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Fluid-attenuated inversion recovery (FLAIR) is a magnetic resonance imaging sequence with an inversion recovery set to null fluids. For example, it can be used in brain imaging to suppress cerebrospinal fluid (CSF) effects on the image, so as to bring out the periventricular hyperintense lesions, such as multiple sclerosis (MS) plaques. [ 1 ]
Inversion recovery is a magnetic resonance imaging sequence that provides high contrast between tissue and lesion. It can be used to provide high T1 weighted image, high T2 weighted image, and to suppress the signals from fat , blood , or cerebrospinal fluid (CSF).
Saturation recovery sequences are rarely used, but can measure spin-lattice relaxation time (T1) more quickly than an inversion recovery pulse sequence. [ 63 ] Double-oscillating-diffusion-encoding (DODE) and double diffusion encoding (DDE) imaging are specific forms of MRI diffusion imaging, which can be used to measure diameters and lengths ...
This measure is frequently corrupted by noise from various sources; hence, statistical procedures are used to extract the underlying signal. The resulting brain activation can be graphically represented by color-coding the strength of activation across the brain or the specific region studied.
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The script for Brainscan had initially been written in 1987 by Andrew Kevin Walker and originally was centered around a VHS tape, however after producer Michael Roy acquired the script he performed some uncredited re-writes turning the tape into an interactive CD-ROM video game in order to tap into the public fascination with virtual reality. [2]