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CreatorTitleDescriptionSubjectDate
1 Gerig, GuidoFiber tract-oriented statistics for quantitative diffusion tensor MRI analysisDiffusion tensor imaging (DTI) has become the major modality to study properties of white matter and the geometry of fiber tracts of the human brain. Clinical studies mostly focus on regional statistics of fractional anisotropy (FA) and mean diffusivity (MD) derived from tensors. Existing analysis t...Diffusion tensor interpolation, Diffusion tensor statistics, DTI analysis, Fiber tract modeling2006-01-01
2 Gerig, GuidoObject models in multiscale intrinsic coordinates via m-repsObject descriptions used for 3D segmentation by deformable models and for statistical characterization of 3D object classes benefit from having intrinsic correspondences over deformation of the objects or multiple instances in the same object class. These correspondences apply over a variety of spat...2003-01-01
3 Gerig, GuidoGroup analysis of DTI fiber tract statistics with application to neurodevelopmentDiffusion tensor imaging (DTI) provides a unique source of information about the underlying tissue structure of brain white matter in vivo including both the geometry of major fiber bundles as well as quantitative information about tissue properties represented by derived tensor measures. This paper...Diffusion tensor imaging; Registration; Tract modeling; Neurodevelopment; Statistical modeling2009-01-01
4 Gerig, GuidoAsymmetrical ventricular enlargement in Parkinsons DiseaseBackground-A recent case report suggested the presence of asymmetrical lateral ventricular enlargement associated with motor asymmetry in Parkinson's disease (PD). The current study explored these associations further. Methods-Magnetic resonance imaging (3T) scans were obtained on 17 PD and 15 healt...Structural magnetic resonance imaging; Semi-automatic segmentation; Lateral ventricular volume; Motor asymmetry; Parkinson's disease2007-01-01
5 Gerig, GuidoParticle based shape regression of open surfaces with applications to developmental neuroimagingShape regression promises to be an important tool to study the relationship between anatomy and underlying clinical or biological parameters, such as age. In this paper we propose a new method to building shape models that incorporates regression analysis in the process of optimizing correspondences...2009-01-01
6 Gerig, GuidoQuantification of measurement error in DTI: theoretical predictions and validationThe presence of Rician noise in magnetic resonance imaging (MRI) introduces systematic errors in diffusion tensor imaging (DTI) measurements. This paper evaluates gradient direction schemes and tensor estimation routines to determine how to achieve the maximum accuracy and precision of tensor derive...2007-01-01
7 Gerig, GuidoUser-guided 3D active contour segmentation of anatomical structures: significantly improved efficiency and reliabilityActive contour segmentation and its robust implementation using level set methods are well-established theoretical approaches that have been studied thoroughly in the image analysis literature. Despite the existence of these powerful segmentation methods, the needs of clinical research continue to b...Computational anatomy; Image segmentation; Caudate nucleus; 3D active contour models; Open source software; Validation; Anatomical objects2006-01-01
8 Yanowitz, Frank G.Alan E. Lindsay ECG Learning Center in CyberspaceAn interactive ECG tutorial representing an introduction to clinical electrocardiography.Electrocardiography1996-09-01
9 Gerig, GuidoNetwork inefficiencies in autism spectrum disorder at 24 monthsAutism spectrum disorder (ASD) is a developmental disorder defined by behavioral symptoms that emerge during the first years of life. Associated with these symptoms are differences in the structure of a wide array of brain regions, and in the connectivity between these regions. However, the use of c...2014-01-01
10 Gerig, GuidoNeuroimaging of structural pathology and connectomics in traumatic brain injury: toward personalized outcome predictionRecent contributions to the body of knowledge on traumatic brain injury (TBI) favor the view that multimodal neuroimaging using structural and functionalmagnetic resonance imaging (MRI and fMRI, respectively) as well as diffusion tensor imaging (DTI) has excellent potential to identify novel biomark...Trauma; Neuroimaging; MRI/fMRI; Diffusion tensor; Outcome measures2012-01-01
11 Hawkes, KristenA reappraisal of grandmothering and natural selectionKachel et al. [1] conclude from simulations of their agent-based model that fitness benefits from helpful grandmothers do not select for increased longevity. We studied their assumptions and model, ran further simulations and found flaws that are fatal to their test. Here, we explain four problems a...2011-01-01
12 Gerig, GuidoUnbiased atlas formation via large deformations metric mappingThe construction of population atlases is a key issue in medical image analysis, and particularly in brain mapping. Large sets of images are mapped into a common coordinate system to study intrapopulation variability and inter-population differences, to provide voxelwise mapping of functional sites,...Computational anatomy; Brain atlases; Image metric space2005-01-01
13 Hawkes, KristenIncreased longevity evolves from grandmotheringPostmenopausal longevity may have evolved in our lineage when ancestral grandmothers subsidized their daughters' fertility by provisioning grandchildren, but the verbal hypothesis has lacked mathematical support until now. Here, we present a formal simulation in which life spans similar to those of ...Human evolution; Life history; Sexual conflict2012-01-01
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