CA2121681A1 - Milieux de contraste contenant des particules de gel en vue d'une meilleure imagerie diagnostique - Google Patents

Milieux de contraste contenant des particules de gel en vue d'une meilleure imagerie diagnostique

Info

Publication number
CA2121681A1
CA2121681A1 CA 2121681 CA2121681A CA2121681A1 CA 2121681 A1 CA2121681 A1 CA 2121681A1 CA 2121681 CA2121681 CA 2121681 CA 2121681 A CA2121681 A CA 2121681A CA 2121681 A1 CA2121681 A1 CA 2121681A1
Authority
CA
Canada
Prior art keywords
contrast medium
contrast
polymer
metal
acid
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.)
Abandoned
Application number
CA 2121681
Other languages
English (en)
Inventor
Evan C. Unger
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.)
ImaRx Pharmaceutical Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2121681A1 publication Critical patent/CA2121681A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/54Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/5601Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution involving use of a contrast agent for contrast manipulation, e.g. a paramagnetic, super-paramagnetic, ferromagnetic or hyperpolarised contrast agent
    • 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
    • A61K49/0409Physical forms of mixtures of two different X-ray contrast-enhancing agents, containing at least one X-ray contrast-enhancing agent which is not a halogenated organic compound
    • A61K49/0414Particles, beads, capsules or spheres
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/06Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
    • A61K49/18Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes
    • A61K49/1803Semi-solid preparations, e.g. ointments, gels, hydrogels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/06Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
    • A61K49/18Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes
    • A61K49/1818Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles
    • A61K49/1821Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles
    • A61K49/1824Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles coated or functionalised nanoparticles
    • A61K49/1827Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles coated or functionalised nanoparticles having a (super)(para)magnetic core, being a solid MRI-active material, e.g. magnetite, or composed of a plurality of MRI-active, organic agents, e.g. Gd-chelates, or nuclei, e.g. Eu3+, encapsulated or entrapped in the core of the coated or functionalised nanoparticle
    • A61K49/1833Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles coated or functionalised nanoparticles having a (super)(para)magnetic core, being a solid MRI-active material, e.g. magnetite, or composed of a plurality of MRI-active, organic agents, e.g. Gd-chelates, or nuclei, e.g. Eu3+, encapsulated or entrapped in the core of the coated or functionalised nanoparticle having a (super)(para)magnetic core coated or functionalised with a small organic molecule
    • A61K49/1845Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles coated or functionalised nanoparticles having a (super)(para)magnetic core, being a solid MRI-active material, e.g. magnetite, or composed of a plurality of MRI-active, organic agents, e.g. Gd-chelates, or nuclei, e.g. Eu3+, encapsulated or entrapped in the core of the coated or functionalised nanoparticle having a (super)(para)magnetic core coated or functionalised with a small organic molecule the small organic molecule being a carbohydrate (monosaccharides, discacharides)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/06Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
    • A61K49/18Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes
    • A61K49/1818Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles
    • A61K49/1821Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles
    • A61K49/1824Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles coated or functionalised nanoparticles
    • A61K49/1827Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles coated or functionalised nanoparticles having a (super)(para)magnetic core, being a solid MRI-active material, e.g. magnetite, or composed of a plurality of MRI-active, organic agents, e.g. Gd-chelates, or nuclei, e.g. Eu3+, encapsulated or entrapped in the core of the coated or functionalised nanoparticle
    • A61K49/1851Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles coated or functionalised nanoparticles having a (super)(para)magnetic core, being a solid MRI-active material, e.g. magnetite, or composed of a plurality of MRI-active, organic agents, e.g. Gd-chelates, or nuclei, e.g. Eu3+, encapsulated or entrapped in the core of the coated or functionalised nanoparticle having a (super)(para)magnetic core coated or functionalised with an organic macromolecular compound, i.e. oligomeric, polymeric, dendrimeric organic molecule
    • A61K49/1863Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles coated or functionalised nanoparticles having a (super)(para)magnetic core, being a solid MRI-active material, e.g. magnetite, or composed of a plurality of MRI-active, organic agents, e.g. Gd-chelates, or nuclei, e.g. Eu3+, encapsulated or entrapped in the core of the coated or functionalised nanoparticle having a (super)(para)magnetic core coated or functionalised with an organic macromolecular compound, i.e. oligomeric, polymeric, dendrimeric organic molecule the organic macromolecular compound being a polysaccharide or derivative thereof, e.g. chitosan, chitin, cellulose, pectin, starch
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/22Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations
    • A61K49/222Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations characterised by a special physical form, e.g. emulsions, liposomes
    • A61K49/226Solutes, emulsions, suspensions, dispersions, semi-solid forms, e.g. hydrogels

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Radiology & Medical Imaging (AREA)
  • Epidemiology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Dispersion Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • Immunology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Signal Processing (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
CA 2121681 1991-11-19 1992-10-20 Milieux de contraste contenant des particules de gel en vue d'une meilleure imagerie diagnostique Abandoned CA2121681A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79443791A 1991-11-19 1991-11-19
US794,437 1991-11-19

Publications (1)

Publication Number Publication Date
CA2121681A1 true CA2121681A1 (fr) 1993-05-27

Family

ID=25162622

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2121681 Abandoned CA2121681A1 (fr) 1991-11-19 1992-10-20 Milieux de contraste contenant des particules de gel en vue d'une meilleure imagerie diagnostique

Country Status (5)

Country Link
EP (1) EP0614527A4 (fr)
JP (1) JPH07501331A (fr)
AU (1) AU667491B2 (fr)
CA (1) CA2121681A1 (fr)
WO (1) WO1993010440A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143716A (en) * 1991-02-01 1992-09-01 Unger Evan C Phosphorylated sugar alcohols, Mono- and Di-Saccharides as contrast agents for use in magnetic resonance imaging of the gastrointestinal region
US5885549A (en) * 1991-02-01 1999-03-23 Imarx Pharmaceutical Corp. Phosphorylated materials as contrast agents for use in magnetic resonance imaging of the gastrointestinal region
KR100191303B1 (ko) * 1991-09-17 1999-06-15 씨. 큐웨이 스티븐 기체상의 초음파 조영제 및 초음파 조영제로서 사용하기 위한 기체를 선택하는 방법
MX9205298A (es) * 1991-09-17 1993-05-01 Steven Carl Quay Medios gaseosos de contraste de ultrasonido y metodo para seleccionar gases para usarse como medios de contraste de ultrasonido
US5409688A (en) * 1991-09-17 1995-04-25 Sonus Pharmaceuticals, Inc. Gaseous ultrasound contrast media
IL108416A (en) 1993-01-25 1998-10-30 Sonus Pharma Inc Colloids with phase difference as contrast ultrasound agents
US5310537A (en) * 1993-03-01 1994-05-10 Sterling Winthrop Inc. Compositions of iodoaniline derivatives for visualization of the gastrointestinal tract
US5330740A (en) * 1993-03-01 1994-07-19 Sterling Winthrop Inc. Compositions of iodoaniline derivatives in film-forming materials for visualization of the gastrointestinal tract
US20030100830A1 (en) 2001-11-27 2003-05-29 Sheng-Ping Zhong Implantable or insertable medical devices visible under magnetic resonance imaging
WO2003086474A2 (fr) * 2002-04-11 2003-10-23 Carbomer, Inc Nouvelles sondes d'imagerie
DE10224352A1 (de) * 2002-06-01 2003-12-11 Mueller Schulte Detlef Thermosensitive Polymerträger mit veränderbarer physikalischer Struktur für die biochemische Analytik, Diagnostik und Therapie
JP2005531643A (ja) * 2002-07-02 2005-10-20 ユニベルシテア、メディッシュ、セントラム、ユトレヒト 直径が少なくとも1マイクロメートルの粒子を含んでなる走査懸濁液
US20050065434A1 (en) * 2003-09-22 2005-03-24 Bavaro Vincent P. Polymeric marker with high radiopacity for use in medical devices
US20050064223A1 (en) 2003-09-22 2005-03-24 Bavaro Vincent Peter Polymeric marker with high radiopacity
NO320691B1 (no) * 2004-06-14 2006-01-16 Ntnu Technology Transfer As Nytt kontrastfrigjorende system.

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1985233A (en) * 1928-10-06 1934-12-25 Petroleum Conversion Corp Process and apparatus for converting hydrocarbon oils
US4069306A (en) * 1974-03-14 1978-01-17 Pharmacia Aktiebolag X-ray contrast preparation containing a hydrophilic polymer containing amino groups
US4452773A (en) * 1982-04-05 1984-06-05 Canadian Patents And Development Limited Magnetic iron-dextran microspheres
US4735796A (en) * 1983-12-08 1988-04-05 Gordon Robert T Ferromagnetic, diamagnetic or paramagnetic particles useful in the diagnosis and treatment of disease
GB8310038D0 (en) * 1983-04-13 1983-05-18 Amersham Int Plc Technetium-99 labelled tin colloid
JPH0618789B2 (ja) * 1983-06-09 1994-03-16 フィ−ルド・グル−プ・ケミカルズ・ピ−ティ−ワイ・リミテッド 放射線不透過剤
GB8408127D0 (en) * 1984-03-29 1984-05-10 Nyegaard & Co As Contrast agents
US4749560A (en) * 1984-08-13 1988-06-07 Research Corporation Metal organo phosphorous compounds for NMR analysis
DE3577185D1 (de) * 1984-11-01 1990-05-23 Nycomed As Paramagnetische kontrastmittel fuer die anwendung in "in vivo" nmr-diagnostischen methoden und die herstellung davon.
DE3619746A1 (de) * 1986-06-12 1987-12-17 Basf Ag Superparamagnetische feststoffteilchen
DE3709851A1 (de) * 1987-03-24 1988-10-06 Silica Gel Gmbh Adsorptions Te Nmr-diagnostische fluessigkeitszusammensetzungen
GB8808305D0 (en) * 1988-04-08 1988-05-11 Nycomed As Compositions
EP0438527A4 (en) * 1988-10-14 1992-07-01 Mallinckrodt, Inc. Radiolabelled particulate composition
US5358702A (en) * 1990-04-10 1994-10-25 Unger Evan C Methoxylated gel particle contrast media for improved diagnostic imaging
ATE185489T1 (de) * 1990-04-10 1999-10-15 Imarx Pharmaceutical Corp Polymere als kontrastmittel bei magnetischer resonanz

Also Published As

Publication number Publication date
EP0614527A4 (fr) 1998-06-03
EP0614527A1 (fr) 1994-09-14
WO1993010440A1 (fr) 1993-05-27
AU667491B2 (en) 1996-03-28
AU2894092A (en) 1993-06-15
JPH07501331A (ja) 1995-02-09

Similar Documents

Publication Publication Date Title
US5358702A (en) Methoxylated gel particle contrast media for improved diagnostic imaging
AU667491B2 (en) Gel particle contrast media for improved diagnostic imaging
KR100278513B1 (ko) 이중 코팅을 갖는 철-함유 나노입자 및 진단 및 치료에 있어서의 그의 용도
CN108324962B (zh) 一种团簇结构的四氧化三铁纳米颗粒的制备方法
EP0525199A1 (fr) Composition contenant des particules ultra fines d'oxyde de metal magnetique
JPH01500196A (ja) 臨床用途に使用される生物分解性超常磁性物質
CN103143043B (zh) 一种Fe3O4/Au复合纳米颗粒的制备方法
JPH07110815B2 (ja) 画像及びスペクトル向上(およびスペクトルシフト)のためのポリキレ−ト剤
EP0326226A1 (fr) Composés paramagnétiques
AU628403B2 (en) Methods and compositions for magnetic resonance imaging
JPH05506227A (ja) 磁気共鳴画像用造影剤としてのポリマー
US20090317327A1 (en) Aqueous Dispersion of Superparamagnetic Single-Domain Particles, Production and Use Thereof in Diagnosis and Therapy
US20230087639A1 (en) Biogenic hemin-based mri contrast agents, and compositions and methods thereof
Stanicki et al. Impact of the chain length on the biodistribution profiles of PEGylated iron oxide nanoparticles: A multimodal imaging study
Kim et al. Gold nanoparticles coated with gadolinium-DTPA-bisamide conjugate of penicillamine (Au@ GdL) as a T1-weighted blood pool contrast agent
US6068831A (en) Pseudopolyrotaxanes
JP2000507567A (ja) 網内系(res)器官のt▲下1▼加重核磁気共鳴画像化の方法
Sobhani et al. Novel MR imaging nanoprobe for hepatocellular carcinoma detection based on manganese–zinc ferrite nanoparticles: In vitro and in vivo assessments
KR100943043B1 (ko) 산화철 나노입자가 봉입된 수용성 키토산-소수성 리놀레산복합체 자기-조립 나노입자, 이의 제조방법 및 이를포함하는 간질환 진단용 조영제
WO2005065724A1 (fr) Preparations a base de complexes d'ions paramagnetiques
Rezayan et al. A modified PEG-Fe3O4 magnetic nanoparticles conjugated with D (+) glucosamine (DG): MRI contrast agent
JPWO2019004297A1 (ja) ナノ粒子、これを含む磁気共鳴イメージング用造影剤及びリガンド化合物
JPH10120597A (ja) リンパ節高集積性コロイド粒子
CN107802844B (zh) 一种负载双造影元素的杂化海藻酸钠纳米凝胶的制备方法
Zhang et al. Lactose-modified enzyme-sensitive branched polymers as a nanoscale liver cancer-targeting MRI contrast agent

Legal Events

Date Code Title Description
FZDE Dead