, x(x): 1-9. DOI: 10.15953/j.ctta.2024.222. (in Chinese).
Citation: XIANG R L, ZHANG L. Suppression Method for Cone-Beam CT Artifact Based on FDK Compensation and Dual-Source Weighting[J]. CT Theory and Applications, xxxx, x(x): 1-9. DOI: 10.15953/j.ctta.2024.222. (in Chinese).
shu

Suppression Method for Cone-Beam CT Artifact Based on FDK Compensation and Dual-Source Weighting

  • 1.

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

  • 2.

    Key Laboratory of Particle & Radiation Imaging (Tsinghua University), Ministry of Education, Beijing 100084, China

  • 3.

    National Engineering Laboratory for Dangerous Articles and Explosives Detection Technologies, Beijing 100084, China

More Information
  • Received Date: October 14, 2024
  • Revised Date: November 30, 2024
  • Accepted Date: January 07, 2025
  • Available Online: February 17, 2025
    Graphical Abstract
    • Abstract

  • The Feldkamp-Davis-Kress (FDK) algorithm has the advantages of a simple structure, fast calculation speed, and high reconstruction quality, and it remains the mainstream algorithm for cone-beam computed tomography (CBCT) analytical reconstruction. However, if the cone angle for the reconstructed point is too large, the reconstruction exhibits artifacts characterized by an axial density drop. Numerous methods for suppressing this artifact have been proposed, including projection weighting, cone-beam rebinning, and introducing compensation terms. The compensation method has high computational efficiency and achieves good artifact suppression when the cone angle is not more than 16°. However, for cases with larger cone angles, the effectiveness of this algorithm is diminished. Thus, further optimization of the reconstruction algorithms and scanning geometry is required to accommodate industrial and clinical demands. Based on the two compensation terms for FDK reconstruction, this study extends cone-beam CT geometrically to the case of dual source in the z-direction distribution, further suppressing cone-beam artifacts by reducing the average cone angle of the reconstructed points. A cone-angle weighting method is proposed for dual-source reconstruction, to fuse the reconstructed results of the two sources and obtain the final reconstructed image. The simulation results show that the proposed algorithm can improve the quality of the reconstructed image more effectively than single-source case.

    • FullText(HTML)
    • References (21)
  • [1]
    FELDKAMP L A, DAVIS L C, KRESS J W. Practical cone-beam algorithm[J/OL]. Journal of the Optical Society of America. A, Optics, image science, and vision, 1984, 1(6): 612. DOI: 10.1364/JOSAA.1.000612.
    [2]
    TUY H K. An inversion formula for cone-beam reconstruction[J/OL]. SIAM Journal on Applied Mathematics, 1983, 43(3): 546-552. DOI: 10.1137/0143035.
    [3]
    SMITH B D. Image reconstruction from cone-beam projections: Necessary and sufficient conditions and reconstruction methods[J/OL]. IEEE Transactions on Medical Imaging, 1985, 4(1): 14-25. DOI: 10.1109/TMI.1985.4307689.
    [4]
    GRASS M, KöHLER T, PROKSA R. Angular weighted hybrid cone-beam CT reconstruction for circular trajectories[J/OL]. Physics in Medicine & Biology, 2001, 46(6): 1595-1610. DOI: 10.1088/0031-9155/46/6/301.
    [5]
    MORI S, ENDO M, KOMATSU S, et al. A combination-weighted Feldkamp-based reconstruction algorithm for cone-beam CT[J/OL]. Physics in Medicine & Biology, 2006, 51(16): 3953-3965. DOI: 10.1088/0031-9155/51/16/005.
    [6]
    LIU Y, LIU H, WANG Y, et al. Half-scan cone-beam CT fluoroscopy with multiple X-ray sources[J/OL]. Medical physics (Lancaster), 2001, 28(7): 1466-1471. DOI: 10.1118/1.1381549.
    [7]
    杨宏成, 高欣, 张涛. 基于FDK反投影权重的锥束DSA重建算法[J/OL]. 江苏大学学报(自然科学版), 2013, 34(2): 190-195. DOI: 10.3969/j.issn.1671-7775.2013.02.012.
    [8]
    TURBELL H. Cone-Beam Reconstruction Using Filtered Backprojection[D]. ProQuest Dissertations & Theses, 2001.
    [9]
    GRASS M, KöHLER T, PROKSA R. 3D cone-beam CT reconstruction for circular trajectories[J/OL]. Physics in Medicine & Biology, 2000, 45(2): 329-347. DOI: 10.1088/0031-9155/45/2/306.
    [10]
    王琛. 圆轨道锥束滤波反投影重建算法研究[D]. 中国工程物理研究院, 2020. DOI: 10.27498/d.cnki.gzgwy.2020.000073.
    [11]
    LI L, XING Y, CHEN Z, et al. A curve-filtered FDK (C-FDK) reconstruction algorithm for circular cone-beam CT[J]. Journal of X-Ray Science and Technology, 2011, 19(3): 355-371. DOI: 10.3233/XST-2011-0299.
    [12]
    穆子扬, 卢荣胜, 何攀, 等. 基于滤波路径变换的板状物X射线三维重建算法[J]. 光学学报, 2024, 44(9): 312-325.
    [13]
    HU H. An improved cone-beam reconstruction algorithm for the circular orbit[J/OL]. Scanning, 1996, 18(8): 572-581. DOI: 10.1002/sca.4950180807.
    [14]
    ZHU L, STARMAN J, FAHRIG R. An efficient estimation method for reducing the axial intensity drop in circular cone-beam CT[J/OL]. International Journal of Biomedical Imaging, 2008, 2008(1): 242841-242841. DOI: 10.1155/2008/242841.
    [15]
    ZAMBELLI J, NETT B E, LENG S, et al. Novel c-arm based cone-beam CT using a source trajectory of two concentric arcs[C/OL]//Proceedings of SPIE: volume 6510. 2007: 65101Q-65101Q-10. DOI: 10.1117/12.713813.
    [16]
    ZAMYATIN A A, KATSEVICH A, CHIANG B S. Exact image reconstruction for a circle and line trajectory with a gantry tilt[J/OL]. Physics in Medicine & Biology, 2008, 53(23): N423-N435. DOI: 10.1088/0031-9155/53/23/N02.
    [17]
    SCHOMBERG H, VAN DE HAAR P, BAATEN W. Cone-beam CT using a c-arm system as front end and a spherical spiral as source trajectory[C/OL]//Proceedings of SPIE: volume 7258. 2009: 72580F-72580F-12. DOI: 10.1117/12.811545.
    [18]
    张涛. 新型静态CT成像理论与重建算法研究[M]. 北京: 清华大学出版社, 2023.
    [19]
    Grangeat P. Mathematical framework of cone beam 3D reconstruction via the first derivative of the Radon transform[J]. Lecture Notes in Mathematics -Springer-verlag-, 1990, 1497. DOI: 10.1007/bfb0084509.
    [20]
    YANG H Q, LI M H, KOIZUMI K, et al. FBP-type cone-beam reconstruction algorithm with radon space interpolation capabilities for axially truncated data from a circular Orbit[J]. Medical Imaging Technology, 2006, 24(3): 201-208.
    [21]
    PARKER D L. Optimal short scan convolution reconstruction for fanbeam CT[J/OL]. Medical physics (Lancaster), 1982, 9(2): 254-257. DOI: 10.1118/1.595078.
    • Related Articles

  • Cited by

    Periodical cited type(1)

    1. 汤戈，赵欣雨，王宇翔，冯鹏，魏彪. 工业CT技术在地球科学中的应用. CT理论与应用研究. 2024(01): 119-134 . 本站查看

    Other cited types(1)

Catalog

    Get Citation
    PDF
    XML
    Article views (251) PDF downloads (48) Cited by(2)
    Related

    Website Copyright © Editorial Office of Computerized Tomography Theory and Applications

    Address：No.5 Minzudaxue Nanlu,Haidian District,Beijing 100081,P.R.China（100081）

    E-mail：cttacn@cea-igp.ac.cn

    Phone：010-68729234

    京ICP备08002722号-11

    震球期刊
    CT理论与应用研究-中英文
    E-mail
    RSS

    Supported by: Beijing Renhe Information Technology Co. Ltd     Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return