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An interactive application for removal of bone information in CT-angiography

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Maksimov, D. and Finkel Morgenstern, Federico and Dietz, T. and Diehl, S. and Duber, C. and Rebholz, P. and Hesser, J. and Manner, R. (2004) An interactive application for removal of bone information in CT-angiography. In IEEE Symposium on Computer-Based Medical Systems. IEEEComp Soc, pp. 396-401. ISBN 0-7695-2104-5

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Official URL: http://dx.doi.org/10.1109/CBMS.2004.1311746


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Abstract

In this paper we present a method that allows removing bony structures and. calcifications from CT angiography (CTA) data. It relies on two data sets, one with (CA) and one without (NCA) contrast agent. In contrast to current approaches, the algorithm uses local rigid matching of each single object. Therefore, it allows compensating motion of the patient during acquisition. Furthermore, the method uses a highly accurate surface-matching procedure so that local mismatches can be as small as 3 voxels and therefore even arteries near the bone are mostly separated correctly. The overall system requires about 20 minutes on a Pentium 4 2.4 GHz with 1 GByte RAM for a 700 MByte data set (CA+NCA) and is currently used in the clinic for evaluation purposes.


Item Type:Book Section
Additional Information:

©2004 IEEE.
ISSN: 1063-7125
IEEE Symposium on Computer-Based Medical Systems (17. 2004. Bethesda, Maryland)

Uncontrolled Keywords:Live; Wire
Subjects:Sciences > Physics > Physics-Mathematical models
Sciences > Physics > Mathematical physics
ID Code:31382
Deposited On:28 Jul 2015 11:32
Last Modified:10 Dec 2018 15:09

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