Constriction of cone-beam artifacts by the Z-smart reconstruction method

Dennerlein F, Noo F, Härer W, Hornegger J, Lauritsch G (2007)

Publication Type: Conference contribution, Conference Contribution

Publication year: 2007

Journal

IEEE Nuclear Science Symposium Conference Record

Original Authors: Dennerlein F., Noo F., Häier W., Hornegger J., Lauritsch G.

Book Volume: 6

Pages Range: 4090-4096

Event location: Honolulu, HI

Journal Issue: null

DOI: 10.1109/NSSMIC.2007.4437024

Abstract

We introduce a novel approach for 3D image reconstruction from CB data acquired along a full circular trajectory. Our approach, which we refer to as the Z-smart reconstruction method, follows the scheme of 1D filtering and 3D backprojection, while providing flexibility in the choice of the filtering directions. This flexibility allows us to modify the appearance of CB artifacts in the reconstruction results, so that, for certain imaging tasks, the Z-smart method can yield image quality that is significantly superior to that achievable with most other reconstruction algorithms for the full-scan circular trajectory. In particular, when imaging objects that have strong but localized heterogeneities in the axial direction, the Z-smart method can outperform both, the popular filtered-backprojection approach of Feldkamp et al., and also ART, i.e. a fully 3D iterative reconstruction method. We provide a numerical evaluation of our algorithm using simulated CB data of an analytically defined tube phantom, with and without added noise. © 2007 IEEE.

Authors with CRIS profile

Joachim Hornegger Lehrstuhl für Informatik 14 (Bild- und Sprachverarbeitung)

Involved external institutions

University of Utah US United States (USA) (US) Siemens AG, Healthcare Sector DE Germany (DE)

How to cite

APA:

Dennerlein, F., Noo, F., Härer, W., Hornegger, J., & Lauritsch, G. (2007). Constriction of cone-beam artifacts by the Z-smart reconstruction method. In Proceedings of the 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC (pp. 4090-4096). Honolulu, HI.

MLA:

Dennerlein, Frank, et al. "Constriction of cone-beam artifacts by the Z-smart reconstruction method." Proceedings of the 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC, Honolulu, HI 2007. 4090-4096.

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