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MRI

Image:  Brain perfusion: Red indicates low perfusion, yellow indicates high perfusion. Overall, the brain perfusion is similar between all three groups (see article). The most prominent difference is present in the posterior cingulate cortex (indicated by the arrow), a region close to the midline in the superior and posterior part of the brain. Control participants who remain stable have higher perfusion as compared to deteriorating controls and MCI (Photo courtesy of RSNA the Radiological Society of North America).

Arterial Spin Labeling MRI Identifies Evidence of Cognitive Decline Before Symptoms Present

A type of magnetic resonance imaging technology is being used to identify signs of cognitive decline in the brain even before symptoms appear. The technique has the potential to be used as a biomarker in very early diagnosis of preclinical dementia.  More...
16 Oct 2014
Image: University of Nottingham’s Amelia Draper, one of the researchers who found by utilizing magnetic resonance spectroscopy (MRS) that the brain plays a vital role in controlling the involuntary movements and vocal tics associated with Tourette syndrome (Photo courtesy of the University of Nottingham).

MR Spectroscopy Reveals Brain Chemical May Help in Managing Tourette Syndrome Tics

A chemical in the brain plays a vital role in controlling the involuntary movements and vocal tics associated with Tourette syndrome, a new imaging study has shown.   More...
09 Oct 2014

Gray Matter Volume in Brain Region Can Predict Risk Tolerance

Using whole-brain analysis, scientists discovered that the gray matter volume of a region in the right posterior parietal cortex of the brain was significantly predictive of individual risk attitudes. Men and women with higher grey matter volume in this region exhibited less risk aversion. The findings may clarify why risk tolerance decreases with age.   More...
09 Oct 2014
Image: St. Jude Medical announced CE marking approval of updated labeling for its Tendril STS and IsoFlex Optim pacemaker leads (Photo courtesy of St. Jude Medical).

Patient Access to MRI Scans Expanded with CE Marking Approval for Pacemaker Leads

New pacemaker leads have received CE marking approval, allowing existing and future patients with the devices access to magnetic resonance imaging scans in Europe.   More...
08 Oct 2014
Image: The study by Kep Kee Loh and Dr. Ryota Kanai found that gray-matter density in the highlighted region of the brain (anterior cingulate cortex) in MR images was negatively associated with the amount of media multitasking activity (Photo courtesy of the University of Sussex).

fMRI Neuro Scans Reveal Gray Matter Disparities in Media Devices Multitaskers

By simultaneously using laptops, cell phones, and other media devices, people could be changing their brain structure. A study reveals that individuals who frequently use several media devices used concurrently have lower gray-matter density in one specific region of the brain compared to those who use just one device occasionally.  More...
07 Oct 2014

MRI Technology Enables Noninvasive Monitoring of Emergent Cell Therapies

Cellular therapeutics, the application of using intact cells to treat and cure disease, is an important potential new therapeutic application, but it is hampered by the inability of clinicians and scientists to effectively monitor the destination, movements, and perseverance of these cells in patients without having to use invasive procedures, such as tissue sampling.   More...
07 Oct 2014
Image: The CIRS model 603A MRI distortion phantom is designed for stereotactic radiosurgery (Photo courtesy of CIRS).

Phantom Developed for MRI Distortion Assessment in Stereotactic Radiosurgery Treatment Planning

A phantom for evaluating MRI distortion in stereotactic radiosurgery planning enables assessment of image distortion in treatment-planning systems.   More...
07 Oct 2014
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MedImaging's MRI channel in addition to reporting on MR hardware, informs about the many magnetic resonance applications possible with the technique notably MRI, fMRI, diffusion MRI, MR angiography, MR guided surgery, in addition to industry developments, and safety issues.