Comparison of 3D split-and-merge segmentation with direct MRI determination of cerebral ventricule volume

Ioannis N. Manousakas; Peter E. Undrill; Thomas W. Redpath

doi:10.1117/12.237923

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16 April 1996 Comparison of 3D split-and-merge segmentation with direct MRI determination of cerebral ventricule volume

Ioannis N. Manousakas, Peter E. Undrill, Thomas W. Redpath

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Proceedings Volume 2710, Medical Imaging 1996: Image Processing; (1996) https://doi.org/10.1117/12.237923
Event: Medical Imaging 1996, 1996, Newport Beach, CA, United States

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.

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Ioannis N. Manousakas, Peter E. Undrill, and Thomas W. Redpath "Comparison of 3D split-and-merge segmentation with direct MRI determination of cerebral ventricule volume", Proc. SPIE 2710, Medical Imaging 1996: Image Processing, (16 April 1996); https://doi.org/10.1117/12.237923

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