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DOI: 10.4103/0971-3026.134379
PET reconstruction artifact can be minimized by using sinogram correction and filtered back-projection technique
Abstract
Filtered Back-Projection (FBP) has become an outdated image reconstruction technique in new-generation positron emission tomography (PET)/computed tomography (CT) scanners. Iterative reconstruction used in all new-generation PET scanners is a much improved reconstruction technique. Though a well-calibrated PET system can only be used for clinical imaging in few situations like ours, when compromised PET scanner with one PET module bypassed was used for PET acquisition, FBP with sinogram correction proved to be a better reconstruction technique to minimize streak artifact present in the image reconstructed by the iterative technique.
Keywords
Filtered back‑projection - iterative reconstruction - sinogram correction - sinogram repair - streak artifactPublikationsverlauf
Artikel online veröffentlicht:
02. August 2021
© 2014. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).
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References
- 1 Kinahan PE, Townsend DW, Beyer T, Sashin D. Attenuation correction for a combined 3D PET/CT scanner. Med Phys 1998;25:2046-53.
- 2 Burger C, Goerres G, Schoenes S, Buck A, Lonn AH, Von Schulthess GK. PET attenuation coefficients from CT images: Experimental evaluation of the transformation of CT into PET 511-keV attenuation coefficients. Eur J Nucl Med Mol Imaging 2002;29:922-7.
- 3 Kamel EM, Burger C, Buck A, von Schulthess GK, Goerres GW. Impact of metallic dental implants on CT-based attenuation correction in a combined PET/CT scanner. Eur Radiol 2003;13:724-8.
- 4 Sureshbabu W, Mawlawi O. PET/CT Imaging Artifacts. J Nucl Med Technol 2005;33:156-61.
- 5 Mawlawi O, Pan T, Cody DD, et al. Evaluation of a new CT truncation correction algorithm for accurate quantification of PET/CT images. J Nucl Med 2004;45(suppl):413P.
- 6 Basu S, Bresler Y. O (N 2log2 N) filtered backprojection reconstruction algorithm for tomography. IEEE Trans Image Process 2000;9:1760-72.
- 7 Herman GT, Odhner D. Performance evaluation of an iterative image reconstruction algorithm for positron emission tomography. IEEE Trans Med Imaging 1991;10:336-46.
- 8 Elhami E, Samiee M, Demeter S, Leslie WD, Goertzen AL. On the significance of defective block detectors in clinical (18) F-FDG PET/CT imaging. Mol Imaging Biol 2011;13:265-74.
- 9 Zito F, De Bernardi E, Schiavini M, Canzi C, Voltini F, Agosteo S, et al. Analysis of different detector and electronics defects on F18-FDG images. Nucl Instrum Meth A 2007;571:493-7.
- 10 Buchert R, Bohuslavizki KH, Mester J, Clausen M. Quality assurance in PET: Evaluation of the clinical relevance of detector defects. J Nucl Med 199;40:1657-65.
- 11 Edhoim PR, Lewitt RM, Lindholm B. Novel properties of the Fourier decomposition of the sinogram. Proc Soc Photo Opt Instrum Eng 1986;671:8-18.
- 12 Karp JS, Muehllehner G, Lewiti RM. Constrained Fourier space method for compensation of missing data in emission computed tomography. IEEE Trans Med Imaging 1988;7:21-25.