Maite Termenón, Manuel Graña, Ariadna Besga, J. Echeveste, Ana González‐Pinto,
... s correlation between the LICA residuals at each voxel site and the data indicative variable. Voxel sites having an absolute value Pearson's correlation above a given percentile of its empirical distribution are selected as feature variables for classification. We compare the LICA based feature selection with (a) a Pearson's correlation approach on the raw FA data, and (b) a voxel based morphometry (VBM) approach. We apply relevance vector ...
Tópico(s): Functional Brain Connectivity Studies
2012 - Elsevier BV | Neurocomputing
Manuel Graña, Maite Termenón, Alexandre Savio, Ana González‐Pinto, J. Echeveste, J.M. Pérez, Ariadna Besga,
... s correlation between FA or MD values at voxel site across subjects and the indicative variable specifying the subject class. Voxel sites with high absolute correlation are selected for feature ...
Tópico(s): Functional Brain Connectivity Studies
2011 - Elsevier BV | Neuroscience Letters
Si Van-Tien Tran, Doyeop Lee, Hai Chien Pham, Long H. Dang, Chansik Park, Ung-Kyun Lee,
... To address these issues, this research proposes a voxel-based site coverage and overlapping analysis for camera allocation planning ...
Tópico(s): BIM and Construction Integration
2024 - Multidisciplinary Digital Publishing Institute | Buildings
Darya Chyzhyk, Alexandre Savio, Manuel Graña,
... achieve quite successful classification experiments, providing biologically plausible voxel-site localizations.
Tópico(s): EEG and Brain-Computer Interfaces
2015 - Elsevier BV | Neural Networks
Richard A. Komoroski, Kathryn J. Kotrla, Lisa Lemen, Diana M. Lindquist, Paola Monterroso Díaz, Anne L. Foundas,
... were in the range found for previous single-voxel, single-site reproducibility studies. No differences were found among the ...
Tópico(s): NMR spectroscopy and applications
2004 - Elsevier BV | Magnetic Resonance Imaging
Julio Carballido‐Gamio, Serena Bonaretti, Galateia J. Kazakia, Sundeep Khosla, Sharmila Majumdar, Thomas Lang, Andrew J. Burghardt,
... Jacobians at baseline bone voxels. In both anatomical sites, voxel- and vertex-wise uni- and multi-parametric comparisons ...
Tópico(s): Medical Imaging Techniques and Applications
2016 - Springer Science+Business Media | Annals of Biomedical Engineering
Carina Graf, Erin L. MacMillan, Eric Fu, Trudy Harris, Anthony Traboulsee, Irene M. Vavasour, Alex L. MacKay, Burkhard Mädler, David K.B. Li, Cornelia Laule,
... Metabolite concentrations were robust to small inconsistencies in voxel placement and site was not the driving factor in the variance ... 65% of the variance). Conclusion A large single‐voxel 1 H‐MRS acquisition from a single manufacturer's MRI scanner is highly reproducible and reliable for multi‐site clinical trials.
Tópico(s): Advanced Neuroimaging Techniques and Applications
2019 - Wiley | NMR in Biomedicine
Yury I. Miller, Mi-Kyung Chang, Colin Funk, James R. Feramisco, Joseph L. Witztum,
... LO-specific intensity of 5.40 ± 0.73/voxel at the site of apoptotic cell binding versus2.40 ± 1.16/voxel in the rest of cell perimeter (p < 0.001) providing additional evidence that 12/15-LO translocation is concentrated at sites of contact with apoptotic cells. The cytochalasin D ...
Tópico(s): Cell Adhesion Molecules Research
2001 - Elsevier BV | Journal of Biological Chemistry
... function values and the categorical variable at each voxel site allows to identify the most informative voxel sites. Feature vectors are constructed as the h-function ...
Tópico(s): EEG and Brain-Computer Interfaces
2013 - Springer Science+Business Media | Lecture notes in computer science
S. Nithiananthan, Sebastian Schäfer, Daniel Mirota, J. Webster Stayman, Wojciech Zbijewski, Douglas D. Reh, Gary L. Gallia, Jeffrey H. Siewerdsen,
... tissue excision, whereas XDD provided accurate “ejection” of voxels within the excision site and maintained the registration accuracy throughout the rest ... The extra‐dimensional approach yielded accurate “ejection” of voxels local to the excision site while preserving the registration accuracy (typically subvoxel) of ...
Tópico(s): Medical Imaging and Analysis
2012 - Wiley | Medical Physics
Niels K. Focke, Gunther Helms, S. Kaspar, Chris J. Diederich, Vivien Tóth, Peter Dechent, Alexander Mohr, Walter Paulus,
Voxel-based morphometry (VBM) is a widely applied method in computational neurosciences but it is currently recommended to compare only data collected at a single MRI scanner. Multi-site VBM would be a desirable approach to increase group size and, thus, statistical power. We aimed ...
Tópico(s): Functional Brain Connectivity Studies
2011 - Elsevier BV | NeuroImage
Heath Pardoe, Gaby S. Pell, David F. Abbott, Anne T. Berg, Graeme D. Jackson,
Voxel-based morphometry analysis of neurological disorders would benefit if it could use data acquired from different scanners, but scanner based contrast variation could interfere with the detection of disease-specific structural abnormalities. In this study we examine MRI data from three different sites to investigate structural differences between childhood absence epilepsy (CAE) subjects and controls. T1-weighted structural MRI ...
Tópico(s): EEG and Brain-Computer Interfaces
2008 - Elsevier BV | NeuroImage
Koji Kamagata, Keigo Shimoji, Masaaki Hori, Akira Nishikori, Kohei Tsuruta, Mariko Yoshida, Kouhei Kamiya, Ryusuke Irie, Michimasa Suzuki, Shinsuke Kyogoku, Yuriko Suzuki, Noriko Sato, Shigeki Aoki,
... identical 3T scanners and acquisition protocols at 2 sites. Voxel-based analysis revealed several regions with significant intersite ...
Tópico(s): Advanced MRI Techniques and Applications
2015 - Japan Society of Magnetic Resonance in Medicine | Magnetic Resonance in Medical Sciences
Oliver J. Hulme, Louise Whiteley, Stewart Shipp,
... at more than one direction of attentional shift. Voxel clusters at anatomically equivalent sites across subjects revealed a broad range of directional ...
Tópico(s): Face Recognition and Perception
2010 - American Physiological Society | Journal of Neurophysiology
Klemens Winder, F. Seifert, Martin Köhrmann, Carl C. Crodel, Stephan P. Kloska, Arnd Dörfler, Katharina M. Hösl, Stefan Schwab, Max J. Hilz,
... stroke-related erectile dysfunction and cerebral ischaemic lesion sites using voxel-based lesion mapping. In 52 males (mean age ... volume, brain volume, and cardiovascular risk factors. The voxel-wise subtraction analysis showed associations between stroke-related erectile dysfunction and lesion sites in the right occipito-parietal cortex and thalamus, ... left insula and adjacent temporo-parietal areas. Using voxel-wise t-test statistics, we showed associations between deterioration of erectile function and lesion sites in the right occipital and thalamic region, and ...
Tópico(s): Sexuality, Behavior, and Technology
2017 - Oxford University Press | Brain
Greg Brown, Daniel H. Mathalon, Hal S. Stern, Judith M. Ford, Bryon A. Mueller, Douglas N. Greve, Gregory McCarthy, James Voyvodic, Gary H. Glover, Michèle T. Diaz, Elizabeth Yetter, İbrahim Burak Özyurt, Kasper W. Jørgensen, Cynthia G. Wible, Jessica A. Turner, Wesley K. Thompson, Steven G. Potkin,
... over runs increased between-site reliability, with many voxels showing good to excellent between-site reliability when eight runs were averaged and regions ... between-site reliability, dissociations were observed for many voxels. Brain regions where the pooled effect size was large but between-site reliability was poor were associated with reduced individual ...
Tópico(s): Advanced Neuroimaging Techniques and Applications
2010 - Elsevier BV | NeuroImage
... is, in a first step, to investigate the voxels in balls centred around the sites, and, in a second step, to process the ... NvlnNs), where Nv is the total number of voxels of the domain and Ns the number of sites of the tessellation. Periodic and non-periodic boundary ...
Tópico(s): Topology Optimization in Engineering
2022 - Elsevier BV | Advances in Engineering Software
Olivia Sobczyk, Ece Su Sayin, Kevin Sam, Julien Poublanc, James Duffin, Joseph A. Fisher, David J. Mikulis,
... Despite uniform stimulus and test conditions, differences in voxel-wise BOLD changes between testing sites may remain, attributable to physiologic and machine variability. ... generated a reference atlas of normal CVR metrics (voxel-wise mean and SD) for each of two sites. We hypothesized that there would be no significant ... were co-registered into a standard space and voxel-wise mean and SD CVR metrics were calculated. Map comparisons of z scores found no significant differences between white matter or gray matter in the 20 subjects scanned at both sites when analyzed with either atlas. We conclude that ...
Tópico(s): Cerebrovascular and Carotid Artery Diseases
2021 - Frontiers Media | Frontiers in Physiology
... Diemelstadt sandstone. By varying the mapping of CT voxel densities to lattice sites, it is shown that binary image segmentation may ...
Tópico(s): Advanced Mathematical Modeling in Engineering
2015 - Springer Science+Business Media | Computational Particle Mechanics
Ke Nie, Cynthia Chuang, Neil Kirby, Steve Braunstein, Jean Pouliot,
... Results: Performance of registration algorithms varies with clinical sites. The voxel‐by‐voxel analysis showed the intensity‐based free‐ ...
Tópico(s): Medical Imaging Techniques and Applications
2013 - Wiley | Medical Physics
Alejandro Bertolet, M. A. Cortés‐Giraldo, Kevin Souris, Marie Cohilis, A Carabe‐Fernandez,
... is estimated assuming a model in which the voxel is completely filled by microdosimetric sites. Then, dose at every voxel is computed by integrating the average energy imparted ...
Tópico(s): Radiation Effects in Electronics
2019 - Wiley | Medical Physics
Tom W. J. Scheenen, Jurgen J. Fütterer, Elisabeth Weiland, Paul Van Hecke, Marc Lemort, Christian M. Zechmann, Heinz-Peter Schlemmer, Dale R. Broome, Geert Villeirs, Jianping Lu, Jelle O. Barentsz, Stefan Roell, Arend Heerschap,
... focus size (P =0.0008) and certainty of voxel mapping to histopathologic cancer site (P 0.0001). The area under the receiver operating characteristic curve for discriminating voxels of cancer tissue from noncancer tissue was 0. ...
Tópico(s): Molecular Biology Techniques and Applications
2010 - Lippincott Williams & Wilkins | Investigative Radiology
Liye Liu, Zhi Zeng, Junli Li, Binquan Zhang, Rui Qiu, Jizeng Ma,
A site-specific skeleton voxel model for a Chinese adult male was constructed in this paper upon a previous Chinese individual voxel model. The whole skeleton was divided into 19 site-specific bones and bone groups; the mass of various skeleton tissues at each bone site, e.g. red bone marrow, was specified according to Asian reference data and the distribution data from ICRP Publication 70. The resultant voxel model (called CAM) has a resolution of 1. ...
Tópico(s): Digital Radiography and Breast Imaging
2009 - IOP Publishing | Physics in Medicine and Biology
Rumpa Ganguly, Aruna Ramesh, Sarah Pagni,
... The CBCT-based linear measurements in the edentulous sites using different voxel sizes and FOVs are accurate compared with the direct caliper measurements of these sites. Higher resolution CBCT images with smaller voxel size did not result in greater accuracy of ...
Tópico(s): Oral and Maxillofacial Pathology
2016 - | Imaging Science in Dentistry
Hans Dierckx, Alan P. Benson, Stephen Gilbert, Michael E. Ries, Arun V. Holden, Henri Verschelde, Olivier Bernus,
... wall (LVFW) and posterior left-right ventricular insertion site. Most voxels within the LVFW show high fractional anisotropy (FA), Gaussian diffusion profiles, and a single population of aligned fibres. In these, the difference between fibre helix angles estimated by DTI and QBI is below 5°. However, we show that reduced FA near the anterior papillary muscle in the LVFW and in most of the left-right ventricular fusion site correlates with non-Gaussian diffusion. The QBI orientation ...
Tópico(s): MRI in cancer diagnosis
2009 - Springer Science+Business Media | Lecture notes in computer science
Alberto De Luca, Süheyla Çetin Karayumak, Alexander Leemans, Yogesh Rathi, Stephan P. Swinnen, Jolien Gooijers, Amanda Clauwaert, Roald Bahr, Stian Bahr Sandmo, Nir Sochen, David Kaufmann, Marc Muehlmann, Geert Jan Biessels, Inga K. Koerte, Ofer Pasternak,
... were observed both at the whole brain and voxel level between all the acquisition sites before harmonization, but not after. The RISH method ...
Tópico(s): Advanced MRI Techniques and Applications
2022 - Elsevier BV | NeuroImage
Vee San Cheong, Ana Marin, Damien Lacroix, Enrico Dall’Ara,
... stimuli, and 59% and 47% of the predicted voxels matched with the experimental sites in apposition and resorption, respectively. The model was ...
Tópico(s): Elasticity and Material Modeling
2019 - Springer Science+Business Media | Biomechanics and Modeling in Mechanobiology
Massimo De Melis, Keita Tanaka, Y. Uchikawa,
... human heart. The heart volume is divided into voxels, each one being the site of one current dipole that has varying orientation ...
Tópico(s): Blind Source Separation Techniques
2010 - IEEE Magnetics Society | IEEE Transactions on Magnetics
Sarang Joshi, Brad Davis, Matthieu Jomier, Guido Gerig,
... population variability and inter-population differences, to provide voxel-wise mapping of functional sites, and help tissue and object segmentation via registration ...
Tópico(s): Cell Image Analysis Techniques
2004 - Elsevier BV | NeuroImage
Pascal O. Zinn, Masumeh Hatami, Eslam Youssef, Ginu Thomas, Markus M. Luedi, Sanjay K. Singh, Rivka R. Colen,
... and, hence, there is no exact corresponding imaging voxel matched to the biopsy site. Furthermore, causality needs to be evaluated in future ...
Tópico(s): Advanced Neuroimaging Techniques and Applications
2016 - Lippincott Williams & Wilkins | Neurosurgery