目的：研究核磁共振成像反转恢复技术中零信号点。
Objective: To study the zero signal point in the MRI inversion recovery technology.
方法：从理论上对核磁共振成像反转恢复技术进行系统研究，获得零信号点的数学表达式。
Methods: Using the MRI inversion recovery technology systemically in theory and get the mathematical expression of the zero signal point.
目的评价低场液体衰减反转恢复技术(FLA IR)和弥散成像(DWI)序列在脑部MRI应用价值。方法应用0。
Objective To explore fluid attenuated inversion recovery (FLAIR) and Diffussion-Weighted Imaging (DWI) sequence in MRI in brain.
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