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Topic: Functional MRI



  
 Magnetic resonance imaging - Wikipedia, the free encyclopedia
MRI has also found many niche applications outside of the medical and biological fields such as rock permeability to hydrocarbons and certain non-destructive testing methods such as produce and timber quality characterization.
Because of MRI's superior imaging of soft tissues, it is now being utilized to specifically locate tumors within the body in preparation for radiation therapy treatments.
Reflecting the fundamental importance and applicability of MRI in the medical field, Paul Lauterbur and Sir Peter Mansfield were awarded the 2003 Nobel Prize in Medicine for their discoveries concerning MRI.
http://www.wikipedia.org/wiki/MRI   (2923 words)

  
 fMRI - About Functional MRI(General)
Functional imaging results are compared with all conventional mapping studies performed on each patient including the WADA test, intraoperative cortical stimulation, electrophysiological assessments, and neurologic assessments of surgical outcome.
The experience of chronic and persistent pain is a debilitating condition for which the role of cortical processing is not well understood.
During a typical functional imaging series, 30 images are acquired in a 90 sec run where the initial and last 10 images are baseline conditions and the middle 10 images (30 secs) are acquired during a task.
http://www.fmri.org/fmri.htm   (2162 words)

  
 Functional magnetic resonance imaging - Wikipedia, the free encyclopedia
Functional Magnetic Resonance Imaging (or fMRI) describes the use of MRI to measure the hemodynamic response related to neural activity in the brain or spinal cord of humans or other animals.
Although it is not strictly a functional imaging technique because it does not measure dynamic changes in brain function, the measures of inter-area connectivity it provides are complementary to images of cortical function provided by BOLD fMRI.
Magnetic resonance spectroscopic imaging (MRS) is another, NMR-based process for assessing function within the living brain.
http://en.wikipedia.org/wiki/Functional_MRI   (1703 words)

  
 Functional MR Imaging of the Brain (fMRI)
MRI causes no pain, but there may be discomfort from being closed in or from the need to keep your head very still.
A radiologist, who is a physician experienced in MRI and other radiology examinations, will analyze the images and send a signed report with his or her interpretation to the patient's referring physician.
Functional magnetic resonance imaging (fMRI) is a relatively new procedure that uses MR imaging to measure the quick, tiny metabolic changes that take place in an active part of the brain.
http://www.radiologyinfo.org/content/functional_mr.htm   (1557 words)

  
 Functional MRI Imaging
Functional MRI is a new and powerful neuroimaging technique that can create an anatomical and functional model of an individual patient's brain.
Historically, neurosurgeons have mapped cortical function invasively by direct electrical stimulation of the cortex, either intra-operatively using a hand held stimulator or extra-operatively using chronically implanted subdural grids.
Finally, the functional MR images are then co-registered, fused and volume rendered with the anatomic images using both surface and volume based matching techniques [ANALYZE, Mayo Clinic] 8.
http://neurosurgery.mgh.harvard.edu/Functional/fmrimage.htm   (4170 words)

  
 MMRRCC - Research - Functional MRI
Functional MRI studies rely on changes in cerebral blood flow (CBF) as a surrogate measure of changes in metabolism and neural activity.
ASL perfusion MRI may become a practical approach for quantitative assessment of fetal circulation at tissue level because it is noninvasive and the pair-wise subtraction in generating perfusion images makes ASL inherently resistant to motion effect.
Neuroplasticity and the recovery of function from stroke
http://www.mmrrcc.upenn.edu/research/functional.html   (3516 words)

  
 Functional MRI and AIR
Cohen and colleagues use a technique known as functional MRI to record a view of the functioning brain that is among the most detailed yet reported.
They used the cluster to address a particular problem of their functional MRI experiments.
While other brain-mapping techniques give what resembles a satellite view of the world, in which cities can be seen and identified, the Pitt/CMU researchers can see streets.
http://www.psc.edu/science/Goddard/goddard_a.html   (552 words)

  
 Jezzard
Since MRI offers the possibility of non-invasive and repeated analysis of brain function, it provides the opportunity to undertake studies that could not be realized using other modalities.
However, functional MRI may provide a means to study child development.
Recently, several groups have developed techniques that use MRI to monitor brain function.
http://www.iomas.com/muritech/htdocs/visembryo/nichd/jezzard.html   (325 words)

  
 Breakthroughs in Bioscience - MRI: Medical Applications
Even with MRI to help in visualizing the functional anatomy of the brain, brain surgeons are afforded a view that is more like that from a tiny porthole rather than a picture window.
Using functional MRI (see box previous page), Dr. Marcel Just of Carnegie Mellon University is developing therapies that aim at improving the damaged brain's capacity to deal with its changed circumstances.
This use of MRI also might help determine whether a patient's treatment is working, as well as the effectiveness of new drugs being tested in clinical
http://www.faseb.org/opar/mri/med_mri.html   (1769 words)

  
 Neuroscience for Kids - Imaging
Functional MRI detects changes in blood flow to particular areas of the brain.
This technique could be used to study just about any other cognitive function.
Understand the relationships between specific areas of the brain and what function they serve.
http://faculty.washington.edu/chudler/image.html   (520 words)

  
 Brain reprograms itself after stroke--Functional MRI reveals brain’s innate plasticity and charts a direction for ...
While functional MRI has been largely used in research to map brain functions, it is just beginning to find clinical applications.
Watching the brain at work with a very-high-field MRI scanner, Thulborn has mapped a two-stage recovery process in patients who lost their language skills after strokes.
In this role, Thulborn said, functional MRI can guide and refine therapies to enhance the brain’s innate plasticity.
http://www.eurekalert.org/pub_releases/2001-02/UoIa-Bria-1702101.php   (724 words)

  
 11/04/04 Functional MRI speeds development of psychiatric drugs
Preliminary research of antidepressants is promising, but drug companies want a study showing functional changes in healthy volunteers or people with transient depression and the application of this information to predict therapeutic effects in very sick people.
Drug manufacturers are increasingly relying on functional MRI to help assess the efficacy of psychiatric drugs.
11/04/04 Functional MRI speeds development of psychiatric drugs
http://www.dimag.com/showNews.jhtml?articleID=51202569   (584 words)

  
 MRI Summer School
The emphasis of the course is on the physics of MRI.
Emphasis will be placed on developing an understanding of the physical processes involved and on the hardware of MRI, but the course will also include many aspects of imager use, background biophysics and clinical applications.
Practical and demonstration sessions will allow participants to obtain first-hand knowledge of the operation of an imager and associated equipment and to see the range of techniques used in developing such instruments.
http://www.biomed.abdn.ac.uk/SSchools/mri.html   (1299 words)

  
 Radiology Links : Reviewed Links : Functional MRI
Besides all this there are images of MRI Fly-Through of Human Brain and one can visualise the unique experience of the Unfolding of cortical surface of the brain.
Available at http://www.musc.edu/psychiatry/fnrd/primer_fmri.htm, the educative material concisely throws the spotlight on the basic concepts behind the main functional MRI techniques for imaging the brain.
Echo-planar imaging (EPI) and functional MRI is a primer authored by Mark S. Cohen, Ph.D. The material available at http://airto.loni.ucla.edu/BMCweb/BMC_BIOS/MarkCohen/Papers/EPI-fMRI.html is a concise and excellent summary of this exciting offshoot of MRI.
http://www.refindia.net/rlinks/reviewedlinks/functional_MRI.htm   (662 words)

  
 The MRI Division
The MRI technique uses a pulse of radio-frequency energy to excite the protons in the region of interest.
In vivo spectroscopy is a relatively new technique in the imaging field and is rapidly developing in importance and utility.
Rapid-scanning techniques, which allow the acquisition of an MR image in a time frame of 30 to 100 msec, have recently opened new applications in MRI including cardiac studies, blood flow, diffusion, drug therapy, and metabolic activity.
http://ric.uthscsa.edu/facts/mri.html   (746 words)

  
 Principles and practice of functional MRI of the human brain -- Gore 112 (1): 4 -- Journal of Clinical Investigation
Principles and practice of functional MRI of the human brain
Principles and practice of functional MRI of the human brain -- Gore 112 (1): 4 -- Journal of Clinical Investigation
of many current uses of functional imaging is that various behaviors
http://www.jci.org/cgi/content/full/112/1/4   (3376 words)

  
 [No title]
Below, we describe the principles underlying the different types of functional MRI and give examples of how each technology can be used in psychiatry research or clinical practice.
This allows distinction of old from new strokes which is often difficult to characterize with structural imaging and clinical exam alone when old and new strokes appear in the same brain region.
David A, Blamire A, Breiter H. Functional Magnetic Resonance Imaging: A new technique with implications for psychology and psychiatry.
http://www.musc.edu/fnrd/primer_fmri.htm   (4204 words)

  
 Functional MRI Radiology Books sorted by Sales
Functional Magnetic Resonance Imaging Studies of Visual Motion Processing in the Human...
Functional MRI could become lie detector.(Neuropsychiatric Medicine) : An article from:...
Atlas of Regional Anatomy of the Brain Using MRI: With Functional Correlations
http://www.books-n-such.com/radiology/f/Functional_MRI/index.html   (128 words)

  
 Dyslexia Functional Mri
dyslexia functional mri sites can be seen everywhere on web and one's-has no place to be conveyed on a person's body - not even their hair.
:: Functional MRI was performed on 20 children with dyslexia (8-12 years old) during phonological processing before and after a remediation program focused ::
:: Sound: Provides answers for children and adults with dyslexia and supports the :: on the brain through a new imaging technique called functional MRI.
http://bankingbloodcord.acordofblood.info/5/dyslexia-functional-mri.php   (492 words)

  
 Adaptive Analysis of Functional MRI Data
To locate active brain areas, the method utilizes local blood oxygenation changes which are reflected as small intensity changes in a special type of MR images.
The second use of CCA is found in a novel so-called exploratory analysis method which extracts interesting and representative structures in fMRI data.
The new CCA detection method encompasses and generalizes the traditional mass-univariate methods and can in this terminology be viewed as a mass-multivariate approach.
http://www.imt.liu.se/mi/Publications/Theses/PaperInfo/friman03.html   (416 words)

  
 Science, medicine, and the future: Functional magnetic resonance imaging in neuropsychiatry -- Longworth et al. 319 ...
The functional neuroanatomy of major depression: an fMRI study using an emotional activation paradigm.
Functional MRI has the potential to change our understanding of
Almost immediate localisation of brain function with real time imaging, allowing replacement of invasive preoperative procedures to localise functions in conditions such as vascular malformations, tumours, and intractable epilepsy
http://www.bmj.com/cgi/content/full/319/7224/1551   (2181 words)

  
 Functional MRI Analysis
Our group is investigating ways in which we can use such information to learn more about the interaction among different functional units of the human brain.
We use information theoretic techniques distinguish the patterns in a subject's fMRI that relate to what is known about the task he is performing, and thereby ignore confounding influences.
This is particularly important information to have during a brain surgery, so that important structures can be avoided.
http://www.ai.mit.edu/projects/medical-vision/fMRI   (472 words)

  
 Neuroguide.com - Functional Magnetic Resonance Imaging
This method can also be used to study the physiology of other organs-- for example, studying blood flow to pathological organs, thus helping us to understand the disease process.
The same group later used gradient echo and spin-echo inversion recovery fMRI to examine blood oxygenation levels and blood flow rates, respectively, in brain (Kwong, et al., 1992).
Left to their own devices, these vectors would relax.
http://www.neuroguide.com/gregg.html   (1871 words)

  
 Advanced MR Special Supplement: Neuroimaging expands with functional MRI
When referring clinicians order a clinical fMRI study, they expect to view the results painlessly, obtain an interpretation, and go over the results with a radiologist who is knowledgeable about both the functional aspects of the study and the clinical implications.
At this juncture, however, clinical decisions for temporal lobectomy should not be made solely on the basis of an fMRI examination.
It relies on blood flow changes occurring over several seconds.
http://www.dimag.com/advancedMR/neuro.shtml   (1949 words)

  
 Homepage Markus Knauff
Our research methods include behavioral studies, functional brain imaging, and experiments in real and virtual environments.
In my research, I combine experimental methods from cognitive psychology and functional brain imaging studies.
The research of the lab focuses on all aspect of human spatial cognition, with a special focus on spatial reasoning and navigation.
http://cognition.iig.uni-freiburg.de/team/members/knauff/knauff.htm   (609 words)

  
 'Virtual biopsy' - A new way to look at cancer
While functional MRI offers new ways to visualize cancer at work, it presents several problems that need to be solved before it becomes routinely useful in clinical care.
"Functional MRI can help us identify those areas, understand their particular features, and hopefully, design targeted therapies for those specific sites," says Knopp.
Knopp reviewed functional MRI in oncology in an article in the April issue of Molecular Cancer Therapeutics.
http://www.eurekalert.org/pub_releases/2003-05/osum-b-052903.php   (642 words)

  
 EPI and Functional MRI
First, and perhaps most importantly for functional imaging, the contrast behavior includes a T2*, as opposed to a T2 component.
Because EPI is fundamentally just a spatial encoding scheme, there are already a wide variety of variants that can be used to offer a correspondingly wide range of contrast behaviors.
What this means in practice, is that the user must not be interested in any phase deviations along the image.
http://airto.loni.ucla.edu/BMCweb/BMC_BIOS/MarkCohen/Papers/EPI-fMRI.html   (6497 words)

  
 Research Associate - Pediatric Functional MRI
Ph.D. in Physics, Chemistry, Biology, Psychology or Neuroscience preferred with doctoral dissertation in MRI or MRS.
Also desired is experience in human research studies involving children and their families.
Design and conduct fMRI experiments on the 3 Tesla scanner in the IRC involving pediatric subjects and psychiatry patients.
http://www.irc.chmcc.org/Jobs/fmripd.htm   (347 words)

  
 Functional MRI Enables Noninvasive Evaluation Of Epilepsy Patients
Of the study's 60 patients, 32 were not candidates for surgery or refused surgical treatment.
Based on fMRI results, five patients in Dr. Medina's study avoided a two-stage surgery with extra-operative direct electrical stimulation mapping and instead received a one-stage resection surgery.
"With fMRI, the physician, patient and family have more information about important critical areas of brain function, helping them make more informed decisions."
http://www.sciencedaily.com/releases/2005/06/050628063632.htm   (912 words)

  
 Breakthoughs in Bioscience - MRI: Functional MRI
Functional MRI (fMRI) enables researchers and physicians to visualize parts of the brain that are active during specific tasks.
Functional MRI aids neurosurgeons so that they can avoid damaging critical areas of the brain when performing delicate brain surgery.
fMRI also is revolutionizing brain surgery, helping surgeons to avoid damaging areas of the brain that are critical to speech, movement, and other necessary functions.
http://www.faseb.org/opar/mri/func_mri.html   (346 words)

  
 Introduction to FMRI
FMRI is a technique for determining which parts of the brain are activated by different types of physical sensation or activity, such as sight, sound or the movement of a subject's fingers.
After the experiment has finished, the set of images is analyzed.
The rest of the analysis is done using a
http://www.fmrib.ox.ac.uk/fmri_intro/brief.html   (394 words)

  
 Functional MRI
radiology, functional magnetic resonance imaging, brain energy metabolism, regulation of cerebral blood flow, implementation of fMRI sequences, control of fMRI experiments, neuropsychological applications, fMRI in epilepsy, surgical planning & learning
http://www.mediconf.com/recm/22105103.HTM   (41 words)

  
 11/18/02 Functional MRI zeroes in on back pain
Faulty pain-processing pathways in the brain may be responsible for lower back pain of unknown origin, according to University of Michigan researchers.
11/18/02 Functional MRI zeroes in on back pain
As the same team of investigators reported in May regarding the causes of fibromyalgia, functional MRI suggests that the brains of some patients experiencing back pain show an altered pain perception in response to stimulus that most would consider just as a gentle touch.
http://www.dimag.com/dinews/2002111801.shtml   (418 words)

  
 Functional MRI
T2 and T2*-weighted MRI are sensitive to changes in blood oxygenation (ɚ% change in signal at 1.5T)
Changes in venous blood oxygenation accompany changes in regional brain activity
Comparison of mean NMR signal level between images taken with patient active and images taken with patient at rest can yield information about brain regions involved in task
http://www.indyrad.iupui.edu/public/lectures/mri/iu_lectures/ufastimg1/tsld020.htm   (56 words)

  
 LookSmart - MRI and fMRI
Resource for the fMRI research community provides links to journals, brain atlases, organizations, grant opportunities and research.
We're always looking for ways to improve your search experience.
Article discusses the imaging technique's potential for investigations of brain function and disease, while noting problems to be overcome.
http://www.looksmart.com/eus1/eus302562/eus317837/eus317920/eus54857/eus54863/eus584668/r?l&   (271 words)

  
 Functional MRI
Measure Theory and Functional Analysis Course notes, exercises, old exams and links of interest to introductory functional analysis students, by Vitali Liskevich.
A text for teaching nonlinear functional analysis at the graduate level.
functional functional testing functional specification functional reading functional proteomics functional group functional foods functional food functional activities functional capacity functional appliances functional anatomy multimedia cdrom functional
http://www.serebella.com/encyclopedia/article-Functional_MRI.html   (336 words)

  
 HealthScout-Consumer Health News, Information and Resources Updated Daily--Functional MRI Spots Liars
Physical responses occur when lies are formed in the brain.
To find more information on specific conditions, please visit our partner sites:
Twice the number of areas in the brain were active in the people who were lying than in those who were telling the truth.
http://www.healthscout.com/news/1/8011504/main.html   (375 words)

  
 [No title]
The mechanism is still not clearly understood, but this provides a very sensitive method for measuring brain activity based on blood oxygen levels.
Functional MRI is expected to provide detailed information of the brain areas involved in various human mental activities.
http://www.macrocyclics.com/data/Functional-MRI.html   (473 words)

  
 Introduction to Functional MRI
Learn to identify some major structures in the brain on MRI images
Understand the basic underlying princples of BOLD fMRI and the fMRI response
Learn about the ventricular and vascular system in the brain
http://www.umich.edu/~fmri/course   (616 words)

  
 09/28/05 Functional MRI sniffs out liars and cheats
Functional MRI makes broader inroads into clinical practice
Questioning then proceeded while participants underwent blood oxygen level-dependent imaging in a clinical 3T MRI unit.
09/28/05 Functional MRI sniffs out liars and cheats
http://www.diagnosticimaging.com/showNews.jhtml?articleID=171201153   (525 words)

  
 Untitled Document
Her research involves the application of magnetic resonance imaging (MRI) techniques to the study of muscle metabolism, muscle recruitment and muscle blood flow during exercise.
Today, exercise physiology research is in the hands of Professor Jim Pivarnik and Assistant Professor Jeanne Foley.
Foley is one of Van Huss’ former students, and like her mentor has an interest in metabolism.
http://ed-web3.educ.msu.edu/NewEd/fall98/exerphys.htm   (675 words)

  
 "Functional MRI"
The students will learn about the fundamentals of NMR signal properties and both localization and imaging techniques.
Functional studies with MRI are finding ever-increasing number of applications in medical research and diagnosis.
One important area of functional NMR is spectroscopy which probes molecular changes in tissues e.g.
http://futu.tkk.fi/fmri2003.html   (358 words)

  
 Functional MRI and CerebroVascular Reactivity
See how changes in cerebrovascular reactivity can be visualized using functional MRI
Functional MRI Assessment of Cerebrovascular Reactivity and its Applications to Moya-Moya Disease and Brain Arteriovenous Malformation
Review example cases where abnormal cerebrovascular reactivity is demonstrated
http://www.medicalrounds.com/rounds/utoronto_rad_jcnr_20020122/?mrsessid=37922e6374909133bd7f89a485268dea   (202 words)

  
 Sanes Neuroscience Laboratory Lab Resources
Our laboratory is equiped to conduct psychophysical and functional MRI experiments.
We have access to an SGI Origin 2000 Server for functional MRI analysis, currently using AFNI for most of our analyses.
Regions analysis of functional MRI data: Creating Regions of Interest (ROIs) in AFNI
http://neuroscience.brown.edu/saneslab/resources.htm   (157 words)

  
 MRI News functional mri
Now we'd like to give you some tips which we think you should use when you're seeking info about functional mri.
When you're trying to find better info about functional mri, it will be easier said than done sorting out quality information from unprofessional functional mri proposals and help so it is clever to know how to qualify the information you are often given.
You need to understand that the recommendations we give is only relevant to internet information about functional mri.
http://www.mri-news.info/functional-mri.htm   (154 words)

  
 Douglas C. Noll Home Page
Projects include development of rapid image acquisition techniques such as spiral-scan MRI, analysis and elimination of physiological noise (cardiac, respiration) using acquisition and processing methods, elimination of movement artifacts through image registration, characterization of the fMRI temporal response to very short stimuli, and development of image processing and reconstruction methods.
In addition to methodological developments, I collaborate closely with cognitive neuroscientists and statisticians on the design of acquisition and processing methods for fMRI experiments.
My research is focused on the data acquisition and processing for imaging brain function using magnetic resonance imaging (functional MRI or fMRI).
http://www.eecs.umich.edu/~dnoll   (165 words)

  
 Pediatric Radiology, Functional MRI — Miami Children’s Hospital
These exams produce images that show the surface and the inner parts of the brain as in the best pictures of a scholarly book.
But the function of the brain could not be assessed with these tools.
Functional magnetic resonance imaging (fMRI) allows us to see the brain function related to its anatomy.
http://www.mch.com/clinical/radiology/fmri   (278 words)

  
 ISMRM: Magnetic Resonance Sites on the World Wide Web
You can find the requirements for clinical experience at www.arrt.org, select the Examinations tab to the left and click on Clinical Experience Requirements.
MRI Tutor J.R. Ballinger, Uof Florida - short descriptions of the basic concepts of MRI.
The Association of Educators in Radiological Sciences outlines the knowledge needed for passing the registry and becoming a competent MRI technologist.
http://www.ismrm.org/mr_sites.htm   (980 words)

  
 Scientists Put Traditional Chinese Cures to the Test
Kenneth Kwong never expected to dabble in ancient Chinese medicine.
It gives scientists live views of the brain in action, opening new horizons in the study of memory, language, and even the lure of cocaine.
A physicist at Massachusetts General Hospital, Kwong developed a revolutionary technology, called functional MRI.
http://news.nationalgeographic.com/news/2001/07/0725_chinesemed.html   (559 words)

  
 MRI - Magnetic Resonance Imaging Resource
Real-Time MRI Helps Doctors Assess Beating Heart in Fetus
US researchers have found that 3D MRI can detect pancreatic cancer when it is smaller and so give patients a greater chance of survival.
The proposed strategy is potentially useful for a variety of applications, including whole-body metastasis screening, whole-body MR angiography, large field-of-view imaging in short bore systems, and for moving table applications during MR-guided interventions.
http://www.spectroscopynow.com/coi/cda/home.cda?chId=3   (291 words)

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