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Early ID for AD

Date: Jun 1, 2009

Author: David Bradley

New software for the automated analysis of MRI brain scans could help specialists identify cases of mild cognitive impairment years before full-blown Alzheimer's disease is apparent, according to US researchers.

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Nosologic imaging of the brain: segmentation and classification using MRI and MRSI

Date: May 27, 2009

Author:

A new technique is presented to create nosologic images of the brain using MRI and MRSI data. A nosologic image summarizes the presence of different tissues and lesions in a single image by color coding each voxel or pixel according to the histopathological class it is assigned to. The proposed technique applies advanced methods from image processing and pattern recognition to seqment and classify brain tumors, thereby representing tumor heterogeneity and class probabilities, which may help clinicians in...

Read More thumbnail image: Nosologic imaging of the brain segmentation and classification using MRI and MRSI

Image avoidance

Date: May 1, 2009

Author: David Bradley

Efforts should be made to avoid unnecessary patient exposure to imaging devices that use ionising radiation, according to a warning from the International Atomic Energy Agency. The Agency suggests that MRI and ultrasound should therefore be more widely used instead of X-ray based imaging.

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Palmar bowing of the flexor retinaculum on wrist MRI correlates with subjective reports of pain in carpal tunnel syndrome

Date: Apr 30, 2009

Author:

The pupose of this study was to investigate the utility of palmar bowing of the flexor retinaculum on magnetic resonance imaging as an adjunct to presurgical evaluation of carpal tunnel syndrome.

Read More thumbnail image: Palmar bowing of the flexor retinaculum on wrist MRI correlates with subjective reports of pain in carpal tunnel syndrome

Depressing brain scans

Date: Apr 1, 2009

Author: David Bradley

The first study of its kind has used MRI to demonstrate how changes in cortical thickness may surprisingly relate brain structure to clinical depression. The large-scale US study suggests that a thinning of the right hemisphere of the brain could be a risk factor for depression.

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Neuroimaging assessment of memory-related brain structures in a rat model of acute space-like radiation

Date: Mar 24, 2009

Author:

The pupose of this study was to investigate the acute effects on the central nervous system (CNS) of 56Fe radiation, a component of high-energy charged particles (HZE) in space radiation, using quantitative magnetic resonance imaging (MRI) noninvasively.

Read More thumbnail image: Neuroimaging assessment of memory-related brain structures in a rat model of acute space-like radiation

Propagation improves MRI

Date: Mar 1, 2009

Author: David Bradley

Swiss researchers have succeeded in exciting and imaging nuclear magnetic resonance in the human body in a way that could represent a paradigm shift for imaging.

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Assessment of metabolic changes in the striatum of a rat model of parkinsonism: an in vivo 1H MRS study

Date: Feb 24, 2009

Author:

Degeneration of the dopaminergic neurons of the substantia nigra pars compacta in Parkinson's disease induces an abnormal activation of the glutamatergic neurotransmission system within the basal ganglia network and related structures. The aim of this study was to use proton MRS to show metabolic changes in the striatum of 6-hydroxydopamine-lesioned rats, a rodent animal model of Parkinson's disease.

Read More thumbnail image: Assessment of metabolic changes in the striatum of a rat model of parkinsonism an in vivo 1H MRS study

Nano MRI

Date: Feb 1, 2009

Author: David Bradley

Researchers at IBM working with a team at Stanford University have demonstrated MRI with a volume resolution 100 million times better than possible conventional systems. The technology could herald single-cell MRI.

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Recent advances in breast MRI and MRS

Date: Jan 27, 2009

Author:

Breast MRI is an area of intense research and is fast becoming an important tool for the diagnosis of breast cancer. This review, taken from the current Breast MRI Special Issue of NMR in Biomedicine covers recent advances in breast MRI, MRS, and image post-processing and analysis.

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