results stereoscopic displays of the nerves were obtained in all 24 elbows by vr, mip, and fiber tractography post-processing methods. the vr/mip post-processing methods were easier to perform compared to fiber tractography. there was no significant difference among the scores of fiber tracking and vr/mip reconstruction for single direction. the imaging quality scores of fiber tractography and ...

The functional Magnetic Resonance Imaging (fMRI) has provided us with an approach of revealing the activity of brain. Due to the large amount of data in fMRI studies, feature selection techniques are used to select particular features for classifier. In this project, Spectral Clustering is implemented to construct features to achieve best reconstruction of the data and be most efficient for mak...

We use Hidden Process Models (HPMs) to evaluate different models of a functional Magnetic Resonance Imaging (fMRI) study in which subjects decide whether stimuli match. We demonstrate the ability of HPMs to simultaneously estimate the hemodynamic response functions and the onset times of a set of cognitive processes underlying an fMRI time series, and to compare different models in a principled...

Functional Magnetic Resonance Imaging (FMRI) provides an unprecedented window into the complex functioning of the human brain, typically detailing the activity of thousands of voxels for hundreds of time points. The interpretation of FMRI is complicated, however, because of the unknown connection between the hemodynamic response and neural activity, and the unknown spatiotemporal characteristic...

Brain injuries are significant disorders affecting human life. Some of these damages can be completely eliminated by methods such as drug therapy. On the other hand, there is no known permanent treatment for caused diseases Alzheimer, Autism spectrum disorder (ASD), Multiple sclerosis and Parkinson. Treatments aimed at slowing progression disease generally applied in types disorders. For this r...

The dynamic core hypothesis posits that consciousness is correlated with simultaneously integrated and differentiated assemblies of transiently synchronized brain regions. We represented time-dependent functional interactions using networks assessed the integrity by means size flexibility largest multilayer module. As a first step, we constrained parameter selection newly developed benchmark fo...

OF DOCTORAL DISSERTATION AALTO UNIVERSITY SCHOOL OF SCIENCE AND TECHNOLOGY P.O. BOX 11000, FI-00076 AALTO http://www.aalto.fi Author Ville Renvall Name of the dissertation Studying functional magnetic resonance imaging with artificial imaging objects Manuscript submitted 19.1.2010 Manuscript revised 9.3.2010 Date of the defence 24.3.2010 Monograph Article dissertation (summary + original articl...