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| Result: Searchterm 'tr'
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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
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| 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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jason kijek
Mon. 4 May.09,
17:25
[Start of:
'How to setup a MRI room? + questions'
0 Reply]
Category:
Site Planning and Specifications
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| How to setup a MRI room? + questions |
I'm planning to purchase a used 1.0-1.5T MRI and I had a few questions.
From what I gather, I need a 480V line, correct? The unit 1.5T takes about 150amps. Does it suck all that power 24x7, or when it's on? If not all the time then how much when it's on standby?
What kind of cooling would I need? From what I read a helium? gas setup? What about A/C? how strong would I need?
What about the room. What size does it have to be? does it need any special insulation?
And are there any companies in Europe what can design and build a room for it?
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Keith Baker
Fri. 17 Apr.09,
23:14
[Reply (1 of 2) to:
'dedicated vascular coil'
started by: 'Behrouz Rahimpour'
on Mon. 5 Feb.07]
Category:
Coils
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| dedicated vascular coil |
Hello, Hitachi just came out with a PVA coil last month. I haven't seen pictures from it, but hear they look good, with or without contrast.
We just had an Echelon 16 channel installed 3 weeks ago, Protocols right out of the system box look good, still have some tweaking to do.
Any suggestions on protocols are GREATLY APPRECIAED.
Thanks, Keith
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marta lola
Wed. 15 Apr.09,
12:11
[Start of:
'Feridex/endorem and bone MRI'
1 Reply]
Category:
Contrast Agents
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| Feridex/endorem and bone MRI |
I would like to label cells with a paramagnetic particle to see it in vivo by MRI after implantation inside a bone defect.
I am thinking on feridex/endoderm, it has contrast effect T2, predominantly negative enhacement.
Does anybody know something about this?
Will I be able to see this kind of signal by MRI? White or blak?
Thanks a lot.
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Pim vanOoij
Thu. 19 Mar.09,
09:58
[Reply (2 of 3) to:
'PCA aliasing problem'
started by: 'Pim vanOoij'
on Fri. 27 Feb.09]
Category:
Artifacts
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| PCA aliasing problem |
This is not spatial aliasing I am talking about, but velocity aliasing. This means that when your velocity encoding parameter is set to 100 cm/s and true velocity in a certain pixel is 120 cm/s, the measured velocity will be -80 cm/s.
In my problem however, with a velocity encoding parameter of 100 cm/s, in certain pixels I measure a velocity of around -60 cm/s where an actual velocity of 40 cm/s exists, which is a real mystery to me.
I don't think increasing FOV will prevent this from happening. Maybe it has something to do with velocity aliasing in other parts of the FOV, where true flow velocity of 110-120 cm/s exists, but I wouldn't know why. Anyone? Thanks.
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