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MRI Forum
'Contrast'
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Result: Searchterm 'Contrast' found in 78 messages
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ASMA NAZ

Mon. 24 May.10,
18:20

[Reply (3 of 4) to:
'mrcp'
started by: 'Teri Dimas'
on Fri. 29 Jan.10]


 
  Category: 
Patient Care and Comfort

 
mrcp
For a better result of MRCP, a patient should be NPO for abt 6 hours.Then just five minutes before starting the scan,pure pineapple juice(500ml)is given.Magnesium found in pineapple, acts as oral contrast in biliary tract thus gives a sharp and bright clear image.For the sequence breath hold should proper.
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George LoGuirato

Wed. 3 Mar.10,
15:38

[Reply (1 of 2) to:
'Dynamic Imaging'
started by: 'Ron Harris'
on Tue. 2 Mar.10]


 
  Category: 
Applications and Examinations

 
Dynamic Imaging
Don't have a solid definition, but will give an example. Pituitary study: you can run a dynamic study by using a power injector set for a slow infusion rate of let's say 0.75ml/sec. The scanner is set to run a scan sequence through the PIT (25-35 seconds) and then repeat that sequence usually six times. The dynamic "uptake" and "falloff" of contrast in the PIT is evident.
Hope this helps.
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Reader Mail

Tue. 29 Dec.09,
21:37

[Reply (2 of 4) to:
'contrast administration'
started by: 'Reader Mail'
on Sun. 27 Dec.09]


 
  Category: 
Contrast Agents

 
contrast administration
This depends on the contrast agent and its concentration. The accompanying package insert of this contrast agent should be followed. This is for testing purposes, or?
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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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