All articles tagged with #mri technology
Researchers at the University of Rochester used physics-informed AI to analyze MRI data, revealing that the brain's waste-clearing fluid moves 50 times slower through deep tissue than in open spaces. This discovery clarifies how the glymphatic system operates during sleep and could eventually lead to clinical screening for Alzheimer's and brain injuries.
A study using advanced 7 Tesla MRI scans found that certain parts of the brain, specifically layers five and six of the sensory cortex, tend to shrink with age, while layer four actually enlarges in healthy older adults, challenging previous beliefs that the brain uniformly degenerates with age. These changes may influence sensory sensitivity and cognitive flexibility in aging, and are shaped by lifestyle and experience, with some evidence of compensatory mechanisms in older brains.
Researchers have used NMR methods, similar to MRI technology, to analyze rare wooden structures from an ancient Roman harbor discovered in Naples, Italy. These non-invasive techniques allow for detailed examination of the wood's structure and preservation without damaging the samples, which have been preserved by an aquifer for centuries. The study, published in Physical Chemistry Chemical Physics, highlights the potential of NMR in archaeology and other fields, with future applications expected to expand as the technology becomes more portable and affordable.
Researchers from Massachusetts General Hospital and Boston Children’s Hospital have identified a brain network, termed the "default ascending arousal network" (DAAN), crucial for human consciousness using ultrahigh-resolution MRI technology. This discovery, published in Science Translational Medicine, could significantly advance the understanding of consciousness and aid in treating neurological disorders. The DAAN integrates arousal and awareness, with the ventral tegmental area (VTA) playing a central role. Further research and clinical trials are underway to confirm these findings and explore their potential in restoring consciousness in patients with severe brain injuries.
LSU chemical engineering professor, Jimmy Lawrence, has been awarded a $2 million grant from the National Institutes of Health (NIH) to develop safer MRI technology. Lawrence's project aims to create metal-free contrast agents that provide more accurate monitoring of damaged blood vessels and tumors, replacing current gadolinium-based agents that can cause discomfort or poisoning. This development could lead to improved diagnosis accuracy, lower healthcare costs, and represents a milestone for LSU's Cain Department of Chemical Engineering.