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Atlas-based segmentation of the brain for 3-dimensional treatment planning in children with infratentorial ependymoma

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Impaired Imagery for Upper Limbs

Olaf Blanke

The brain processes associated with mental imagery have long been a matter of debate. Neuroimaging and neuropsychological studies have yielded diverging evidence of mental transformation activating the right hemisphere, the left hemisphere, or both. Here, ...

Springer Verlag2009

Model-based Segmentation and Image Fusion of 3D Computed Tomography and 3D Ultrasound of the Eye for Radiotherapy Planning

Jean-Philippe Thiran, Meritxell Bach Cuadra, Subrahmanyam Venkata Ravi Mohana Sai Gorthi, Alessia Pica

For radiotherapy treatment planning of retinoblastoma in childhood, Computed Tomography (CT) represents the standard method for tumor volume delineation, despite some inherent limitations. CT scan is very useful in providing information on physical density ...

2009

Body schematics: on the role of the body schema in embodied lexical-semantic representations

Christian Pfeiffer

Words denoting manipulable objects activate sensorimotor brain areas, likely reflecting action experience with the denoted objects. In particular, these sensorimotor lexical representations have been found to reflect the way in which an object is used. In ...

2009

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This paper presents an ITK implementation for exporting the contours of the automated segmentation results to DICOM-RT Structure Set format. The “radiotherapy structure set” (RTSTRUCT) object of the DICOM standard is used for the transfer of patient struct ...

2009

Metabolic changes in the normal ageing brain: Consistent findings from short and long echo time proton spectroscopy

Objectives: Sixty three healthy subjects were measured to assess dependence of brain metabolites on age using short- and long echo time spectroscopy in different brain regions. Material and methods: Younger and elderly humans were measured with long echo t ...

2008

Brain Surface Segmentation of Magnetic Resonance Images of the Fetus

Jean-Philippe Thiran, Meritxell Bach Cuadra, Marie Schaer, Dominique Zosso, Nawal Houhou, Damien Ferrario

In this work we present a method for the image analysis of Magnetic Resonance Imaging (MRI) of fetuses. Our goal is to segment the brain surface from multiple volumes (axial, coronal and sagittal acquisitions) of a fetus. To this end we propose a two-step ...

2008

This paper is a joint effort between five institutions that introduces several novel similarity measures and combines them to carry out a multimodal segmentation evaluation. The new similarity measures proposed are based on the location and the intensity v ...

Springer Berlin / Heidelberg2007

Objects Deep brain stimulation (DBS) has turned out to be the surgical technique of choice for the treatment of movement disorders, e.g. Parkinsons disease (PD), the usual target being the subthalamic nucleus (STN). The targeting of such a small structure ...

IEEE2006

Atlas-based segmentation of medical images locally constrained by level sets

Jean-Philippe Thiran, Valérie Duay, Nawal Houhou

Atlas-based segmentation has become a standard paradigm for exploiting prior knowledge in medical image segmentation. In this paper, we propose a method to exploit both the robustness of global registration techniques and the accuracy of a local registrati ...

2005

ATLAS-BASED SEGMENTATION OF MEDICAL IMAGES LOCALLY CONSTRAINED BY LEVEL SETS

Jean-Philippe Thiran, Valérie Duay, Nawal Houhou

IEEE2005