Novel C-arm based cone-beam CT using a source trajectory of two concentric arcs

Joseph Zambelli, Brian E. Nett, Shuai Leng, Cyril Riddell, Barry Belanger, Guang Hong Chen

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

8 Citations (Scopus)

Abstract

The first results from an interventional C-arm based computed tomography system where a complete source trajectory was used are presented. A scan with two arcs which are joined approximately at the center of their paths (CC trajectory) is utilized here. This trajectory satisfies Tuy's sufficiency condition for a large volume, but is not well populated with PI-lines. Therefore, a non-PI-line based reconstruction method is required. The desire for high dose efficiency led to the selection of an equal weighting based method. An FBP type reconstruction algorithm which was derived for two orthogonal concentric circles was utilized for reconstruction. The concept of a virtual image object was used to relate the projections from the two acquired non-orthogonal arcs to projections of a virtual object from two orthogonal arcs. Geometrical calibration is vital when performing tomography from an interventional system, and was incorporated here with the use of a homogeneous virtual projection matrix. The results demonstrate a significant reduction in cone-beam artifacts when the complete source trajectory is utilized.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume6510
EditionPART 1
DOIs
StatePublished - 2007
Externally publishedYes
EventMedical Imaging 2007: Physics of Medical Imaging - San Diego, CA, United States
Duration: Feb 18 2007Feb 22 2007

Other

OtherMedical Imaging 2007: Physics of Medical Imaging
CountryUnited States
CitySan Diego, CA
Period2/18/072/22/07

Fingerprint

Cones
Trajectories
Tomography
Calibration

Keywords

  • CT
  • SYS

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Zambelli, J., Nett, B. E., Leng, S., Riddell, C., Belanger, B., & Chen, G. H. (2007). Novel C-arm based cone-beam CT using a source trajectory of two concentric arcs. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (PART 1 ed., Vol. 6510). [65101Q] https://doi.org/10.1117/12.713813

Novel C-arm based cone-beam CT using a source trajectory of two concentric arcs. / Zambelli, Joseph; Nett, Brian E.; Leng, Shuai; Riddell, Cyril; Belanger, Barry; Chen, Guang Hong.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6510 PART 1. ed. 2007. 65101Q.

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

Zambelli, J, Nett, BE, Leng, S, Riddell, C, Belanger, B & Chen, GH 2007, Novel C-arm based cone-beam CT using a source trajectory of two concentric arcs. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. PART 1 edn, vol. 6510, 65101Q, Medical Imaging 2007: Physics of Medical Imaging, San Diego, CA, United States, 2/18/07. https://doi.org/10.1117/12.713813
Zambelli J, Nett BE, Leng S, Riddell C, Belanger B, Chen GH. Novel C-arm based cone-beam CT using a source trajectory of two concentric arcs. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. PART 1 ed. Vol. 6510. 2007. 65101Q https://doi.org/10.1117/12.713813
Zambelli, Joseph ; Nett, Brian E. ; Leng, Shuai ; Riddell, Cyril ; Belanger, Barry ; Chen, Guang Hong. / Novel C-arm based cone-beam CT using a source trajectory of two concentric arcs. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6510 PART 1. ed. 2007.
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