Method for optimizing infant brain T1 weighted magnetic resonance imaging
A magnetic resonance imaging and infant technology, which is applied in magnetic resonance measurement, measurement using nuclear magnetic resonance imaging system, measurement of magnetic variables, etc., to achieve the effects of short acquisition time, high isotropic resolution, and easy implementation.
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[0092] Test the optimization method of the above-mentioned infant brain T1-weighted magnetic resonance imaging. First, Philips 3T MRI scanner (Achieva; Philips Healthcare, Best, The Netherlands) was used to collect the "MIX" sequence images of the brains of 57 normally developed infants, and the spin-echo (SE) was solved by the ratio and least squares method. And the inversion recovery (IR) signal equation to obtain T1 and PD maps, respectively, and normalize the brain PD values based on the PD values of the lateral ventricles.
[0093] Manually delineate regions of interest (ROI) on T1maps, including cortical gray matter (GM) and subcortical white matter (WM), and calculate the average T1 value of subcortical white matter for each infant’s brain as a baby The average T1 value of brain white matter; calculate the average PD value of subcortical white matter as the average PD value of infant brain white matter; calculate the average T1 value of cerebral cortex ...
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