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Proceedings Paper

Multi-atlas segmentation of the hydrocephalus brain using an adaptive ventricle atlas
Author(s): Muhan Shao; Aaron Carass; Xiang Li; Blake E. Dewey; Ari M. Blitz; Jerry L. Prince; Lotta M. Ellingsen
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Paper Abstract

Normal pressure hydrocephalus (NPH) is a brain disorder caused by disruption of the flow of cerebrospinal fluid (CSF). The dementia-like symptoms of NPH are often mistakenly attributed to Alzheimer’s disease. However, if correctly diagnosed, NPH patients can potentially be treated and their symptoms reversed through surgery. Observing the dilated ventricles through magnetic resonance imaging (MRI) is one element in diagnosing NPH. Diagnostic accuracy therefore benefits from accurate, automatic parcellation of the ventricular system into its sub-compartments. We present an improvement to a whole brain segmentation approach designed for subjects with enlarged and deformed ventricles. Our method incorporates an adaptive ventricle atlas from an NPH-atlas-based segmentation as a prior and uses a more robust relaxation scheme for the multi-atlas label fusion approach that accurately labels the four sub-compartments of the ventricular system. We validated our method on NPH patients, demonstrating improvement over state-of-the-art segmentation techniques.

Paper Details

Date Published: 12 March 2018
PDF: 7 pages
Proc. SPIE 10578, Medical Imaging 2018: Biomedical Applications in Molecular, Structural, and Functional Imaging, 105780F (12 March 2018); doi: 10.1117/12.2295613
Show Author Affiliations
Muhan Shao, Johns Hopkins Univ. (United States)
Aaron Carass, Johns Hopkins Univ. (United States)
Xiang Li, Johns Hopkins Univ. (United States)
Blake E. Dewey, Johns Hopkins Univ. (United States)
Ari M. Blitz, Johns Hopkins Univ. (United States)
Jerry L. Prince, Johns Hopkins Univ. (United States)
Lotta M. Ellingsen, Johns Hopkins Univ. (United States)
Univ. of Iceland (Iceland)

Published in SPIE Proceedings Vol. 10578:
Medical Imaging 2018: Biomedical Applications in Molecular, Structural, and Functional Imaging
Barjor Gimi; Andrzej Krol, Editor(s)

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