R
Rita Lopes Simoes
Researcher at University of Twente
Publications - 7
Citations - 98
Rita Lopes Simoes is an academic researcher from University of Twente. The author has contributed to research in topics: Hyperintensity & Voxel. The author has an hindex of 4, co-authored 7 publications receiving 88 citations.
Papers
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Journal ArticleDOI
Automatic segmentation of cerebral white matter hyperintensities using only 3D FLAIR images.
Rita Lopes Simoes,Christoph Mönninghoff,Martha Dlugaj,Christian Weimar,Isabel Wanke,Anne-Marie van Cappellen van Walsum,Anne-Marie van Cappellen van Walsum,Cornelis H. Slump +7 more
TL;DR: This work proposes an automatic lesion segmentation method that uses only three-dimensional fluid-attenuation inversion recovery (FLAIR) images and uses a modified context-sensitive Gaussian mixture model to determine voxel class probabilities, followed by correction of FLAIR artifacts.
Journal ArticleDOI
Classification and localization of early-stage Alzheimer's disease in magnetic resonance images using a patch-based classifier ensemble.
Rita Lopes Simoes,Anne-Marie van Cappellen van Walsum,Anne-Marie van Cappellen van Walsum,Cornelis H. Slump +3 more
TL;DR: The method is able not only to perform accurate classification, but also to localize dis-criminative brain regions, which are in accordance with the medical literature, indicating that the method may be suitable for a clinical implementation that can help to diagnose AD at an earlier stage.
Proceedings Article
Using local texture maps of brain MR images to detect Mild Cognitive Impairment
TL;DR: This work proposes the use of local statistical texture maps that make no assumptions regarding the location of the affected brain regions and obtained an accuracy of 87% (sensitivity 85%, specificity 95%) with Support Vector Machines, outperforming the 63% achieved by the local gray matter density feature.
Proceedings ArticleDOI
Change detection and classification in brain MR images using change vector analysis
TL;DR: This paper presents an unsupervised 3D change detection method based on Change Vector Analysis that is able to detect and discriminate both small changes and ventricle expansions in datasets from Mild Cognitive Impairment patients.
Proceedings ArticleDOI
Early detection of Alzheimer's disease using histograms in a dissimilarity-based classification framework
Anne Luchtenberg,Rita Lopes Simoes,Anne-Marie van Cappellen van Walsum,Anne-Marie van Cappellen van Walsum,Cornelis H. Slump +4 more
TL;DR: Using an ensemble of local patches over the entire brain, the use of image histogram distance measures, determined both globally and locally, to detect very mild to mild Alzheimer’s disease is proposed.