Optimized intensity thresholds for volumetric analysis of magnetic-resonance imaging data (Proceedings Only)

Marijn E. Brummer

doi:10.1117/12.131086

22 September 1992 Optimized intensity thresholds for volumetric analysis of magnetic-resonance imaging data (Proceedings Only)

Marijn E. Brummer

Author Affiliations +

Proceedings Volume 1808, Visualization in Biomedical Computing '92; (1992) https://doi.org/10.1117/12.131086
Event: Visualization in Biomedical Computing, 1992, Chapel Hill, NC, United States

Abstract

A technique is presented for computing optimal threshold values for volumetric analysis of MRI data, in the presence of partial volume effects and noise. Thresholds are computed from nominal structure intensities, detected from intensity histograms. Histogram modification methods are described to improve the detectability of these intensities. The implementation of the technique is discussed for detection of contours of the brain and the ventricular system. Results are presented of validation experiments using simulated data, generated from MRI scans of a phantom of the ventricular system in the brain, and of six whole-brain MRI scans.

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Marijn E. Brummer "Optimized intensity thresholds for volumetric analysis of magnetic-resonance imaging data (Proceedings Only)", Proc. SPIE 1808, Visualization in Biomedical Computing '92, (22 September 1992); https://doi.org/10.1117/12.131086

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