Backprojection-filtration reconstruction for helical cone-beam CT with curved detectors

Nianming Zuo, Dan Xia, Emil Y. Sidky, Lifeng Yu, Yu Zou, Xiaochuan Pan, Tianzi Jiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Helical CT scanners with multi-row detectors have gained wide popularity in clinics. With increasing interest in extending the number of detector rows, the cone angle must be accounted for in image reconstruction algorithms. As the cone angle increases, artifacts in reconstructed images caused by approximate algorithms, such as the widely used FDK-based algorithms [1], become more of a factor that degrades the image quality. Recently, a novel reconstruction algorithm for helical cone-beam CT (CB-CT) has been proposed [2], [3], which is referred to as the backprojection-filtration algorithm. This algorithm requires theoretically minimum data to reconstruct a volume image. The original BPF algorithm was presented by assuming a flat-panel detector. However, most current multi-row detectors employed in clinic CT scanners are curved detectors. In this work, we modify the backprojection-filtration (BPF) algorithm to allow for reconstruction from data collected with a curved detector. We perform simulation studies using the Shepp-Logan phantom to evaluate the modified BPF algorithm.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposium Conference Record
Pages2306-2309
Number of pages4
Volume4
DOIs
StatePublished - 2005
Externally publishedYes
EventNuclear Science Symposium Conference Record, 2005 IEEE - , Puerto Rico
Duration: Oct 23 2005Oct 29 2005

Other

OtherNuclear Science Symposium Conference Record, 2005 IEEE
CountryPuerto Rico
Period10/23/0510/29/05

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Cones
Detectors
Image reconstruction
Image quality

Keywords

  • Backprojection-filtration
  • Computed tomography (CT)
  • Curved detector
  • Image reconstruction

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

Cite this

Zuo, N., Xia, D., Sidky, E. Y., Yu, L., Zou, Y., Pan, X., & Jiang, T. (2005). Backprojection-filtration reconstruction for helical cone-beam CT with curved detectors. In IEEE Nuclear Science Symposium Conference Record (Vol. 4, pp. 2306-2309). [1596795] https://doi.org/10.1109/NSSMIC.2005.1596795

Backprojection-filtration reconstruction for helical cone-beam CT with curved detectors. / Zuo, Nianming; Xia, Dan; Sidky, Emil Y.; Yu, Lifeng; Zou, Yu; Pan, Xiaochuan; Jiang, Tianzi.

IEEE Nuclear Science Symposium Conference Record. Vol. 4 2005. p. 2306-2309 1596795.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zuo, N, Xia, D, Sidky, EY, Yu, L, Zou, Y, Pan, X & Jiang, T 2005, Backprojection-filtration reconstruction for helical cone-beam CT with curved detectors. in IEEE Nuclear Science Symposium Conference Record. vol. 4, 1596795, pp. 2306-2309, Nuclear Science Symposium Conference Record, 2005 IEEE, Puerto Rico, 10/23/05. https://doi.org/10.1109/NSSMIC.2005.1596795
Zuo N, Xia D, Sidky EY, Yu L, Zou Y, Pan X et al. Backprojection-filtration reconstruction for helical cone-beam CT with curved detectors. In IEEE Nuclear Science Symposium Conference Record. Vol. 4. 2005. p. 2306-2309. 1596795 https://doi.org/10.1109/NSSMIC.2005.1596795
Zuo, Nianming ; Xia, Dan ; Sidky, Emil Y. ; Yu, Lifeng ; Zou, Yu ; Pan, Xiaochuan ; Jiang, Tianzi. / Backprojection-filtration reconstruction for helical cone-beam CT with curved detectors. IEEE Nuclear Science Symposium Conference Record. Vol. 4 2005. pp. 2306-2309
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