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  Automatic Reference Selection Method for Unsupervised Artery/Vein Separation in Time-Resolved Contrast-Enhanced Magnetic Resonance Angiography

Santini, F., Wetzel, S., & Scheffler, K. (2007). Automatic Reference Selection Method for Unsupervised Artery/Vein Separation in Time-Resolved Contrast-Enhanced Magnetic Resonance Angiography. Poster presented at 2007 Joint Annual Meeting ISMRM-ESMRMB, Berlin, Germany.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-051C-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-051D-7
Genre: Poster

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Santini, F, Author
Wetzel, SG, Author
Scheffler, K1, Author              
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1External Organizations, ou_persistent22              

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 Abstract: Identification of reference points or reference time behaviors is a crucial issue in artery/vein separation algorithms, because it is both time consuming and a possible source of uncertainties. For this study, three-dimensional datasets are acquired during the first pass of a contrast agent bolus; the time courses of the brightnesses of all voxels are separated into clusters by a modified k-means algorithm, and center points of the clusters (centroids) are automatically selected as reference time courses for a subsequent artery/vein separation algorithm. In all considered datasets, reference were correctly identified and correct artery/vein separation could be performed.

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 Dates: 2007-05
 Publication Status: Published in print
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Title: 2007 Joint Annual Meeting ISMRM-ESMRMB
Place of Event: Berlin, Germany
Start-/End Date: 2007-05-19 - 2007-05-25

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Title: 2007 Joint Annual Meeting ISMRM-ESMRMB
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 3156 Start / End Page: 608 Identifier: -