DE882894C - Radioactive contrast medium - Google Patents

Radioactive contrast medium

Info

Publication number
DE882894C
DE882894C DESCH5826A DESC005826A DE882894C DE 882894 C DE882894 C DE 882894C DE SCH5826 A DESCH5826 A DE SCH5826A DE SC005826 A DESC005826 A DE SC005826A DE 882894 C DE882894 C DE 882894C
Authority
DE
Germany
Prior art keywords
radioactive
contrast medium
compounds
halogen
iodine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DESCH5826A
Other languages
German (de)
Inventor
Heinz Dr Oeser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Pharma AG
Original Assignee
Schering AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schering AG filed Critical Schering AG
Priority to DESCH5826A priority Critical patent/DE882894C/en
Application granted granted Critical
Publication of DE882894C publication Critical patent/DE882894C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/04X-ray contrast preparations
    • A61K49/0433X-ray contrast preparations containing an organic halogenated X-ray contrast-enhancing agent
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K51/00Preparations containing radioactive substances for use in therapy or testing in vivo
    • A61K51/02Preparations containing radioactive substances for use in therapy or testing in vivo characterised by the carrier, i.e. characterised by the agent or material covalently linked or complexing the radioactive nucleus
    • A61K51/04Organic compounds

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

Description

Radioaktives Röntgenkontrastmittel Eine Reihe von organischen Halogenverhindungen, inshesondere Jodverbindungen, von physiologischer Indifferenz sind als gute Kontrastmittel zur röntgenologischen Sichtbarmachung von Körperorganen, wie der Galle, Niere u. dgl., bekannt (vgl. z. B. die deutschen Patentschriften 454641, 704549 7016 938, 739 634, 5o6 425, 5312 766, 659 496, 545 916, 553 823, 579 22ßj. Bei diesen Kontrastmitteln konnte man bisher die fortschreitende Resorption, Verteilung und Anreicherung in den Organen des Körpers nur durch Serienaufuahmen von Röntgenhildern zu verschiedenen Zeiten fest-. stellen, also durch ein Verfahren, welches Zeit und Kosten beanspruchte. Außerdem war es dabei nicht möglich festzustellen, ob nicht eine geringe Menge des Halogens in organischer Bindung oder in freiem Zustand zu Organen abgewandert war, in denen seine Anwesenheit nicht erwünscht war, z. B. in die Schilddrüse.Radioactive X-ray contrast medium A range of organic halogen compounds, Iodine compounds in particular, of physiological indifference, are good contrast media for radiological visualization of body organs, such as the bile, kidney and the like. Like., known (see, for example, German patents 454641, 704549 7016 938, 739 634, 5o6 425, 5312 766, 659 496, 545 916, 553 823, 579 22ßj. With these contrast media So far one could see the progressive absorption, distribution and accumulation in the organs of the body only by taking a series of X-ray images Fixed times. through a process that took time and money. In addition, it was not possible to determine whether a small amount of the Halogen in organic bonds or in the free state had migrated to organs, where his presence was not wanted, e.g. B. in the thyroid.

Es wurde nun gefunden, daß man die Resorption, Verteilung und Anreicherung solcher organischen Halogenverbindungen in den Organen des Körpers einwandfrei beobachten kann, wenn man als Kontrastmittel solche organischen Halogenverbindungen verwendet, die radioaktives Halogen, vorzugsweise radioaktives Jod, enthalten. Nach Verabreichung des Kontrastmittels kann mit Hilfe geeigneter Geräte, z. B. durch Messung der Impulse mittels des Geiger-Müller-Gerätes, die Resorption. It has now been found that absorption, distribution and accumulation can be achieved Observe such organic halogen compounds in the organs of the body properly can, if such organic halogen compounds are used as contrast media, which contain radioactive halogen, preferably radioactive iodine. After administration the contrast agent can be carried out with the help of suitable equipment, e.g. B. by measuring the pulses by means of the Geiger-Müller device, the resorption.

Verteilung und Konzentration der Halogenver bindungen in den Körperorganen verfolgt und der günstigste Zeitpunkt für die Röntgenaufnahme gefunden werden. Außerdem werden bei Anwendung dieser Kontrastmittel durch Bestimmung der Geschwindigkeit der Anreicherung und des Verschwindens der Aktivität in den Organen wichtige .Äufschlüsse über die Funktion derselben, besonders der Niere und der Leber erhalten.Distribution and concentration of Halogenver compounds in the body organs tracked and the most convenient time for the X-ray to be found. aside from that are determined when using this contrast agent by determining the speed important conclusions about the accumulation and disappearance of the activity in the organs about the function of the same, especially of the kidneys and liver.

Die Herstellung der beanspruchten Röntgenkontrastmittel erfolgt auf die zur Einführung von radioaktiven Halogen, vorzugsweise radioaktivem Jod, in organische Verbindungen üblicher Weise, insbesondere dadurch, daß dem Halogenierungsmittel radioaktives Halogen in einer solchen Menge zugesetzt wird, daß die erhaltene Halogenverbinidung je nach dem Verwendungszweck eine Aktivität von etwa 25 bis 220 µ C je Gramm Substanz entwickelt. The claimed X-ray contrast media are produced on those for introducing radioactive halogen, preferably radioactive iodine, into organic Compounds in the usual manner, especially in that the halogenating agent radioactive halogen is added in such an amount that the halogen compound obtained Depending on the intended use, an activity of about 25 to 220 µC per gram of substance developed.

Das radioaktive Halogen kann nach verschiedenen, an sich bekannten Verfahren hergestellt werden, z. B. kann man radioaktives Jod aus radioaktivem Jodkalium erhalten, indem es aus diesem in üblicher Weise durch Jodat frei gemacht wird. Da es sich jeweils um Bruchteile eines Milligramms von zur Reaktion benötigten Jodisotopen handelt, braucht dieser Zusatz bezüglich der stöchiometrischen Verhältnisse bei der Herstellung nicht berücksichtigt zu werden. Als Ausgangsstoffe sind alle als Kontrastmittel bereits bekannten organischen Halogenverbindungen, wie sie z. B. in den deutschen Patentschriften +54 64i, 704 549, 7oi6 938, 739 634, 506425, 532 7616, 659496, 545916, 553823, 579wl2t4 beschrieben sind, anwendbar, unabhängig von ihrer Wasserlöslichkeit, deren Einfluß auf die Verteilung der Mittel in den Organen des Körpers durch die Aktivierung keine Änderung erfährt.The radioactive halogen can be according to various known per se Processes are produced, e.g. B. one can radioactive iodine from radioactive iodine potassium obtained by making it free from this in the usual way by iodate. There each is a fraction of a milligram of iodine isotopes required for the reaction acts, this addition needs with respect to the stoichiometric ratios not to be taken into account during manufacture. The starting materials are all as Contrast media already known organic halogen compounds, such as those used, for. B. in German patents +54 64i, 704 549, 7oi6 938, 739 634, 506425, 532 7616, 659496, 545916, 553823, 579wl2t4 are applicable regardless of their solubility in water, their influence on the distribution of the funds in the organs of the body does not experience any change through activation.

Claims (1)

PATENTANSPRUCN: Radioaktives Röntgenkontrastmittel, insbesondere zur Darstellung der Leber und Gallenblase, bestehend aus phzTsiologisch indifferenten organischen Halogenverbindungen, insbesondere Jodverbindungen, die radioaktives Halogen, insbesondere radioaktives Jod, enthalten. PATENT CLAIM: Radioactive X-ray contrast medium, in particular to show the liver and gall bladder, consisting of phzTsiologically indifferent organic halogen compounds, especially iodine compounds that are radioactive Contain halogen, especially radioactive iodine.
DESCH5826A 1950-10-24 1950-10-24 Radioactive contrast medium Expired DE882894C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH5826A DE882894C (en) 1950-10-24 1950-10-24 Radioactive contrast medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH5826A DE882894C (en) 1950-10-24 1950-10-24 Radioactive contrast medium

Publications (1)

Publication Number Publication Date
DE882894C true DE882894C (en) 1953-07-13

Family

ID=7424650

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH5826A Expired DE882894C (en) 1950-10-24 1950-10-24 Radioactive contrast medium

Country Status (1)

Country Link
DE (1) DE882894C (en)

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