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    • 1. 发明授权
    • Contrast media
    • 对比媒体
    • US06448442B1
    • 2002-09-10
    • US09560142
    • 2000-04-28
    • Torsten AlmenFredrik Ek
    • Torsten AlmenFredrik Ek
    • C07C23303
    • A61K49/0433C07C235/16C07C237/20C07C237/22C07C237/46
    • The invention provides low viscosity iodinated aryl compounds, useful as X-ray contrast agents of formula I wherein n is 0 or 1, and where n is 1 each C6R5 moiety may be the same or different; X denotes a bond or a group providing a 1 to 7 atom chain linking two C6R5 moieties or, where n is 0, X denotes a group R; each group R is a hydrogen atom, an iodine atom or a hydrophilic moiety M or M1, two or three non-adjacent R groups in each C6R5 moiety being iodine and at least one R group in each C6R5 moiety being an M or M1 moiety; each M which may be the same or different, is a non-ionic hydrophilic moiety; and each M1 independently represents a —CHOHCON(R1)2 group wherein each R1, which may be the same or different, is a hydrogen atom, an OH group or a C1-6 alkoxy or optionally hydroxylated C1-5 alkyl group; at least one R group in the molecule being an M1 moiety; and isomers thereof.
    • 本发明提供低粘度碘化芳基化合物,其可用作式I的X射线造影剂,其中n为0或1,并且其中n为1,每个C 6 R 5部分可以相同或不同; X表示键或提供连接两个C 6 R 5部分的1至7个原子链的基团,或其中n为0,X表示基团R; 每个基团R是氢原子,碘原子或亲水部分M或M1,每个C 6 R 5部分中两个或三个不相邻的R基团是碘,并且每个C 6 R 5部分中至少一个R基团是M或M1部分; 每个M可以相同或不同,是非离子亲水部分; 并且每个M1独立地表示-CHOHCON(R1)2基团,其中每个可以相同或不同的R 1是氢原子,OH基团或C 1-6烷氧基或任选羟基化的C 1-5烷基; 分子中至少一个R基团是M1部分; 及其异构体。
    • 3. 发明授权
    • Aminopolycarboxylic acids and derivatives thereof for magnetic resonance
imaging
    • 氨基多羧酸及其衍生物用于磁共振成像
    • US5419893A
    • 1995-05-30
    • US5628
    • 1993-01-19
    • Arne BergTorsten AlmenJo KlavenessPal RongvedTerje Thomassen
    • Arne BergTorsten AlmenJo KlavenessPal RongvedTerje Thomassen
    • A61K49/00A61K47/48A61K49/04A61K51/00A61K51/04C07C227/18C07C229/16C07C229/22C07C229/76C07C237/06C07D257/02C07D273/00C07D285/00C07F5/00C07F11/00C07F15/02C09K3/00A61B5/055
    • A61K51/0482A61K47/48076A61K51/0478C07D257/02C07D273/00C07D285/00C07F5/003Y10S514/836Y10T436/24
    • There are provided chelating agents particularly useful for the preparation of diagnostic and therapeutic agents for magnetic resonance imaging, scintigraphy, ultrasound imaging, radiotherapy and heavy metal detoxification, said agents being compounds of formula IX--CHR.sub.1 NZ--(CHR.sub.1).sub.n --A--(CHR.sub.1).sub.m --NZ--CHR.sub.1 --X (I)(wherein each of the groups Z is a group --CHR.sub.1 X or the groups Z together are a group --(CHR.sub.1).sub.q --A'--(CHR.sub.1).sub.r --, where A' is an oxygen or sulphur atom or a group --N--Y;A is a group --N--Y or A--(CHR.sub.1).sub.m -- represents a carbon-nitrogen bond or, when the groups Z together are a group --(CHR.sub.1).sub.q --A'--(CHR.sub.1).sub.r --, A may also represent an oxygen or sulphur atom;each Y, which may be the same or different, is a group --(CHR.sub.1).sub.p --N(CHR.sub.1 X).sub.2 or a group --CHR.sub.1 X;each X, which may be the same or different, is a carboxyl group or a derivative thereof or a group R.sub.1 ;each R.sub.1, which may be the same or different, is a hydrogen atom, a hydroxyalkyl group or an optionally hydroxylated alkoxy or alkoxyalkyl group;n,m,p,q and r are each 2,3 or 4; with the provisos that at least two nitrogens carry a --CHR.sub.1 X moiety wherein X is a carboxyl group or a derivative thereof, that each --CHR.sub.1 X moiety is other than a methyl group, and that unless A' is oxygen or sulphur or A is N--(CHR.sub.1).sub.p --N(CHR.sub.1 X).sub.2 at least one R.sub.1 is other than hydrogen) and salts thereof.
    • 提供了特别可用于制备用于磁共振成像,闪烁扫描,超声成像,放射治疗和重金属解毒的诊断和治疗剂的螯合剂,所述药剂是式I X-CHR1NZ-(CHR1)nA-(CHR1) m-NZ-CHR1-X(I)(其中基团Z为基团-CHR1X或基团Z一起为基团 - (CHR 1)q -A' - (CHR 1) - ,其中A'为 氧或硫原子或基团-NY; A是基团-NY或A-(CHR1)m-表示碳 - 氮键,或者当基团Z一起为 - (CHR 1)q-A' - ( CHR1)r-,A也可以表示氧或硫原子;每个Y可以相同或不同,是基团 - (CHR1)pN(CHR1X)2或基团-CHR1X;每个X可以是 相同或不同的是羧基或其衍生物或基团R 1;每个R 1可以相同或不同,是氢原子,羟烷基或任选羟基化的烷氧基或烷氧基烷基; n,m, p,q和r 分别为2,3或4; 条件是至少两个氮原子携带-CHR1X部分,其中X是羧基或其衍生物,每个-CHR1X部分不是甲基,除非A'是氧或硫或A是N- (CHR1)pN(CHR1X)2,至少一个R1不是氢)及其盐。
    • 4. 发明授权
    • X-Ray fluorescence analyzers
    • X射线荧光分析仪
    • US4573181A
    • 1986-02-25
    • US455842
    • 1983-01-05
    • Thomas GronbergTorsten AlmenKlaes GolmanSoren MattssonStaffan Sjoberg
    • Thomas GronbergTorsten AlmenKlaes GolmanSoren MattssonStaffan Sjoberg
    • G01N23/223H01J37/252G01N23/22
    • G01N23/223G01N2223/076
    • An apparatus for determining the content of an element having an atomic number higher than 47, in a sample volume, in particular for determining the concentration of an X-ray contrast agent in vivo, employs a radiation source for such excitation of the element in the sample volume with collimated radiation that the element emits its characteristic X-ray radiation. An NaI(T1) scintillation detector is directed towards the sample volume for receiving X-ray radiation therefrom at an angle of from 90.degree. to 135.degree. in relation to the excitation radiation. Both the energy of Copton-scattered photons in the sample and the difference between this energy and 28.5 KeV must be clearly distinguished from the characteristic energy of the element concerned. A first single-channel analyzer registers the number of pulses of the detector within a predetermined energy interval about the energy value for the characteristic X-ray radiation of the element concerned, and two further single-channel analyzers register the number of pulses at the limits of the interval mentioned. A calculating unit in the form of computer determines the background radiation in the interval mentioned using the two latter pulse numbers, and determines the content of the element concerned from the difference between the pulse number of the first analyzer and the pulse number representing the background radiation.
    • 用于确定样品体积中具有高于47的原子序数的元素的含量的装置,特别是用于确定体内X射线造影剂的浓度的装置,采用这种激发元素的辐射源 具有准直辐射的样品体积,该元件发射其特征X射线辐射。 NaI(T1)闪烁检测器指向样品体积,以相对于激发辐射以90°至135°的角度从其接收X射线辐射。 样品中康普顿散射光子的能量和该能量与28.5KeV之间的差异必须与相关元件的特征能量明确区分开。 第一个单通道分析仪将关于有关元件的特征X射线辐射的能量值的检测器的脉冲数量记录在预定的能量间隔内,另外两个单通道分析器将限制的脉冲数 的间隔时间。 以计算机形式的计算单元确定使用后两个脉冲数的所述间隔中的背景辐射,并且根据第一分析仪的脉冲数与表示背景辐射的脉冲数之间的差确定相关元素的内容 。