Magnetic Resonance - Technology Information Portal Thursday, 29 July 2010••
Info
  Sheets


Out-
      side
 



 
 'Gadolinium Zeolite' 
SEARCH FOR    
 
  2 3 5 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Result : Searchterm 'Gadolinium Zeolite' found in 1 term [] and 2 definitions []
1 - 3 (of 3)     
Result Pages : [1]
 bottom
MRI Resources  
Movies - MRI Technician and Technologist Career - Collections - Software - Implant and Prosthesis - Stent
 
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.

spacer
Further Reading:
  Basics:
Chembytes e-zine, Special agentsOpen this link in a new window
1998
Gadolite® Oral SuspensionInfoSheet: - Contrast Agents - 
Intro, Overview, 
Characteristics, 
Types of, 
etc.MRI Resource Directory:
 - Contrast Agents -
 
An oral suspension of synthetic crystalline aqueous orange-flavored MRI contrast agent to enhance delineation of the bowel. Gadolite contains gadolinium, a lanthanide metal with paramagnetic characteristics. The toxic Gd is bound to become inert, along with water, inside a zeolite crystalline lattice structure. Gadolite gives a bright signal, and provides improved definition of the gastrointestinal tract from adjacent tissues.
Pharmacyclics receives an approvable letter from the FDA for Gadolite® Oral Suspension and in the United Kingdom an European marketing agreement signed with E-Z-Em, Ltd. in Dec. 1996.

Drug Information and Specification
NAME OF COMPOUND Gadolinium zeolite, Gadolinium chloride hexahydrate
DEVELOPER Pharmacyclics, Inc.
CENTRAL MOIETY Gd2+
CONTRAST EFFECT T1, Predominantly positive enhancement
RELAXIVITY Paramagnetic
PHARMACOKINETIC Gastrointestinal
OSMOLALITY
CONCENTRATION
DOSAGE
PREPARATION Oral suspension
INDICATION Bowel marking
DEVELOPMENT STAGE For sale
DISTRIBUTOR See below
PRESENTATION Suspension
DO NOT RELY ON THE INFORMATION PROVIDED HERE, THEY ARE NOT A SUBSTITUTE FOR THE ACCOMPANYING PACKAGE INSERT!

Distribution Information
TERRITORY TRADE NAME DEVELOPMENT
STAGE
DISTRIBUTOR
USA
Canada
Mexico
EU
Gadolite® Oral Suspension for sale E-Z-EM

spacer
Further Reading:
  Basics:
Chembytes e-zine, Special agentsOpen this link in a new window
1998
  News & More:
CONTRAST AGENTS IN MRI(.pdf)Open this link in a new window
MRI Resources  
MRI Accidents - Health - Chemistry - Resources - Guidance - Knee MRI
 
Gastrointestinal Paramagnetic Contrast AgentsInfoSheet: - Contrast Agents - 
Intro, Overview, 
Characteristics, 
Types of, 
etc.MRI Resource Directory:
 - Contrast Agents -
 
Paramagnetic substances, for example Gd-DTPA solutions, are used as MRI oral contrast agents in gastrointestinal imaging to depict the lumen of the digestive organs. Different Gd-DTPA solutions or zeolites containing gadolinium can be used e.g., for diagnosis of delayed gastric emptying, diagnosis of Crohn’s disease etc.
Low concentrations of gastrointestinal paramagnetic contrast agents cause a reduction in T1 relaxation time; consequently, these agents act on T1 weighted images by increasing the signal intensity of the bowel lumen. High concentrations cause T2 shortening by decreasing the signal, similar to superparamagnetic iron oxide. Gd-DTPA chelates are unstable at the low pH in the stomach, therefore buffering is necessary for oral use.
See also Gadopentetate Gastrointestinal, Gadolinium Zeolite, Negative Oral Contrast Agents, Gastrointestinal Superparamagnetic Contrast Agents, and Ferric ammonium citrate.
 
Images, Movies, Sliders:
 MR Colonography Gadolinium per Rectum  Open this link in a new window
      

Courtesy of  Robert R. Edelman
 
spacer
MRI Resources  
Bioinformatics - Stent - Stimulator pool - Colonography - Shoulder MRI - MRI Technician and Technologist Career
 
     1 - 3 (of 3)     
Result Pages : [1]
 Random Page
 
MR-TIP    
Community   
User
Pass
Forgot your UserID/Password ?  



Most annoying at MRI :
noise 
downtimes 
service 
magnetic hazards 
updates 
cost 
administration 

Look
      Ups





Magnetic Resonance - Technology Information Portal
Member of SoftWays' Medical Imaging Group - MR-TIP • Radiology-TIP • US-TIP • The-Medical-Market
Copyright © 2003 - 2010 SoftWays. All rights reserved.
Terms of Use | Privacy Policy | Advertising
 [last update: 2010-07-26 01:53:30]