Refine your search:

Containing Text
- - -
+
Filter by author or institution
GO
Filter by publication date
From:
October, 2006
Until:
Today
Filter by section
 
 
Magnetic Resonance Imaging: Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.
 JoVE Neuroscience

High-resolution In Vivo Manual Segmentation Protocol for Human Hippocampal Subfields Using 3T Magnetic Resonance Imaging

1Institute of Biomaterials and Biomedical Engineering, University of Toronto, 2Computational Brain Anatomy Laboratory, Douglas Institute, McGill University, 3McGill Centre for Studies in Aging, McGill University, 4MRI Unit, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, 5Department of Psychiatry, University of Toronto, 6School of Psychology, University of Wollongong, 7Neuroscience Research Australia, 8Department of Medicine, University of Toronto, 9Kimel Family Translational Imaging Genetics Research Laboratory, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health


JoVE 51861

 JoVE Immunology and Infection

Monitoring Dendritic Cell Migration using 19F / 1H Magnetic Resonance Imaging

1Experimental and Clinical Research Center, A joint cooperation between the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, 2Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrück Center for Molecular Medicine


JoVE 50251

 JoVE Bioengineering

Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging

1Department of Radiology and Biomedical Imaging, University of California, San Francisco, 2School of Medicine, University of California, San Francisco, 3Department of Radiology and Biomedical Imaging, UCSF Medical Center, 4University of California, San Francisco, 5Hansen Medical, Mountain View, CA


JoVE 50299

 Science Education: Essentials of Neuroscience

fMRI: Functional Magnetic Resonance Imaging

JoVE Science Education

Functional magnetic resonance imaging (fMRI) is a non-invasive neuroimaging technique used to investigate human brain function and cognition in both healthy individuals and populations with abnormal brain states. Functional MRI utilizes a magnetic resonance signal to detect changes in blood flow that are coupled to neuronal activation when a specific task is performed. This is possible because hemoglobin within the blood has different magnetic properties depending on whether or not it is bound to oxygen. When a certain task is performed, there is an influx of oxygenated blood to brain regions responsible for that function, and this influx can then be detected with specific MRI scan parameters. This phenomenon is termed the blood oxygen level ependent (BOLD) effect, and can be used to create maps of brain activity. This video begins with a brief overview of how MRI and fMRI signal is obtained. Then, basic experimental design is reviewed, which involves first setting up a stimulus presentation that is specifically designed to test the function that will be mapped. Next, key steps involved in performing the fMRI scan are introduced, including subject safety and setting up at the scanner. Commonly used steps for data processing are then presented, including pre-processing and statistical analysis with the general linear

 JoVE Medicine

An Investigation of the Effects of Sports-related Concussion in Youth Using Functional Magnetic Resonance Imaging and the Head Impact Telemetry System

1Graduate Department of Rehabilitation Science, University of Toronto, 2Occupational Science and Occupational Therapy, University of Toronto, 3Department of Psychology, University of Toronto, 4Bloorview Kids Rehab, 5Toronto Rehab, 6Cognitive Neurology, Sunnybrook Health Sciences Centre, 7Faculty of Medicine, University of Toronto


JoVE 2226

 JoVE Medicine

Human Brown Adipose Tissue Depots Automatically Segmented by Positron Emission Tomography/Computed Tomography and Registered Magnetic Resonance Images

1Chemical and Physical Biology Program, Vanderbilt University, 2Department of Physical Medicine and Rehabilitation, Vanderbilt University School of Medicine, 3Radiology & Radiological Sciences, Vanderbilt University Medical Center, 4Department of Pharmacology, Vanderbilt University


JoVE 52415

 JoVE Neuroscience

The Use of Magnetic Resonance Spectroscopy as a Tool for the Measurement of Bi-hemispheric Transcranial Electric Stimulation Effects on Primary Motor Cortex Metabolism

1Department of Psychology, University of Montréal, 2Montreal Neurological Institute, McGill University, 3Center for Magnetic Resonance Research and Department of Radiology, University of Minnesota


JoVE 51631

 JoVE Medicine

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis

1Department of Radiology, Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, 2Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, 3Daiichi Sankyo Pharma Development


JoVE 52761

 JoVE Bioengineering

Biofunctionalized Prussian Blue Nanoparticles for Multimodal Molecular Imaging Applications

1The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Medical Center, 2Fischell Department of Bioengineering, University of Maryland, 3Department of Radiology, George Washington University, 4Department of Pediatrics, George Washington University


JoVE 52621

 JoVE Engineering

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

1Advanced Vision System Research Section, Electronics & Telecommunication Research Institute (ETRI), 2Intelligent Cognitive Technology Research Department, Electronics & Telecommunication Research Institute (ETRI), 3Peter Grünberg Institute (PGI-8), Forschungszentrum Jülich


JoVE 53869

 JoVE Medicine

MRI-guided dmPFC-rTMS as a Treatment for Treatment-resistant Major Depressive Disorder

1Institute of Medical Sciences, University of Toronto, 2MRI-Guided rTMS Clinic, University Health Network, 3Department of Psychiatry, University Health Network, 4Toronto Western Research Institute, University Health Network, 5Department of Psychiatry, University of Toronto, 6Faculty of Arts and Science, University of Toronto, 7Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health


JoVE 53129

 JoVE Neuroscience

In vivo Imaging of Optic Nerve Fiber Integrity by Contrast-Enhanced MRI in Mice

1Hans Berger Department of Neurology, Jena University Hospital, 2Immunology, Leibniz Institute for Age Research, Fritz Lipmann Institute, Jena, 3Institute of Diagnostic and Interventional Radiology, Medical Physics Group, Jena University Hospital


JoVE 51274

 JoVE Medicine

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

1LC Campbell Cognitive Neurology Research Unit, Heart & Stroke Foundation Canadian Partnership for Stroke Recovery, Brain Sciences Research Program, Sunnybrook Health Sciences Centre, 2Department of Medicine (Neurology), Institute of Medical Science, University of Toronto


JoVE 50887

12345678959
More Results...
Waiting
simple hit counter