The magnetization M of a small volume of matter is the sum (a vector sum) of the magnetic dipole moments in the small volume divided by that volume.
Here, we present a comprehensive in silico and in vitro validation that demonstrates the ability of this new technique to provide accurate quantitative parameters characterizing the statistical distribution of temperature values in a volume of (semi- aqueous matter.
Conversely, if there is a decrease in the volume of matter within the cranium, as occurs in atrophy of the brain, the CSF compensates with an increase in volume.
Matter has necessary existence, for though it undergoes change, the given volume of matter found in the universe persists, and as persisting matter does not have or need a cause.
A volume of interest was drawn within white matter (centrum semiovale), where the measured activity is nearly uniform, using the standard deviation of the voxel values within the volume of interest as metric for characterising image noise.
A study by an international research team has shown a correlation between frequent gaming and a greater volume of grey matter in a part of the brain linked to an internal reward system associated with addiction.
The results showed that those who walked at least 72 blocks - six to nine miles - a week had a greater volume of grey matter.
After induction of experimental hydrocephalus and ventriculo-peritoneal shunting in dogs, recovery of ventricular size and gross configuration of the brain was observed mainly as a result of an increased volume of white matter due to regeneration of myelin sheaths [ 12].
Indeed, we previously reported that a smaller volume of grey matter in the left orbitofrontal cortex correlated strongly with the subjective severity of insomnia, but not at all with its duration.
Type 2 diabetes was associated with a smaller volume of grey matter (−21.8 ml; 95% CI −34.2, −9.4) and with larger lateral ventricle volume (7.1 ml; 95% CI 2.3, 12.0) and with larger white matter lesion volume (56.5%; 95% CI 4.0, 135.8), whereas white matter volume was not affected.
