Impact of scattered radiation on spectral CT

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

Volumn 7258, Issue , 2009, Pages

  Wiegert, Jens ^a   Engel, Klaus Jürgen ^a   Herrmann, Christoph ^a  

^a PHILIPS RESEARCH LABORATORIES   (Germany)

Author keywords

Anti scatter grids; Computed tomography; K edge imaging; Monte Carlo simulations; Scatter spectrum; Scatter to primary ratio; Single and multiple scatter; Spectral CT; Spectral decomposition; X ray scatter

Indexed keywords

DETERIORATION; INTELLIGENT SYSTEMS; MEDICAL IMAGING; MONTE CARLO METHODS; RADIATION; X RAY SCATTERING;

ANTI-SCATTER GRIDS; ATTENUATION LINE INTEGRALS; K-EDGE IMAGING; MATERIAL COMPOSITIONS; PHOTON COUNTING DETECTORS; SCATTER-TO-PRIMARY RATIO; SIGNIFICANT DETERIORATIONS; SPECTRAL DECOMPOSITION;

COMPUTERIZED TOMOGRAPHY;

EID: 66749083954     PISSN: 16057422     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.813674     Document Type: Conference Paper

References (18)

1. Alvarez, R. and Macovski, A., "Energy-selective reconstructions in X-ray computerized tomography.," Phys Med Biol 21, 733-744 (Sep 1976).
2. Riederer, S. J. and Mistretta, C. A., "Selective iodine imaging using k-edge energies in computerized x-ray tomography.," Med Phys 4(6), 474-481 (1977).
3. Roessl, E. and Proksa, R., "K-edge imaging in x-ray computed tomography using multi-bin photon counting detectors.," Phys Med Biol 52, 4679-4696 (Aug 2007)
4. Kalender, W. A., Perman, W. H., Vetter, J. R., and Klotz, E., "Evaluation of a prototype dual-energy computed tomographic apparatus. i. phantom studies.," Med Phys 13(3), 334-339 (1986).
5. Engel, K. J., Bäumer, C., Wiegert, J., and Zeitler, G., "Spectral analysis of scattered radiation in CT," in [Medical Imaging 2008: Physics of Medical Imaging], Hsieh, J. and Samei, E., eds., 6913(1), 69131R, SPIE, San Diego, CA, USA (2008).
6. Schneider, S. M., Schlomka, J.-P., and Harding, G. L., "Coherent-scatter computed tomography applying a fan-beam geometry," in [Medical Imaging 2001: Physics of Medical Imaging], Antonuk, L. E. and Yaffe, M. J., ed., 4320(1), 754-763, SPIE (2001).
7. Wiegert, J., Bertram, M., Schaefer, D., Conrads, N., Timmer, J., Aach, T., and Rose, G., "Performance of standard fluoroscopy antiscatter grids in flat-detector-based cone-beam CT," in [Medical Imaging 2004: Physics of Medical Imaging], Yaffe, M. J. and Flynn, M. J., eds., 5368(1), 67-78, SPIE, San Diego, CA, USA (2004).
8. Hubbell et al., J. H., "Atomic form factors, incoherent scattering functions, and photon scattering cross sections," J. Phys. Chem. Ref. Data Vol. 4(3), 471-538 (1975).
9. Hubbell et al., J. H., "Atomic form factors, incoherent scattering functions, and photon scattering cross sections," J. Phys. Chem. Ref. Data Vol.4(3), 471-538 (1975). Errata, J. Phys. Chem. Ref. Data, Vol.6(2), p. 615f, 1977.
10. Berger, M., Hubbell, J., Seltzer, S., Coursey, J., and Zucker, D., "Xcom: Photon cross section database (version 1.0)." http://physics.nist.gov/xcom. National Institute of Standards and Technology, Gaithersburg, MD. (1998).
11. Braunstein, D., Carmi, R., Kleinman, M., Elgaly, A., Uman, I., and Altman, A., "Bi-directional anti-scatter grid for a wide axial coverage ct," in [IEEE MIC], (2006).
12. Vogtmeier, G., Dorscheid, R., Engel, K. J., Luhta, R., Mattson, R., Harwood, B., Appleby, M., Randolph, B., and Klinger, J., "Two-dimensional anti-scatter grids for computed tomography detectors," in [Medical Imaging 2008: Physics of Medical Imaging], Hsieh, J. and Samei, E., eds., 6913(1), 691359, SPIE, San Diego, CA, USA (2008).
13. Wiegert, J. and Bertram, M., "Scattered radiation in flat-detector based cone-beam CT: analysis of voxelized patient simulations," in [Medical Imaging 2006: Physics of Medical Imaging], Flynn, M. J. and Hsieh, J., eds., 6142(1), 6142-7113, SPIE (2006).
14. Compton, A., "A quantum theory of the scattering of x-rays by light elements," Phys. Rev. 21, 483-502 (1923).
15. Klein, O. and Nishina, T., "Über die streuung von strahlung durch freie elektronen nach der neuen relativistischen quantendynamik von dirac," Zeitschrift fuer Physik A 52, 853 (1929).
16. Glover, G., "Compton scatter effects in CT reconstructions.," Med Phys 9(6), 860-867 (1982).
17. Johns, P. and Yaffe, M., "Scattered radiation in fan beam imaging systems.," Med Phys 9(2), 231-239 (1982).
18. Wiegert, J., Scattered radiation in cone-beam computed tomography: analysis, quantification and compensation, PhD thesis, RWTH Aachen University, http://darwin.bth.rwth-aachen.de/opus3/volltexte/2007/1896/ (2007).