fMRI Data Analysis
Hall 4
Thursday: 13:30 - 15:30
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1719.
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Biased Activation Onset Times in Segmented-EPI fMRI Series
Corrected by Fourier Interpolation in the K-space
Pierre-Francois Van De Moortele1, Amir Shmuel1, Josef Pfeuffer1, Essa Yacoub1, Kamil Ugurbil1, Xiaoping Hu1
1University of Minnesota, Minneapolis, MN, USA.
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1720.
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PCA for Mapping Time Delays in the Transient Response from Functional MRI Studies
Anders H. Andersen1, William S. Rayens1, Robin Greene-Avison1, Creed Pettigrew1, Joseph Berger1, Malcolm J. Avison1
1University of Kentucky, Lexington, KY USA.
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1721.
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Phase Synchronization: A Method of Detecting Functional Connectivity
Angela Laird1, John Carew1, Baxter Rogers1, Konstantinos Arfanakis1, Chad Moritz2, M. Meyerand1
1University of Wisconsin-Madison, Madison, WI, USA; 2University of Wisconsin Colleges, Cross Plains, WI, USA.
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1722.
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Temporal Shift Sensitivity of Event Related FMRI
Luis Hernandez1, Douglas Noll1, David Thomas Badre2
1University of Michigan, Ann Arbor, MI, USA; 2Massachusetts Institiute of Technology, Boston, MA, USA.
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1723.
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Optimal Temporal Resolution in Single Event fMRI
B. Dilharreguy1, R. A. Jones2, Chrit Moonen3
1Université Bordeaux, Bordeaux, France; 2Université Victor Segalen, Bordeaux, France; 3Université Victor Segalen Bordeaux 2, Bordeaux, France.
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1724.
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Temporal Resolution Assessment of Simulated Event-related Functional MRI using ANOVA
Jian-chuan Chen1, Ho-Ling Liu1, Yau-yau Wai1, Yung-Liang Wan1
1Chang Gung Memorial Hospital, Taiwan, ROC.
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1725.
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The Temporal Constancy of Resting Brain Activity Implicated in fMRI Studies
Guojun He1, Jintong Mao1, Andrea S. Perry1, Jia-Hong Gao2, Peter Fox2, Yijun Liu1
1University of Florida, Gainesville, FL, USA; 2University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.
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1726.
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Frequency Domain Ranking Independent Component Analysis of a fMRI Complex Motor Paradigm
Chad Moritz1, JD Carew2, VM Haughton2, ME Meyerand2
1University of Wisconsin Colleges, Cross Plains, WI, USA; 2University of Wisconsin, Madison, WI, USA.
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1727.
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Modeling Hemodynamic Response in fMRI Using Wavelet Analysis
Yu Chen1, Shing-Chung Ngan1, Stephen Laconte1, Xiaoping Hu1
1University of Minnesota, Minneapolis, MN, USA.
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1728.
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Extraction of Transient BOLD Responses Associated with Cortical Spreading Depression using Spatial ICA
Chaiyapoj Netsiri1, Daniel P Bradley2, Justin M Smith2, Martin I Smith3, Nikolaos Papadakis1, Adrian Carpenter1, Laurance Hall2, Andrew A Parsons4, Christopher Huang2, Michael F James3
1University of Cambridge, Addenbrooke's Hospital, Cambridge, England, UK; 2University of Cambridge, Cambridge, England, UK; 3SmithKline Beecham Pharmaceuticals, Essex, England, UK; 4SmithKline Beecham Pharmaceuticals, King of Prussia, PA, USA.
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1729.
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Localization of Brain Alpha Activity by Functional MRI Using Independent Component Analysis
Jeong-Won Jeong1, Tae-Seong Kim1, Manbir Singh1
1University of Southern California, Los Angeles, CA, USA.
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1730.
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Comparison of Orthogonal and Independent Component Analysis on Dimension-Reduced fMRI Data in Patial Least Squares Framework
Fa-Hsuan Lin1, Anthony R. McIntosh2, Thomas A. Zeffiro3, John Agnew3, John Belliveau1
1Massachusetts General Hospital, Charlestown, MA, USA; 2University of Toronto, Toronto, ON, Canada; 3Georgetown University Medical Center, Washington, DC, USA.
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1731.
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Comparison of Hybrid Independent Component Analysis and Simple Regression of an Event-Related fMRI Experiment
Baxter Rogers1, John Carew1, Michelle Quigley1, Angela Laird1, Konstantinos Arfanakis1, Chad Moritz2, M. Meyerand1
1University of Wisconsin-Madison, Madison, WI, USA; 2University of Wisconsin Colleges, Cross Plains, WI, USA.
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1732.
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Bayesian Estimation of a Parameterized Hemodynamic Response Function in an Event-Related fMRI Experiment
Kevin H. Knuth1, Babak Ardekani2, Joseph A. Helpern3
1Nathan Kline Institute, New York University Medical School, New York, NY, USA; 2The Nathan S. Kline Institute, Orangeburg, NY, USA; 3New York University, New York, NY, USA.
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1733.
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Using Bayesian Analysis to Test the Linearity of the BOLD Response in Event-Related fMRI
Jeff Kershaw1, Kenichi Kashikura1, Iwao Kanno2
1Japan Science and Technology Corporation (JST), Akita City, Japan; 2Research Institute for Brain & Blood Vessels, Akita City, Japan.
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1734.
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Partial Least Squares for Balancing Variance Partitioning and Fixed-Effect Regression Models in fMRI Analysis
Anders H. Andersen1, William S. Rayens1, Zhiming Zhang1, Charles D. Smith1, Don Gash1
1University of Kentucky, Lexington, KY, USA.
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1735.
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Group Statistical Parametric Maps in Rat Pharmacological MRI
Andrew Lowe1, Mark Symms2, Mohammed Shoaib3, Steve Williams3
1Institute of Neurology, London, England, UK; 2National Society for Epilepsy, Gerrards Cross, England, UK; 3Institute of Psychiatry, London, England, UK.
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1736.
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An Optimised Permutation Test for fMRI Analysis
Matthew Belmonte1, Deborah Yurgelun-Todd1
1McLean Hospital, Belmont, MA, USA.
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1737.
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Should We Fit the Data to the Analysis Method? An In Vivo fMRI Study of the Spatio-temporal Heterogeneity of fMRI Data
Richard Baumgartner1, Ray Somorjai1, Lawrence Ryner1
1National Research Council Canada, Winnipeg, MB, Canada.
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1738.
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Regularised fMRI Signal Response Estimation in a Library of Orthonormal Bases
C. J. Long1, E.T. Bullmore2, E.M. Brown3, V. Solo4, M.J. Brammer1
1Institute of Psychiatry, London, UK; 2University of Cambridge, Addenbrookes Hospital, Cambridge, UK, ; 3Massachusetts General Hospital, Boston, MA, USA; 4Macquarie University, Sydney, NSW, Australia.
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1739.
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Local Clustering of Functional Magnetic Resonance Images in the Frequency Space
Jatuporn Chinrungrueng1, Francois Meyer1
1University of Colorado at Boulder, Boulder, CO, USA.
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1740.
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Spatially Connected Activation in fMRI at 3 Tesla: Influence on Somatotopy in Human Sensorimotor Cortex?
Christian Windischberger1, Roland Beisteiner2, Vinod Edward2, Marcus Erdler2, Rupert Lanzenberger3, Ross Cunnington2, Bernhard Streibl2, Andreas Gartus2, Ewald Moser1
1Institute for Medical Physics, Vienna, Austria; 2University of Vienna, Vienna, Austria; 3University of Vienna and General Hospital, Vienna, Austria.
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1741.
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A Significance Test for Clustering
William Auffermann1, Shing-Chung Ngan1, Essa Yacoub1, Xiaoping Hu1
1University of Minnesota, Minneapolis, MN, USA.
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1742.
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fMRI Of Visual Perception: Networks Identified By SPM And Independent Component Analysis
Vince Calhoun1, James Pekar2, Tulay Adali3, Godfrey D. Pearlson1
1Johns Hopkins University, Baltimore, MD, USA; 2Johns Hopkins University, Kennedy Krieger Institute, Baltimore, MD, USA; 3University of Maryland Baltimore County, Baltimore, MD, USA.
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1743.
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A Category System to Test the Feasibility of BOLD fMRI Motor Map for Patients with Brain Tumors and Arteriovenous Malformations.
Wen-Ching Liu1, Mathangi Thiagarajan1, Tzu-Lung Ho1, Andrew Kalnin1, Andrei Holodny1
1University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, NJ, USA.
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1744.
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Validating a Simple "Open" Head Restraint for use in fMRI
Cathy Nangini1, Emily Seto1, Abdel El-Rahmann1, Simon Graham1
1University of Toronto, Sunnybrook and Women's College Health Sciences Centre, Toronto, ON, Canada.
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1745.
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fMRI and Concurrent EEG in Patients with Focal Epilepsy: Processing of EEG Signals for fMRI Analysis
Goran Vucurevic1, Stephan Boor1, Rainer Boor2, Georg Kutschke2, Peter Stoeter1
1Institute for Neuroradiology, Mainz, Germany; 2Kinder Klinik, Mainz, Germany.
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1746.
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Correlation Coefficient Generation on a Commercially Available Real-Time fMRI Scanner with Rapid Fusion of Anatomic Data for Application to Image-Guided Surgery
Theodore Roosevelt Steger III1, Edward Jackson1
1University of Texas M.D. Anderson Cancer Center, Houston, TX, USA.
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1747.
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Can Improved Statistical Modeling Reduce Residual Autocorrelation in fMRI?
Mehrdad Razavi1, Thomas J. Grabowski1, Sonya Mehta1, Lizann Bolinger1
1The University of Iowa, Iowa City, IA, USA.
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1748.
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Regression of a Semi Parametric Model of fMRI Time-Series in the Wavelet Domain
Francois G Meyer1, Gregory McCarthy2
1University of Colorado, Boulder, CO, USA; 2Duke University, Durham, NC, USA.
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1749.
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Using a Spectral Peak Statistic to Detect Potential fMRI Activiations
Mark Jarmasz1, Rajmund Somorjai1
1National Research Council Canada, Winnipeg, MB, Canada.
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1750.
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High fMRI Percent Enhancements at High Resolution
J. S. Hyde1, B. B. Biswal1, A. Jesmanowicz1
1Medical College of Wisconsin, Milwaukee, WI, USA.
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BASIC SCIENCE FOCUS SESSION (WITH POSTERS)
MRI Safety and Bioeffects
Forth
Wednesday: 13:30 - 15:30
Chairs: Geoffrey D. Clarke
David G. Norris
Roger J. Ordidge
13:30
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1751.
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Vibroacoustic Modeling of Noise in Magnetic Resonance Imagers
Robert A. Hedeen1, Richard P. Mallozzi1, William A. Edelstein1, Timothy J. Havens2
1GE Corporate R & D, Schenectady, NY, USA; 2GE Medical Systems, Florence, SC, USA.
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13:40
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1752.
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Acoustic Noise Reduction in a 4T Whole Body MR Imager
Chris K. Mechefske1, Yuhua Wu1, Brian K. Rutt2
1University of Western Ontario, London, Ontario, Canada; 2The John P. Robarts Research Institute, London, Ontario, Canada.
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13:50
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1753.
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Reduction of Acoustic Noise in Gradient Coils
Peter Mansfield1, B. Haywood2, Ron Coxon1
1University of Nottingham, Nottingham, England, UK; 2General Magnetic.
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14:00
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1754.
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Stimulation of Peripheral Nerves by Fast Magnetic Field Gradients: A General Stimulation Forecast (GSF)
Alexander Hoffmann1, Sonja C Faber, Maximilian Reiser
1University of Munich, Klinikum Grosshadern, München, Germany.
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14:10
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1755.
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Stimulation Study of a Field Flexible Gradient System
Martin Brand1, Johann Schuster2, Ralph Michael Kimmlingen1, Axel Haase1
1Universität Würzburg, Würzburg, Germany; 2Siemens AG, Erlangen, Germany.
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14:20
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1756.
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Estimating In Vivo Temperature Changes Due to Localized RF Heating from Interventional Devices
Christopher J. Yeung1, Ergin Atalar1
1Johns Hopkins University, Baltimore, MD, USA.
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14:30
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1757.
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Heating Effects around Resonant Lengths of Wire during RF Excitation
Jacqueline Pictet1, Stephan Wicky2, Reto Meuli2, Jacques J. van der Klink1
1EPFL, Lausanne, Switzerland; 2CHUV Lausanne, Lausanne, Switzerland.
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14:40
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1758.
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Classical Analysis of RF Power Requirements in MRI
Tamer Ibrahim1, Robert Lee1, Brian Baertlein1, Pierre-Marie L. Robitaille1
1Ohio State University, Columbus, OH, USA.
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14:50
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1759.
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Heat Distribution Near Pacemaker Lead Tips
Roger Luechinger1, Oliver M. Weber1, Marcel Bieler1, Peter Boesiger1
1University and ETH Zurich, Zurich, Switzerland.
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15:00
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1760.
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Magnet Radius, Field Strength and the "Moses Effect"
Daniel Schaefer1
1G. E. Medical Systems, Milwaukee, WI, USA.
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15:10
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1761.
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Influence of Static Magnetic Fields and Magnetic Gradient Fields on Tumor Cell Cycle
Elke Maria Teichmann1, Jan Hengstler1, Ilka Schiffer1, Wolfgang Schreiber1, Robert Graf2, Franz Oesch1, Hans Wolfgang Spiess2, Manfred Thelen1
1Johannes Gutenberg-University, Mainz, Germany; 2Max-Planck-Institute of Polymer Research, Mainz, Germany;
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15:20
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1762.
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MRI at 3.0 Tesla: Preliminary Ex Vivo Animal and In Vivo Human Safety Studies.
A. Gregory Sorensen1, Ona Wu2, Kei Yamada3, J. Thomas Vaughan4
1Massachusetts General Hospital, Charlestown, MA, USA; 2MGH-NMR Center and MIT, Cambridge, MA, USA; 3MGH-NMR Center, now at Kyoto Prefectural University of Medicine, Kyoto, Japan; 4MGH-NMR Center, now at University of Minnesota, Minneapolis, MN, USA.
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