MRI Spectroscopy / Ezine
Evolutionary revelations: Positively not rhesus
Date: Mar 1, 2013
Author: David Bradley
Functional magnetic resonance imaging (fMRI) studies have demonstrated that humans have at least two functional networks in the brain's cerebral cortex that are not present in our relatively close relative, the rhesus monkey. The findings suggest that this characteristic of the human brain emerged some time during the evolutionary process between our primate ancestor and modern humans was probably not present in an ancestor common to rhesus monkeys and humans.
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Journal Highlight: Hyperpolarized 129Xe MRI of the human lung
Date: Feb 25, 2013
Author: spectroscopyNOW
The replacement of 3He by 129Xe as an MRI contrast agent is discussed with special reference to the evaluation of pulmonary structure and function.
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Martian metabolism: The rise and fall of salt
Date: Feb 1, 2013
Author: David Bradley
An MRI study of members of the Russian "Mars500" mission by Jens Titze and colleagues has looked at how the volunteers' sodium levels change in cycles lasting a week or even a month. The study published in the journal Cell Metabolism, suggests that the conventional wisdom regarding excretion of sodium keeping levels constant in the body ought to be revised.
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Journal Highlight: Adherence to MRI protocol consensus guidelines in multiple sclerosis: An Australian multi-centre study
Date: Jan 28, 2013
Author: spectroscopyNOW
MRI studies performed on Australians presenting with a first clinical diagnosis of central nervous system demyelination were reviewed for adherence to published guidelines and the practical implementation of recently updated multiple sclerosis guidelines was discussed.
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Cradle to grave: Brain scanning
Date: Jan 7, 2013
Author: David Bradley
Structural changes in the brain revealed by magnetic resonance imaging are tied to common gene variants linked to disorders such as Alzheimer's disease, schizophrenia, and autism and can be observed in brain scans of newborn infants.
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Journal Highlight: The use of magnetic resonance imaging in evaluating horses with spinal ataxia
Date: Dec 19, 2012
Author: spectroscopyNOW
Horses with spinal ataxia underwent clinical and neurologic examinations, cervical radiographs, euthanasia and MRI of the cervical spine and necropsy to determine the accuracy of MRI for diagnosing cervical stenotic myelopathy in horses.
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Cognitive integrity: MRI reveals benefits
Date: Dec 1, 2012
Author:
A study using magnetic resonance imaging (MRI) shows that mental activities like reading and writing can preserve structural integrity in the brains of older people. Details were reported at the annual meeting of the Radiological Society of North America (RSNA).
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Journal Highlight: Vascular space occupancy MRI during breathholding at 3 Tesla
Date: Nov 26, 2012
Author: spectroscopyNOW
The vasodilatory response of normal human brain and meningiomas under repeated breathholding challenges was evaluated using vascular space occupancy MRI at 3 Tesla.
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Mind mapping: White's what matters
Date: Nov 1, 2012
Author: David Bradley
Researchers in Europe have used an advanced MRI technique to build the first atlas of the microstructure of the white-matter of the human brain. The project has the potential to revolutionise neuroscience, medicine and our understanding of the human brain in the coming decade.
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Journal Highlight: MRI acoustic noise can harm experimental and companion animals
Date: Oct 22, 2012
Author: spectroscopyNOW
The equivalent loudness and exam duration experienced by several experimental and companion animals, commonly subjects of MRI scans, have been compared to safe noise standards set by the NIOSH.
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