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Proceedings Paper

Comparison of 3D split-and-merge segmentation with direct MRI determination of cerebral ventricule volume
Author(s): Ioannis N. Manousakas; Peter E. Undrill; Thomas W. Redpath
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Paper Abstract

A true 3D split-and-merge segmentation technique is compared with a direct MRI measurement method for the estimation of ventricular CSF volume. The segmentation algorithm incorporates simulated annealing and boundary elimination and its performance is also compared with slice-based applications of 2D methods. The direct method is corrected for errors due to image non-uniformity. Using a set of volunteer studies the average differences between the two methods was found to be 36%. From this comparison a new source of measurement error in the direct method, caused by the inclusion of non-ventricular CSF signal, is identified and corrected by reference to the 3D segmentation. Adjusting the direct method in this way we have reduced the difference to 6%, suggesting that algorithmic approaches provide accurate ventricular volume estimation.

Paper Details

Date Published: 16 April 1996
PDF: 11 pages
Proc. SPIE 2710, Medical Imaging 1996: Image Processing, (16 April 1996); doi: 10.1117/12.237923
Show Author Affiliations
Ioannis N. Manousakas, Univ. of Aberdeen and Aberdeen Royal Hospitals Trust (United Kingdom)
Peter E. Undrill, Univ. of Aberdeen and Aberdeen Royal Hospitals Trust (United Kingdom)
Thomas W. Redpath, Univ. of Aberdeen and Aberdeen Royal Hospitals Trust (United Kingdom)

Published in SPIE Proceedings Vol. 2710:
Medical Imaging 1996: Image Processing
Murray H. Loew; Kenneth M. Hanson, Editor(s)

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