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MRI Forum
'Contrast Agents'
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Result: Searchterm 'Contrast Agents' found in 8 messages
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Gopi B

Tue. 20 Feb.07,
14:35

[Start of:
'MRI contrast agents'
0 Reply]


 
  Category: 
Contrast Agents

 
MRI contrast agents
Hello,
Could anyone reply, where i could directly buy commercially available various nanoparticle MRI cotrast agents?.
Thanks
Gopi
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Christine Row

Tue. 1 Sep.09,
19:11

[Reply (1 of 4) to:
'Please recommend materials sensitive to T1-weighted MRI'
started by: 'Cindy Duan'
on Wed. 12 Aug.09]


 
  Category: 
Basics and Physics

 
Please recommend materials sensitive to T1-weighted MRI
Beside diluted contrast agents, you can use fat containing substances, for example fish-oil filled capsules.
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Elena Brown

Fri. 22 May.09,
20:48

[Reply (1 of 2) to:
'Feridex/endorem and bone MRI'
started by: 'marta lola'
on Wed. 15 Apr.09]


 
  Category: 
Contrast Agents

 
Feridex/endorem and bone MRI
Some experiments with superparamagnetic contrast agents such as Feridex/Endorem with labeled cells showed a black appearance on T2 weighted sequences, which was easy to see. The less dominant T1 effect, bright on T1 weighted images was more subtle. (I found this also interesting http://www.nature.com/nm/journal/v7/n11/full/nm1101-1241.html and the article 'MR and iron magnetic nanoparticles. Imaging opportunities in preclinical and translational research' on http://www.tumorionline.it/cerca.php )
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BETH PHILLIPS

Thu. 2 Aug.07,
05:32

[Start of:
'???'
1 Reply]


 
  Category: 
Contrast Agents

 
???
Is Gado listed as a contrast agent or a medicine under the FDA? Is it legal for an mri technologist to inject gado? I know we can inject contrast agents but is gado listed under the FDA as a contrast agent or is it listed as something else?
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Renate Bloemer

Mon. 13 Nov.06,
19:29

[Reply (1 of 2) to:
'T1 FAT SAT PRE AND POS GADO'
started by: 'CLAUDIO RIBERTI'
on Tue. 24 Oct.06]


 
  Category: 
Contrast Agents

 
T1 FAT SAT PRE AND POS GADO
The contrast agent causes this difference. Contrast agents reduce the T1 time in tissues where they have accumulated depending on blood flow and vascular permeability. Caused by this, tissues after an application of contrast agents will differ in shortening of the T1 time, and the same imaging parameters result in other image appearance.
Some helpful links for musculoskeletal imaging and Fat Sat:
http://www.moffitt.org/moffittapps/ccj/v8n3/pdf/221.pdf
http://www.medical.siemens.com/siemens/en_US/gg_mr_FBAs/files/MRI_Hot_Topics/MRI_HotTopics_Skinny_on_FatSat_engl.pdf

Hope this helps
 
 

Renate Bloemer
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