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Searchterm 'Gadolinium' was also found in the following services of MR-TIP.com:  
News  (35)   Resources  (6)   Forum  (10)  
 
GadoliniumForum - related threadsInfoSheet: - Contrast Agents - Intro, Overview, Characteristics, Types of, etc.
 
(Gd) Gadolinium is a Lanthanide element that is paramagnetic in its trivalent state.
This paramagnetic substance is used for MR imaging because of the effect of strongly decreasing the T1 relaxation times of the tissues to which gadolinium has access. When injected during magnetic resonance imaging, gadolinium will tend to change signal intensities by shortening the T1 time in its surroundings.
The relaxivity of gadolinium is an important measure of its efficacy, which is dependend on the chemical properties of the complex. The gadolinium ion cannot be used in its chloride, sulfate, or acetate forms because of poor tolerance and low solubility in water in the neutral pH range. Although toxic by itself, gadolinium can be given safely in a chelated form such as DTPA, that still retains much of its strong effect on relaxation times (relaxivity).
See also Dotarem®, Gadovist®, MultiHance®, Omniscan®, OptiMARK®, and Contrast Agents, the info sheet gives an overview and more in-dept information about different types of MRI contrast agents.
 
Images, Movies, Sliders:
 Normal Lung Gd Perfusion MRI  Open this link in a new window
      

Courtesy of  Robert R. Edelman

 Breast MRI Images T1 Pre - Post Contrast  Open this link in a new window
 
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Further Reading:
  Basics:
Gadolinium(.pdf)Open this link in a new window
2000
MRI Contrast Agent(.pdf)Open this link in a new window
2000   by jbfpc2.ycp.edu    
A LANTHANIDE LANTHOLOGY(.pdf)Open this link in a new window
   by webphysics.davidson.edu    
  News & More:
P760: A New Gadolinium Complex Characterizedby a Low Rate of Interstitial Diffusion1, Academic Radiology, Vol 9, Suppl 1(.pdf)Open this link in a new window
2002   by www.academicradiology.com       [Free, but registration is required.]
GADOLINIUM-CONTAINING MIXED MICELLE FORMULATIONS, Academic Radiology, Vol 9, Suppl 1(.pdf)Open this link in a new window
2002   by www.academicradiology.com       [Free, but registration is required.]
DNA-SEEKING GADOLINIUM COMPLEXES FOR NEUTRON CAPTURE THERAPY (NCT) (.pdf)Open this link in a new window
 •• There are 17 news about 'Gadolinium'.
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Directories - Contrast Agents - Blood Flow Imaging - Breast MRI - Societies - Quality Advice
 
Gadolinium OxideInfoSheet: - Contrast Agents - Intro, Overview, Characteristics, Types of, etc.
 
Gadolinium oxide (Gd2O3) is a prototype paramagnetic agent for contrast enhanced MRI. Gd2O3 particles have very high relaxivity. With its high magnetic moment, gadolinium reduces the relaxation time and enhance MR signal intensity. All gadolinium compounds are highly toxic. Very stable complexes are developed to eliminate the toxicity. See also Paramagnetic Substance, Paramagnetism, Paramagnetic Contrast Agents and Contrast Agents, the info sheet gives an overview and more in-dept information about different types of MRI Contrast media.
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Further Reading:
  Basics:
Gadolinium(.pdf)Open this link in a new window
2000
Biofunctionalised nanoparticles – new MRI contrast agentsOpen this link in a new window
   by www.cmiv.liu.se    
  News & More:
Multi-Modal Contrast Agents:(.pdf)Open this link in a new window
2002   by www.academicradiology.com       [Free, but registration is required.]
Searchterm 'Gadolinium' was also found in the following services of MR-TIP.com:  
News  (35)   Resources  (6)   Forum  (10)  
 
Gadolinium ZeoliteInfoSheet: - Contrast Agents - Intro, Overview, Characteristics, Types of, etc.
 
(Gadolite® oral Suspension) An oral paramagnetic MRI contrast agent to enhance delineation of the bowel. Zeolites are hydrated aluminosilicates with large holes that can provide a temporary home for guest molecules like gadolinium. Zeolites modified with Gd (III) are effective positive MRI contrast agents for gastrointestinal application.

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Further Reading:
  Basics:
Chembytes e-zine, Special agentsOpen this link in a new window
1998
MRI Resources  
Online Books - Blood Flow Imaging - Movies - Directories - Veterinary MRI - Artifacts
 
Motexafin GadoliniumInfoSheet: - Contrast Agents - Intro, Overview, Characteristics, Types of, etc.
 
An agent currently in Phase III clinical trials that selectively targets diseased cells because they have increased rates of metabolism. Once inside the diseased cell, motexafin gadolinium may work to disrupt its energy production and the ability to repair itself. This biolocalization can be confirmed because the compound can be seen via MRI. Motexafin gadolinium accumulates in diseased cells with repeat doses and remains in the cells for days.
Motexafin gadolinium is being investigated in clinical trials, in combination chemotherapy and with radiation therapy for the treatment of several types of cancer.
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Pharmacyclics Receives Non-Approvable Letter from the FDA for Xcytrin for the Treatment of Lung Cancer Brain MetastasesOpen this link in a new window
Friday, 21 December 2007   by www.prnewswire.com    
 •• There are 2 news about 'Motexafin Gadolinium'.
Searchterm 'Gadolinium' was also found in the following services of MR-TIP.com:  
News  (35)   Resources  (6)   Forum  (10)  
 
DysprosiumInfoSheet: - Contrast Agents - Intro, Overview, Characteristics, Types of, etc.
 
(Dy) The Dysprosium chelates are analogs of the extracellular gadolinium chelates, with substitution of the dysprosium ion for the gadolinium ion and offers advantages in application on first pass studies. The use of a dysprosium-based contrast agent (Dy-type) instead of a gadolinium-type (Gd-type) is an alternative in cases of a disrupted blood brain barrier. Because of its much smaller T1 enhancement, this contrast agent should give more accurate perfusion calculations in brain MRI.

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Further Reading:
  Basics:
A LANTHANIDE LANTHOLOGY(.pdf)Open this link in a new window
   by webphysics.davidson.edu    
DysprosiumOpen this link in a new window
   by www.scescape.net    
  News & More:
Development of a new type of contrast agent: potential for angiographyOpen this link in a new window
Saturday, 1 January 2005   by www-dsv.cea.fr    
 •• There is 1 news about 'Dysprosium'.
MRI Resources  
Absorption and Emission - Portals - Developers - Implant and Prosthesis pool - Education - Resources
 
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