Manganese (II) chelates
    26.
    发明授权
    Manganese (II) chelates 失效
    锰(II)螯合物

    公开(公告)号:US5155224A

    公开(公告)日:1992-10-13

    申请号:US370478

    申请日:1989-06-23

    摘要: The process of this invention for preparing Mn(II) chelate comprises forming the Mn(II) chelate by mixing manganese (II) oxide (insoluble) with an aqueous suspension comprising a molar equivalent or molar excess of the insoluble protonated chelating compound at a temperature of from 20.degree.to 50.degree. C. When the reaction is carried out with a protonated chelating agent in the absence of base, a precipitate of the protonated Mn(II) chelate is formed. A low osmolarity MN(II) chelate solution can be formed from the precipitates by dissolving them in an aqueous solution of base. When the initial chelate forming reaction is carried out in a solution containing a molar equivalent or excess of sodium hydroxide, a low osmolarity solution of the Mn(II) chelate is directly formed with most chelating agents. Preferred chelating compounds for this process include DPDP, DTPA, DCTA, EDTP, DOTA, DOXA, DO3A and EDTA. The Nm(II) chelate precipitates and low osmolarity solutions formed by the above processes are also aspects of this invention.

    摘要翻译: 本发明制备Mn(II)螯合物的方法包括通过将锰(II)氧化物(不溶性)与包含摩尔当量或摩尔过量的不溶性质子化螯合化合物的水悬浮液在温度下混合形成Mn(II)螯合物 为20〜50℃。当不存在碱时,用质子化螯合剂进行反应时,形成质子化的Mn(II)螯合物的沉淀物。 通过将沉淀物溶解在碱的水溶液中,可以从沉淀物形成低摩尔渗透浓度的MN(II)螯合溶液。 当初始螯合物形成反应在含有摩尔当量或过量氢氧化钠的溶液中进行时,Mn(II)螯合物的低渗透压溶液与大多数螯合剂直接形成。 用于该方法的优选螯合化合物包括DPDP,DTPA,DCTA,EDTP,DOTA,DOXA,DO3A和EDTA。 通过上述方法形成的Nm(II)螯合物沉淀物和低摩尔渗压浓度溶液也是本发明的一个方面。

    Methods for detecting blood perfusion variations by magnetic resonance
imaging
    29.
    发明授权
    Methods for detecting blood perfusion variations by magnetic resonance imaging 失效
    通过磁共振成像检测血液灌注变异的方法

    公开(公告)号:US5494655A

    公开(公告)日:1996-02-27

    申请号:US306221

    申请日:1994-09-14

    摘要: The invention provides a method of monitoring the vasodilatory or vasoconstrictive effects of a physiologically active substance administered to a human or non-human animal body, said method comprising the steps of: administering said substance into said body; administering into the systemic vasculature of said body a contrast enhancing amount of an intravascular paramagnetic metal containing magnetic resonance imaging contrast agent; subjecting said body to a magnetic resonance imaging procedure capable of generating from magnetic resonance signals from said body a series of temporally spaced images of at least a part of said body into which said agent passes, said procedure being a fast imaging procedure having an image acquisition time of less than five seconds; and detecting temporal variations in said signals or images whereby to monitor the vasoconstriction or vasodilation induced by said substance.

    摘要翻译: 本发明提供了监测施用于人或非人动物体的生理活性物质的血管扩张或血管收缩作用的方法,所述方法包括以下步骤:将所述物质施用于所述体内; 对所述体内的系统性脉管系统施用对比度增加量的含血管内顺磁性金属的磁共振成像造影剂; 对所述身体进行磁共振成像程序,所述磁共振成像程序能够从所述身体的磁共振信号产生所述身体的至少一部分的一系列时间间隔的图像,所述过程是具有图像采集的快速成像过程 时间少于5秒; 以及检测所述信号或图像中的时间变化,从而监测由所述物质引起的血管收缩或血管舒张。

    Squid magnetometry using ferri-and ferromagnetic particles
    30.
    发明授权
    Squid magnetometry using ferri-and ferromagnetic particles 失效
    鱿鱼磁力计使用铁和铁磁颗粒

    公开(公告)号:US5496534A

    公开(公告)日:1996-03-05

    申请号:US199252

    申请日:1994-03-28

    摘要: The invention provides the use of a physiologically tolerable, particulate, free or matrix-borne, ferrimagnetic or ferromagnetic material for the manufacture of a diagnostic agent for administration into the gastrointestinal tract, the reproductive tract, the urinary tract, a closed body cavity (e.g. into the synovial fluid or the vasculature) or the musculature for magnetometric imaging of the human or non-human animal body.

    摘要翻译: PCT No.PCT / EP92 / 02254 Sec。 371日期:1994年5月28日 102(e)日期1994年5月28日PCT提交1992年9月28日PCT公布。 公开号WO93 / 05818 日期1994年4月1日。本发明提供了生理上可耐受的,颗粒状,游离的或基质载体的亚铁磁性或铁磁性材料用于制造用于施用于胃肠道,生殖道,尿道 ,闭合的体腔(例如进入滑液或脉管系统)或用于人或非人动物体的磁力计成像的肌肉组织。