Document Type
Conference Proceeding
Language
eng
Format of Original
4 p.
Publication Date
2002
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Source Publication
Proceedings of the IEEE International Symposium on Biomedical Imaging, Washington, D.C., July 7-10, 2002
Source ISSN
0-7803-7584-X
Abstract
A cone beam micro-CT system is set up to collect truncated helical cone beam data. This system includes a micro-focal X-ray source, a precision computer-controlled X-Y-Z-theta stage, and an image-intensifier coupled to a large format CCD detector. The helical scanning mode is implemented by rotating and translating the stage while keeping X-ray source and detector stationary. A chunk of bone and a mouse leg are scanned and quasi-exact reconstruction is performed using the approach proposed in J. Hu et al. (2001). This approach introduced the original idea of accessory paths with upper and lower virtual detectors having infinite axial extent. It has a filtered backprojection structure which is desirable in practice and possesses the advantages of being simple to implement and computationally efficient compared to other quasi-exact helical cone beam algorithms for the long object problem.
Recommended Citation
Hu, Jicun; Molthen, Robert C.; Johnson, Roger; Haworth, Steven; and Dawson, Christopher, "Quasi-Exact Helical Cone Beam Reconstruction for Micro CT" (2002). Biomedical Engineering Faculty Research and Publications. 376.
https://epublications.marquette.edu/bioengin_fac/376
Comments
Accepted version. Published as part of the Proceedings of the IEEE International Symposium on Biomedical Imaging, Washington, D.C., July 7-10, 2002, (2002): 681 - 684. DOI. © 2002 Institute of Electrical and Electronics Engineers (IEEE). Used with permission.