16 April 1996 Comparison of 3D split-and-merge segmentation with direct MRI determination of cerebral ventricule volume
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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, 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); doi: 10.1117/12.237923; https://doi.org/10.1117/12.237923
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