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Sense and sensibility: Olfaction and anxiety

Date: Oct 1, 2013

Author: David Bradley

US researchers have used functional magnetic resonance imaging (fMRI) to prize open the lid of the olfactory black box and to take a sniff, not at how odour evokes emotions, but at how emotions such as anxiety can "rewire" the brain so that our perception of particular scents changes, perhaps giving the smell of a lover's hair the odour of freshly discarded socks at times of stress.

Read More thumbnail image: Sense and sensibility Olfaction and anxiety

Journal Highlight: Body MRI artifacts in clinical practice: A physicist's and radiologist's perspective

Date: Sep 23, 2013

Author: spectroscopyNOW

This review promotes understanding of the artifacts which occur in MRI exams due to the high information content, so that they can be prevented or properly interpreted to optimize diagnostic effectiveness.

Read More thumbnail image: Journal Highlight Body MRI artifacts in clinical practice A physicists and radiologists perspective

Explosive model: MRI mathematics pinpoints bombs

Date: Sep 1, 2013

Author: David Bradley

A three-dimensional model of the Earth's crust and the mantle beneath it can be analysed using the same equations as are used to analyse and interpret magnetic resonance data for display of an MRI. Instead of revealing the presence of a brain tumour or damaged tissues following injury the equations can be used to illuminate the material properties of the Earth's interior which can help to reveal the precise locations of explosions across the globe.

Read More thumbnail image: Explosive model MRI mathematics pinpoints bombs

Journal Highlight: A pilot functional MRI study of the effects of prefrontal rTMS on pain perception

Date: Aug 26, 2013

Author: spectroscopyNOW

This exploratory pilot study used functional magnetic resonance imaging to examine the effects of left prefrontal repetitive transcranial magnetic stimulation on brain activity and pain perception.

Read More thumbnail image: Journal Highlight A pilot functional MRI study of the effects of prefrontal rTMS on pain perception

Heads up: American football collision course

Date: Aug 1, 2013

Author: David Bradley

A new measure of the effects of cranial impact in American football players can be used in conjunction with magnetic resonance imaging (MRI) and neurological testing to assess the cumulative effect on players before and after the American football season.

Read More thumbnail image: Heads up American football collision course

Journal Highlight: Inorganic nanocrystals as contrast agents in MRI: synthesis, coating and introduction of multifunctionality

Date: Jul 22, 2013

Author: spectroscopyNOW

Methods to synthesize inorganic nanocrystals and make them biocompatible and active for MRI are reviewed, with examples of the various approaches and efforts to make them multifunctional.

Read More thumbnail image: Journal Highlight Inorganic nanocrystals as contrast agents in MRI synthesis coating and introduction of multifunctionality

Back to basics: MRI reveals spinal infection

Date: Jul 1, 2013

Author: David Bradley

Steroids are often injected into sites along the spinal column in treating back pain, but if a batch is contaminated serious infection can arise. Researchers have demonstrated that magnetic resonance imaging (MRI) at the site of injection could be used to identify fungal spinal or paraspinal infection

Read More thumbnail image: Back to basics MRI reveals spinal infection

Journal Highlight: DCE-MRI: a review and applications in veterinary oncology

Date: Jun 24, 2013

Author: spectroscopyNOW

This review summarises the derivation of the models developed to assess dynamic contrast enhanced magnetic resonance imaging (DCE-MRI), its applications to the study and treatment of human and animal cancer, and challenges in reproducibility.

Read More thumbnail image: Journal Highlight DCE-MRI a review and applications in veterinary oncology

Aging enzyme: MRI reveals depressing link

Date: Jun 1, 2013

Author: David Bradley

Magnetic resonance imaging has revealed a possible protective role for the enzyme telomerase in processes associated with the development of depression in aging patients. The study investigated untreated, depressed participants and found that the size of the hippocampus, a brain structure that is critical for learning and memory, was associated with the amount of telomerase activity measured in the white blood cells.

Read More thumbnail image: Aging enzyme MRI reveals depressing link

Journal Highlight: 3T-MRI analysis of epidermis and dermis moisturizing using the T2-mapping sequence

Date: May 20, 2013

Author: spectroscopyNOW

T2-mapping in MRI has been applied to assess basal free water content of the epidermis and dermis and to search for an increase in free water content after applying a moisturizing cream.

Read More thumbnail image: Journal Highlight 3T-MRI analysis of epidermis and dermis moisturizing using the T2-mapping sequence
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