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Diffusion tensor imaging (DTI) is a magnetic resonance imaging technique that enables the measurement of the restricted diffusion of water in tissue in order to produce neural tract images instead of using this data solely for the purpose of assigning contrast or colors to pixels in a cross-sectional image.
Anterior cerebral artery syndrome is a condition whereby the blood supply from the anterior cerebral artery (ACA) is restricted, leading to a reduction of the function of the portions of the brain supplied by that vessel: the medial aspects of the frontal and parietal lobes, basal ganglia, anterior fornix and anterior corpus callosum.
Cerebral infarction, also known as an ischemic stroke, is the pathologic process that results in an area of necrotic tissue in the brain (cerebral infarct). [1] In mid to high income countries, a stroke is the main reason for disability among people and the 2nd cause of death. [2]
Middle cerebral artery syndrome is a condition whereby the blood supply from the middle cerebral artery (MCA) is restricted, leading to a reduction of the function of the portions of the brain supplied by that vessel: the lateral aspects of frontal, temporal and parietal lobes, the corona radiata, globus pallidus, caudate and putamen.
PNNs, with their strongly negative charge, may serve as cation exchangers preventing the free diffusion of potassium or sodium ions. Due to the spatial, temporal, and numerical disproportions between Na + influx and K + efflux, the PNN provides a possible buffering system for extracellular cations. However, this hypothesis has yet to be proven.
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A high score corresponds to a greater risk of stroke, while a low score corresponds to a lower risk of stroke. The CHADS 2 score is simple and has been validated by many studies. [ 2 ] In clinical use, the CHADS 2 score (pronounced "chads two") has been superseded by the CHA 2 DS 2 -VASc score ("chads vasc" [ 3 ] ), which gives a better ...
The first study of the human brain at 3.0 T was published in 1994, [13] and in 1998 at 8 T. [14] Studies of the human brain have been performed at 9.4 T (2006) [15] and up to 10.5 T (2019). [16] Paul Lauterbur and Sir Peter Mansfield were awarded the 2003 Nobel Prize in Physiology or Medicine for their discoveries concerning MRI.