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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.

Read More thumbnail image: Gigapixel software zoom and enhance for MRI

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.

Read More thumbnail image: Implementation of spin-echo blood oxygen level-dependent BOLD functional MRI in birds

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.

Read More thumbnail image: Noble heat mapping - Xenon plays role in new MRI thermometry

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.

Read More thumbnail image: Real-time MRI at a resolution of 20 ms

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.

Read More thumbnail image: Dollar signs switch on brain

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.

Read More thumbnail image: Quantification of human body fat tissue percentage by MRI

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.

Read More thumbnail image: MRI monitors anticancer nanotubes

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.

Read More thumbnail image: Age- and sex-related differences in muscle phosphocreatine and oxygenation kinetics during high-intensity exercise in adolescents and adults

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.

Read More thumbnail image: It is brain surgery

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...

Read More thumbnail image: NMR metabolic profile of human follicular fluid
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