A correction method for nonlinear artifacts in CT imaging

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

Volumn 26 II, Issue , 2004, Pages 1290-1293

  Sun, Haining ^a   Qiu, Shaokun ^b   Lou, Shanshan ^b   Liu, Jinjun ^b   Li, Changjun ^a   Jiang, Genmiao ^b  

^a NORTHEASTERN UNIVERSITY   (China)

^b Philips and Neusoft Medical Systems Co Ltd   (China)

Author keywords

Beam hardening correction; Nonlinear artifacts correction; Rings artifacts correction; X ray spectrum

Indexed keywords

ALGORITHMS; IMAGE QUALITY; ITERATIVE METHODS; MEDICAL IMAGING; PATIENT MONITORING; POLYNOMIALS; TISSUE;

BEAM HARDENING CORRECTION; NONLINEAR ARTIFACTS CORRECTION; RINGS ARTIFACTS CORRECTION; X RAY SPECTRUM;

COMPUTERIZED TOMOGRAPHY;

EID: 11144277372     PISSN: 05891019     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (9)

1. J.Hsieh, "Computed Tomography: Principles, Design, Artifacts, and Recent Advances "SPIE Press, pp.167-238, 2002.
2. G.T.Herman, "Correction for Beam Hardening in Computed Tomography," Phys. Med. Biol., vol.24, no.1, pp.81-106, 1979.
3. P.K.Kijewski and B.E.Bjamgard, "Correction for beam hardening in computed tomography," Med. Phys., vol.5, no.3, pp.209-214, 1978.
4. C. H. Yan and R.T. Whalen, "Modeling of polychromatic attenuation using computed tomography reconstructed images," Med.Phys., vol.26, no.4, pp.631-642, 1999.
5. P.M.Joseph and C.Ruth, "A method for simultaneous correction of spectrum hardening artifacts in CT images containing both bone and iodine, " Med.Phys., vol.24, no.10., pp.1629-1634, 1997.
6. R.Raupach, "Method for correcting for beam hardening in a CT image," U.S. Patent 6,600,801, Jul.29, 2003.
7. C.Ruth and P.M.Joseph, "Estimation of a photon energy spectrum for a computed tomography scanner," Med.Phys., vol.24, no.5, pp.695-702, 1997.
8. C.H.Yan and R.T.Whalen, "Reconstruction algorithm for polychromatic CT Imaging: Application to Beam Hardening Correction," IEEE. Trans. Medical Imaging,. vol.19, no.1, pp.1-11, 2000.
9. C.H.Yan, R.T.Whalen, Sandy Napel "Method for beam hardening correction in quantitative computed x-ray tomography," U.S. Patent 6,324,240, Nov.27, 2001.