WO1992003168A1 - New use of complex salts - Google Patents
New use of complex salts Download PDFInfo
- Publication number
- WO1992003168A1 WO1992003168A1 PCT/EP1991/001534 EP9101534W WO9203168A1 WO 1992003168 A1 WO1992003168 A1 WO 1992003168A1 EP 9101534 W EP9101534 W EP 9101534W WO 9203168 A1 WO9203168 A1 WO 9203168A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- salts
- contrast
- complex
- pancreas
- imaging
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
Definitions
- the invention relates to the new application of a known complex salt in de NMR diagnostics.
- N N, N'-bis (py ⁇ doxal-5-phosphate) -ethylenediamine-N, N'-diacetic acid or N, N'-bis- (3-hydroxy-2-methyl-5-phosphonomethyl-4-pyridylmethyl) -ethylenediamine- N, N'-diacetic acid is called.
- This manganese complex is referred to in the European patent application 290047 and also in the text below as Mn (DPDP).
- the invention thus relates to the use of manganese complexes with the complex ligand of the formula I and their salts for the production of contrast media for the imaging of the pancreas.
- the invention also relates to contrast media for imaging the pancreas containing a manganese complex with the complex ligand of the formula I and / or its salts.
- the invention furthermore relates to the use of contrast media containing a manganese complex with the complex ligand of the formula I and / or its salts in the imaging of the pancreas.
- the invention comprises a method for producing a contrast agent for imaging the pancreas, which contains a manganese complex with the complex ligand of the formula I and / or its salts, and also conventional auxiliaries, which is characterized in that it is prepared in a known manner Manganese complex and / or its salts are mixed with customary auxiliaries and converted into a contrast medium for imaging the pancreas.
- Possible salts are the salts mentioned in European patent application 290047, and here in particular the sodium / calcium salt. Contrast agents in the sense of the invention are to be understood in particular as NMR contrast agents.
- Figures 1 and 2 below show the signal amplifications in the head and tail of the pancreas (in%) as a function of time ( Figure 1: 0-100 min; Figure 2: 0-400 min). The signal amplification in the liver is given for comparison.
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH265390 | 1990-08-15 | ||
CH2653/90-7 | 1990-08-15 | ||
DEP4026103.4 | 1990-08-17 | ||
DE19904026103 DE4026103A1 (en) | 1990-08-17 | 1990-08-17 | Manganese complexes for nmr imaging of pancreas - contain the ligand n,n'-bis-(pyridoxal-5-phosphate) ethylene di:amine n.n'-di:acetic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992003168A1 true WO1992003168A1 (en) | 1992-03-05 |
Family
ID=25691060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1991/001534 WO1992003168A1 (en) | 1990-08-15 | 1991-08-13 | New use of complex salts |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0543872A1 (en) |
JP (1) | JPH06500090A (en) |
AU (1) | AU8325491A (en) |
WO (1) | WO1992003168A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0290047A2 (en) * | 1987-05-08 | 1988-11-09 | Nycomed Salutar, Inc. | Dipyridoxyl phosphate nuclear magnetic resonance imagery contrast agents |
WO1990003975A1 (en) * | 1988-09-27 | 1990-04-19 | Salutar, Inc. | Manganese(ii) chelates |
-
1991
- 1991-08-13 AU AU83254/91A patent/AU8325491A/en not_active Abandoned
- 1991-08-13 EP EP19910914512 patent/EP0543872A1/en not_active Withdrawn
- 1991-08-13 JP JP51387891A patent/JPH06500090A/en active Pending
- 1991-08-13 WO PCT/EP1991/001534 patent/WO1992003168A1/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0290047A2 (en) * | 1987-05-08 | 1988-11-09 | Nycomed Salutar, Inc. | Dipyridoxyl phosphate nuclear magnetic resonance imagery contrast agents |
WO1990003975A1 (en) * | 1988-09-27 | 1990-04-19 | Salutar, Inc. | Manganese(ii) chelates |
Non-Patent Citations (4)
Title |
---|
Magnetic Resonance in Medicine, Band 10, 1989, Academic Press, Inc., S.W. Young et al.: "MRI measurement of hepatocyte toxicity using the new MRI contrast agent manganese dipyridoxal diphosphate, a manganese/pyridoxal 5-phosphate chelate", Seiten 1-13, siehe Seite 3, Absatz 3 * |
STN (Karlsruhe) File Server, File Medline, Nr. 91075010, G. Elizondo et al.: "Preclinical evaluation of MnDPDP: new paramagnetic hepatobiliary", Seiten 73-78, & Radiology, (1991 Jan) 178 (1) 73-8, siehe Zusammenfassung * |
STN (Karlsruhe) File Server, File Medline, Nr. 91075011, K.O. Lim et al.: "Hepatobiliary, MR imaging: first human experience with MnDPDP", Seiten 79-82, & Radiology, (1991 Jan) 178 (1) 79-82, siehe Zusammenfassung * |
STN (Karlsruhe) File Server, File Medline, Nr. 91297063, H.B. Gehl et al.: "Pancreatic enhancement after low-dose infusion of Mn-DPDP", Seiten 337-339, & Radiology, (1991 Aug) 180 (2) 337-9, siehe Zusammenfassung * |
Also Published As
Publication number | Publication date |
---|---|
AU8325491A (en) | 1992-03-17 |
JPH06500090A (en) | 1994-01-06 |
EP0543872A1 (en) | 1993-06-02 |
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