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| Result: Searchterm 'GaDolinium'
found in 19 messages |
| Result Pages: 1 [2] 3 4 |
More Results:  Database (66) News Service (36) Resources (6) |
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Eric Gonzalez
Wed. 10 Oct.12,
20:06
[Reply (1 of 2) to:
'Brain T2FS postcontrast'
started by: 'kaisa bente'
on Thu. 27 Jan.11]
 Category:
Applications and Examinations
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| Brain T2FS postcontrast |
Gadolinium relaxation times are too short for T2 weighted imaging, so T2 weighted is not tipically performed after contrast (unless used as a delay to give contrast time to peak before T1 FS is obtained).
Also I have never worked at any facility that uses T2 fat sat imaging on the brain. Not a whole lot of fat in the brain region!
FLAIR imaging is the norm...but I could stand corrected.
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|  View the whole thread | | |
Karen Lesley
Thu. 26 Jan.12,
15:55
[Reply (4 of 7) to:
'Imaging optic neuritis'
started by: 'Karen Lesley'
on Wed. 18 Jan.12]
Category:
General
|
| Imaging optic neuritis |
Thanks Anna :-)
I've recommended thin coronal STIR (the "axial" in my original post was a mistake - I do know better, promise!) and FLAIR.
The ON is longstanding, so may not show with gadolinium, but worth a try if the budget will stretch so will add that too.
Thanks again.
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| | View the whole thread | | |
Anna Lena Golay
Wed. 25 Jan.12,
20:59
[Reply (3 of 7) to:
'Imaging optic neuritis'
started by: 'Karen Lesley'
on Wed. 18 Jan.12]
Category:
General
|
| Imaging optic neuritis |
A 2-3 mm STIR sequence through the optic nerves may show the characteristic high-signal intensity of optic neuritis. Gadolinium enhanced T1-weighted fat-saturated (to suppress the bright signal of the orbital fat tissue) images of the orbits show the inflammation of the optic nerve. White matter lesions, which denote a higher risk of developing MS, are typical imaged with FLAIR and T2-weighted images (hyperintense lesions), or show enhancement of T1-weighted images postcontrast.
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| | View the whole thread | | |
Karen Lesley
Mon. 23 Jan.12,
11:02
[Reply (1 of 2) to:
'Gadolinium - blood brain barrier'
started by: 'Reader Mail'
on Mon. 23 Jan.12]
Category:
General
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| Gadolinium - blood brain barrier |
Gadolinium cannot normally cross the bbb. It does when there is a breach though, and this shows up as a bright white spot on T1 images.
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| | View the whole thread | | |
Adana Osco Barras
Tue. 3 Jan.12,
21:09
[Reply (1 of 2) to:
'Hyperintense blood vessels in SE'
started by: 'Peruvumba Jayakumar'
on Thu. 29 Dec.11]
Category:
Sequences and Imaging Parameters
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| Hyperintense blood vessels in SE |
Prolonged T1 relaxation times, decreased T1 tissue contrast, and increased susceptibility rnare typical effects at high field MRI.rnDue to the longer T1 times at 3T, the signal rnintensity inside the vessels is preserved even in smaller vessels. Try TR 700, TE 10.rnInversion recovery sequences are very well suited for optimal gray to white matter contrast, but enhancement after administration of gadolinium may not be visible.
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