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Tag: MRI

MRI Marker Better Predicts Progression Of Multiple Sclerosis

Atrophied brain lesion volume is the sole marker from MRI scans that can accurately predict which patients with multiple sclerosis will progress to the most severe form of the disease, new research indicates. Secondary progressive MS, known as SPMS, typically appears 10 to 20 years after the initial onset and causes more physical and cognitive […]

Monitoring Electromagnetic Signals In The Brain With MRI

Researchers commonly study brain function by monitoring two types of electromagnetism — electric fields and light. However, most methods for measuring these phenomena in the brain are very invasive. MIT engineers have now devised a new technique to detect either electrical activity or optical signals in the brain using a minimally invasive sensor for magnetic […]

Pediatric Tourette Syndrome Brain Scans Offer Clues To Disorder

Areas in the brains of children with Tourette’s syndrome have been identified that appear markedly different from the same areas in the brains of children who don’t have the neuropsychiatric disorder. Researchers at Washington University School of Medicine in St. Louis used MRIs for the finding. Tourette’s syndrome is defined by tics — involuntary, repetitive […]

Blood-brain Barrier Leakage Linked To Alzheimer’s Disease

In a new study using contrast-enhanced MRI, researchers have identified leakages in the blood-brain barrier (BBB) of people with early Alzheimer’s disease (AD). The findings suggest increased BBB permeability may be a key mechanism in the early stages of the disease. Researchers used contrast-enhanced MRI to compare 16 early AD patients with 17 healthy age-matched […]

New Class Of Molecular Tags Enhance MRI Signals 10,000-fold

A major step has been taken towards realizing a new form of MRI that could record biochemical reactions in the body as they happen. Duke University researchers report the discovery of a new class of molecular tags that enhance MRI signals by 10,000-fold and generate detectable signals that last over an hour. The tags are […]