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Unsupervised reconstruction for ungated ghost angiography by clustering of image features

Tsaftaris, Sotirios A. and Offerman, Erik and Edelman, Robert R. and Koktzoglou, Ioannis Unsupervised reconstruction for ungated ghost angiography by clustering of image features. In: 18th Meeting of the international society for magnetic resonance in medicine, 1-7 May 2010, Stockholm, Sweden (Unpublished) (2010)

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Ghost magnetic resonance angiography (MRA) has been proposed as an unenhanced and ungated method for angiography that is based on the presence of ghost artifacts resulting from pulsatile blood flow (1). Although the method is simple to acquire in that cardiac gating is not required, it requires manual post-processing to identify suitable slices in a large stack from which to create an interpretable angiogram. To maximize the contrast of the final angiogram it is necessary to eliminate slices located within the body and to carefully select the slices that contain conspicuous ghost artifacts. This manual post-processing step is time-consuming and can introduce unwanted inter- and intra- observer variability. The purpose of this work was to completely automate the reconstruction process during ungated and non-contrast-enhanced Ghost MRA using image analysis and clustering.

Item Type: Conference or Workshop Item (Poster)
Subjects: Q Science > QA Mathematics > QA76 Computer software
R Medicine > RC Internal medicine
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Research Area: Computer Science and Applications
Depositing User: Users 35 not found.
Date Deposited: 08 Sep 2011 12:09
Last Modified: 05 Mar 2013 15:38
URI: http://eprints.imtlucca.it/id/eprint/843

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