MRI Spectroscopy / Ezine
Gigapixel software: 'zoom and enhance' for MRI
Date: Nov 1, 2010
Author: David Bradley
Computer scientists at the University of Utah have developed software that can generate rapid previews of super-high resolution images for medical, astronomical, and other applications. Images containing billions to hundreds of billions of pixels drain computer resources rapidly but a new technique for analysing the data could allow gigapixel MRI scans and other images to be previewed and manipulated much more easily than is currently possible.
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Implementation of spin-echo blood oxygen level-dependent (BOLD) functional MRI in birds
Date: Oct 28, 2010
Author:
This study shows that spin-echo functional MRI is a viable approach to investigate auditory processing in small songbirds. Its whole-brain coverage opens up new perspectives and should allow the investigation of regions beyond the primary and secondary auditory regions. Because of its relative acoustic quietness, the sequence used could also be relevant to the study of auditory processes in other small animals.
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Noble heat mapping - Xenon plays role in new MRI thermometry
Date: Oct 1, 2010
Author: David Bradley
Hyperpolarized xenon can be used as an MRI temperature sensor, according to researchers in Germany and the US. Their new approach to MRI thermometry uses encaged xenon atoms and enables unprecedented accuracy of 0.1 degrees Clsiu at low and ultralow sensor concentrations. The technique might be used in clinical diagnostics and therapy monitoring.
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Real-time MRI at a resolution of 20 ms
Date: Sep 28, 2010
Author:
In this paper, published in NMR in Biomedicine, the authors describe a unique method for real-time MRI that reduces image acquisition times to only 20 ms.
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Dollar signs switch on brain
Date: Sep 1, 2010
Author: David Bradley
Functional magnetic resonance imaging has revealed a region of the brain about two inches above the left eyebrow that lights up whenever a person anticipating a reward for a task performed successfully is shown a dollar sign. The response is linked to dopamine release in response to pre-determined cues of which a symbol for money is one.
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Quantification of human body fat tissue percentage by MRI
Date: Aug 18, 2010
Author:
In this paper, a novel comprehensive and automatic analysis method for the determination and quantification of subcutaneous fat tissue and visceral fat tissue volumes either in the whole human body or in selected slices or regions of interest is shown.
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MRI monitors anticancer nanotubes
Date: Aug 1, 2010
Author: David Bradley
Magnetic resonance imaging can now be used to monitor carbon nanotubes aimed at destroying tumour cells by laser induced heating, according to US researchers.
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Age- and sex-related differences in muscle phosphocreatine and oxygenation kinetics during high-intensity exercise in adolescents and adults
Date: Jul 26, 2010
Author:
The aim of this investigation was to examine the adaptation of the muscle phosphates implicated in regulating oxidative phosphorylation, and oxygenation at the onset of high intensity exercise in children and adults.
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It is brain surgery
Date: Jul 1, 2010
Author: David Bradley
MRI allows surgeons to safely and effectively operate inside the human brain through small incisions in the natural creases of the eyelid rather than drilling through skull to get to the grey matter at the front of the brain.
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NMR metabolic profile of human follicular fluid
Date: Jun 28, 2010
Author:
The metabolic profiles of human follicular fluid samples that were obtained using NMR spectroscopy are analysed in this work. High correlations were found between important intermediaries of the energetic metabolic pathways of the follicle which can indicate the importance of these pathways in oocyte development. Some of these identified metabolites might be useful as biomarkers of the follicle maturation state, allowing the selection of oocytes in order to increase the pregnancy rates in women after in...
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