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24
APR
2013

Computer-assisted Neurosurgery with Image Guidance and Electromagnetic Tracking

Brain navigation consists in travelling along acheter du cialis en ligne an established trajectory inside the brain anatomy in order to locate and reach a target of interest. To achieve this, neuronavigation systems provide a set of technological resources to the surgeons, allowing th
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23
APR
2013

An Electromagnetic Tracking System for Surgical Navigation with Registration of Fiducial Markers using the Iterative Closest Point Algorithm

During a minimal invasive neurosurgery it is necessary to know precisely the 3D position of the surgical instruments and their relationship and interaction with the anatomy of the human brain. Today, on developing countries many surgeons still operate without 3D visual aids, managing
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22
APR
2013

Reconstruction of the Cerebral Ventricles using Several Segmentation Methods based on Level Set Implemented by Insight Toolkit (ITK)

The segmentation of cerebral structures in medical images has numerous clinical applications. It can provide significant aids for the diagnosis of some pathology. In this work, we developed a software application for the segmentation of medical images using a new segmentation method b
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21
APR
2013

3D Modeling with Support Vector Machines

ABSTRACT We developed a new approach based on Support Vector Machines (SVM) to model solids defined by a set of points on their surface. In problems of classification, regression and support of distribution, SVM are focused in the hyper-planes of maximum margin in the feature space. H
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18
APR
2013

Calibration of the Magnetic Tracker for Acquisition of 3D Images to guide Neurosurgeries

This work is about the calibration of the magnetic tracker MiniBirdTM used to register spatial positions. This calibration is a procedure done necessarily to obtain important points for the execution of Computer Assisted Neuro-Surgery using 3D Images (CANS); as well as the reconstruct
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