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Heat causes electrons to move around and distort the current in the fMRI detector, producing thermal noise. Thermal noise rises with the temperature. It also depends on the range of frequencies detected by the receiver coil and its electrical resistance. It affects all voxels similarly, independent of anatomy. [56]
Modern 3 Tesla clinical MRI scanner.. Magnetic resonance imaging (MRI) is a medical imaging technique mostly used in radiology and nuclear medicine in order to investigate the anatomy and physiology of the body, and to detect pathologies including tumors, inflammation, neurological conditions such as stroke, disorders of muscles and joints, and abnormalities in the heart and blood vessels ...
Functional magnetic resonance imaging data. Functional neuroimaging is the use of neuroimaging technology to measure an aspect of brain function, often with a view to understanding the relationship between activity in certain brain areas and specific mental functions.
100 metres world record progression may refer to: Men's 100 metres world record progression; Women's 100 metres world record progression This page was last edited ...
In single-voxel fMRS the selection of the volume of interest (VOI) is often done by running a functional magnetic resonance imaging (fMRI) study prior to fMRS to localize the brain region activated by the task. Single-voxel spectroscopy requires shorter acquisition times; therefore it is more suitable for fMRS studies where high temporal ...
Teenager Pan Zhanle swam the fastest 100 meters in history as he led off China's gold medal-winning 4x100 freestyle relay team. This morning (in heats), the U.S.,
The following progression of low-altitude records therefore starts with Hines's low-altitude "record" when the IAAF started to recognise only electronic timing in 1977, and continues to Lewis's low-altitude performance that equalled the high-altitude world record in 1987. (Ben Johnson's 9.95 run in 1986 and 9.83 run in 1987 are omitted.)
The makeup of the mixed 4x400-meter relay team was a source of intrigue leading up to Friday because of the possibility that 16-year-old phenom Quincy Wilson could make his Olympic debut.Wilson is ...