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Playing tag to detect heart problems

Date: Jul 1, 2006

Author: David Bradley

Tagged MRI is challenging conventional views regarding atherosclerosis and latent heart problems in patients that otherwise appear healthy and present no symptoms. By tagging different tissue prior to a scan, researchers can obtain a detailed view of the movement and function of those tissues. Now, US researchers have investigated whether tagged MRI can reveal risk factors for cardiovascular disease before obvious symptoms occur.

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Prospective longitudinal proton magnetic resonance spectroscopic imaging in adult traumatic brain injury

Date: Jun 26, 2006

Author:

The purpose of this study was to investigate whether longitudinal magnetic resonance proton spectroscopic imaging demonstrates regional metabolite abnormalities after traumatic brain injury that predict long-term neurologic outcome.

Read More thumbnail image: Prospective longitudinal proton magnetic resonance spectroscopic imaging in adult traumatic brain injury

Nano cancer scanner

Date: Jun 1, 2006

Author: David Bradley

X-ray imaging is a very mature, although not infallible, field of medicine, but it does not lend itself to the detection of small tumours or their metastases. Now, Sangeeta Bhatia in Boston, Massachusetts and colleagues at the Harvard-MIT Division of Health Sciences and Technology hope to remedy that by using iron oxide nanoparticles to allow MRI to visualize areas of tumor invasion.

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Accelerated parallel imaging for functional imaging of the human brain

Date: May 19, 2006

Author:

Read this recent paper taken from the Special Issue of NMR in Biomedicine dedicated to parallel imaging techniques. Accelerated parallel imaging techniques have recently been applied to functional imaging experiments of the brain to improve the performance of commonly used single-shot techniques such as echo-planar imaging.

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Iron on the brain

Date: May 1, 2006

Author: David Bradley

The largest-ever study of iron accumulation in the brain has been undertaken using MRI. The study demonstrates how this technique can reveal concentration differences between regions of the brain in living patients. For the first time, gender differences in iron concentrations have been observed, according to the researchers. The results could lead to new understanding of how iron accumulation in the brain is associated with the risk of degenerative brain diseases such as Alzheimer's, Parkinson's and...

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Proton MRS of early post-natal mouse brain modifications in vivo

Date: Apr 18, 2006

Author:

The aim of thi study was to apply reliable in vivo MRS techniques for non-invasive investigations of brain development in normal and transgenic mice, by monitoring metabolite concentrations in different brain regions.

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Vestigial non-virgins

Date: Apr 1, 2006

Author: David Bradley

Ivan Pedrosa and colleagues at Harvard have demonstrated that magnetic resonance imaging can help rule out a diagnosis of acute appendicitis during pregnancy when ultrasound results are inconclusive and without resorting to the ionising radiation of a CT scan.

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fMRI studies of sensitivity and habituation effects within the auditory cortex

Date: Mar 21, 2006

Author:

The purpose of this study was to assess habituation effects in relation to field strength by fMRI at 1.5 vs. 3.0 T within the auditory cortex of healthy subjects.

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Electronic speed camera

Date: Mar 1, 2006

Author: David Bradley

A speed-trap for electrons joyriding through single crystals based on MRI can reveal their velocities and produce an image showing an electron density map of the electrons in the crystal. In a kind of cold-case re-opened, the technique provides new evidence to show that the electrons are not breaking Ohm's law.

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3D MRI monitors mutiple sclerosis symptoms in monkeys

Date: Mar 1, 2006

Author:

Experimental autoimmune encephalomyelitis (EAE) induced by myelin-oligodendrocyte glycoprotein in common marmoset monkeys is a model for multiple sclerosis.

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