Pitfalls in point-spread-function measurement of computed tomographic system by microphantom reconstruction

Optical Engineering

Volumn 44, Issue 1, 2005, Pages 1-8

  Chen, Zikuan ^a   Ning, Ruola ^a  

^a UNIVERSITY OF ROCHESTER   (United States)

Author keywords

Aperture effect; Computed tomography; Edge spread function; Point spread function; X ray imaging

Indexed keywords

ALGORITHMS; COMPUTERIZED TOMOGRAPHY; IMAGE RECONSTRUCTION; ITERATIVE METHODS; OPTICAL TRANSFER FUNCTION;

APERTURE EFFECT; EDGE SPREAD FUNCTION; MICROPHANTOM; X RAY IMAGING;

IMAGING SYSTEMS;

EID: 14544287743     PISSN: 00913286     EISSN: None     Source Type: Journal    
DOI: 10.1117/1.1827610     Document Type: Article

References (15)

1. G. Wang, T. H. Lin, P. C. Cheng, and D. M. Shinozaki, "Point spread function of the general cone-beam x-ray reconstruction formula," Scanning 14, 187-1983 (1992).
2. Z. Chen and R. Ning, "Three-dimensional point spread function measurement of cone-beam CT system by iterative edge-blurring algorithm," Phys. Med. Biol. 49, 1865-1880 (2004).
3. J. Lehr, J. B. Sibarita, and J. M. Chassery, "Image restoration in x-ray microscopy: PSF determination and biological applications," IEEE Trans. Image Process. 7(2), 258-263 (1998).
4. E. L. Nicholoff and R. Richard, "A simplified approach for modulation transfer function determinations in computed tomography," Med. Phys. 12 (4), 437-443 (1985).
5. E. L. Nicholorff, "Measurement of the PSF for a CT scanner: appropriate wire diameter and pixel size," Phys. Med. Biol. 33(1), 149-155 (1988).
6. I. A. Cunningham and A. Fenster, "A method for modulation transfer function determination from edge profiles with correction for finite element differentiation," Med. Phys. 14, 533-537 (1987).
7. "Phantom for performance evaluation and quality assurance of CT scanner," Report 1, AAPM, New York (1977).
8. Z. Chen, M. Karim, and M. Hayat, "Elimination of higher order aliasings by multiple interlaced sampling," Opt. Eng. 38(5), 879-885 (1999).
9. Z. Chen, M. Karim, and M. Hayat, "Effects of band-pass sampling on joint transform correlation," Opt. Eng. 38(5), 886-892 (1999).
10. G. Dougherty, "Effect of sub-pixel misregistration on the determination of the point spread function of a CT imaging system," Med. Eng. Phys. 22, 503-507 (2000).
11. Z. Chen and R. Ning, "Why should breast tumor detection go three-dimensional," Phys. Med. Biol. 48, 2217-2228 (2003).
12. J. M. Boone and J. A. Seibert, "An analytic edge spread function model for computer fitting and subsequent calculation of the LSF and MTF," Med. Phys. 21(10), 1541-1545 (1994).
13. S. M. Bentzen, "Evaluation of the spatial resolution of a CT scanner by direct analysis of the edge response function," Med. Phys. 10 5), 579-581 (1983).
14. Z. Chen and S. Molloi, "Vessel diameter estimation in x-ray angiographic images using watergauge algorithm," J. Electron. Imaging 12(4), 724-742 (2003).
15. R. Ning, B. Chen, R. Yu, D. Conover, X. Tang, and Y. Ning, "Flat panel detector-based cone-beam volume CT angiography imaging: System evaluation," IEEE Trans. Med. Imaging 19, 949-963 (2000).