专利名称：Method and device for rapid acquisition of
spin resonance data for a space-resolvedexamination of an object
发明人：Frahm, Jens, Dr.,Haase, Axel, Dr.,Matthaei,
Dieter, Dr.,Hänicke, Wolfgang,Merboldt,Klaus-Dietmar, Dr.
申请号：EP86101597.2申请日：19860207公开号：EP0191431A2公开日：19860820
专利附图：
摘要：with this flash (fast low angle shot) technique is a high frequency or
anregungspuls with a flipwinkel, much smaller than 90 degrees, and preferably in therange between 50 and 10 isonly a relatively small fraction of the constant magnetic fieldin the z - direction oriented spins in the xy plane umgeklappt and umgeklappten spins bygradientenschaltung as completely as possible to produce a gradient echoes are used.asthe main part of the spins in the z direction is oriented to the collection of echoes, canimmediately a new \\\"teilanregungspuls\\\" to influence be brought back only a smallfraction of the in z - direction oriented spins in the xy direction umklappt.through thesmall flipwinkel \\\"fraction - anregungspulse\\\" is a state of equilibrium in the occupation ofthe z - direction in accordance with a virtually inexhaustible source of spins in shortintervals and partially inspired the generation can be used.this procedure can thusgradienteninversionsverfahren with small flipwinkel and small radiofrequency power bedescribed for all field strengths of the bo field applicable.
申请人：Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
地址：Bunsenstrasse 10 D-37073 Göttingen DE
国籍：DE
代理机构：Köster, Hans-Hermann, Dipl.-Ing
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