MRI Spectroscopy / Ezine
In-depth study of the electromagnetics of ultrahigh-field MRI
Date: Feb 22, 2007
Author:
In this paper, numerical and experimental studies of the TEM resonator modes at ultrahigh-field MRI are performed using an in-house finite difference time domain package at 340 MHz and using an 8 T whole-body MRI system.
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The brain gain
Date: Jan 26, 2007
Author: David Bradley
US researchers used fMRI to probe brain activity associated with potential monetary gains and losses. They certain regions are more sensitive when you are heading for the red than when you are in the black, providing clues to how gambling addiction and other behavioural problems might be studied.
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Itchy and scratchy
Date: Jan 1, 2007
Author: David Bradley
Researchers are only just begin to scratch the surface of the brain with functional MRI. Now, a study of perception in both allergen- and histamine-induced itch has revealed how different parts of the brain are activated in response to stimulation from each type.
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An account of the discrepancy between MRI and PET cerebral blood flow measures. A high-field MRI investigation
Date: Dec 19, 2006
Author:
Read an account of the controversy concerning the discrepancy between absolute cerebral blood flow values measured using positron emission tomography and magnetic resonance imaging.
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Twice as sensitive about matters of the heart
Date: Dec 1, 2006
Author: David Bradley
US researchers have demonstrated that MRI is twice as sensitive as other techniques at detecting early heart damage in patients with the immune system disorder sarcoidosis.
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Advances in MR imaging of the skin
Date: Nov 27, 2006
Author:
MR imaging of the skin is challenging because of the small size of the structures to be visualized. This review paper, published in the special issue of NMR in Biomedicine entitled "NMR of the Musculoskeletal System', highlights the recent advances that have been made in this field.
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fMRI reveals wider effects of Parkinson's disease
Date: Nov 1, 2006
Author: David Bradley
The common perception of Parkinson's disease is of a disorder that leads to problems with movement, tremors, involuntary spasms, and a shuffling gait. However, functional MRI has now confirmed that the disease can also cause widespread abnormalities in the sense of touch and vision for sufferers. An international team from the US and China presented their findings at the Society for Neuroscience meeting in Atlanta on October 17.
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Evaluation of treatment effects in Alzheimer's and other neurodegenerative diseases by MRI and MRS
Date: Oct 23, 2006
Author:
Read this thorough recent evaluation of the treatment effects for neurodegenerative diseases by MRI and MRS taken from the recent special issue of NMR in Biomedicine, entitled "MR and Drug Development".
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Nanoparticles sharpen fMRI
Date: Oct 1, 2006
Author: David Bradley
New molecular tools are being developed by researchers at Massachusetts Institute of Technology that will allow functional MRI to make the transition from imaging gross properties of the brain to a fine-tuned analysis based on information flow involving cells and circuits. The new generation of nanoscale calcium contrast agents will have applications in understanding learning, memory, and behaviour, according to the MIT team.
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Persistent consciousness?
Date: Sep 12, 2006
Author: David Bradley
Functional MRI has revealed how a patient in a persistent vegetative state seemed capable of understanding and responding to certain commands. The discovery, if proved reproducible in other patients, may lead to a greatly improved understanding of this condition, and perhaps to a novel way of communicating with PVS patients.
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