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| Result: Searchterm 'ffe'
found in 134 messages |
| Result Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 [15] 16 17 18 19 20 21 22 23 24 25 26 27 |
More Results:  Database (446) News Service (436) Resources (66) |
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Mel Chang
Thu. 21 Oct.10,
19:26
[Reply (1 of 2) to:
'cervicla axial image t2 and t2*'
started by: 'kim jk'
on Thu. 23 Sep.10]
 Category:
Applications and Examinations
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| cervicla axial image t2 and t2* |
T2* is fine to scan the intervertebral discs. T2 is the better choice to show small spinal cord lesions like MS plaques. The echo time of a T2* sequence may be not long enough to give a good differentiation between the pathology and surrounding tissue.rnDifferent 'Multi Echo Data Image Combination' (MEDIC) techniques have been developed to enhance contrast and pathology detection, if available on the scanner this type of sequence is maybe also a good choice, but due to longer scan times and artifact problems it is best for axial slices.rn
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Jacob Newton
Thu. 7 Oct.10,
19:22
[Reply (1 of 2) to:
'How does TE affect DWI acquisition?'
started by: 'danilo Scelfo'
on Wed. 29 Sep.10]
Category:
Sequences and Imaging Parameters
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| How does TE affect DWI acquisition? |
I never tried to shorten only the echo time while keeping all other parameters the same, but I would expect a change in SNR and artifact appearance. I would use parallel imaging methods to get a shortest possible echo time. Parallel imaging provides DWI with shorter echo trains associated with further reduction of the echo and repetition times, which reduces susceptibility effects and also image blurring. Additionally, the shorter echo time may lead to changes in ADC measurement.
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kim jk
Thu. 23 Sep.10,
06:37
[Start of:
'cervicla axial image t2 and t2*'
1 Reply]
Category:
Applications and Examinations
|
| cervicla axial image t2 and t2* |
hello
every one
may i have question ~
why used for cervical axial t2 star instead of t2 in signa 1.5t ?
and what differnt t2 star between t2 of pathology ..?
umm,, my english is pool,, sorry about that,,
bye..
wating for kindly answer~
jk
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Reader Mail
Tue. 8 Jun.10,
21:23
[Start of:
'Breast MRI selection-PLEASE HELP!'
1 Reply]
Category:
Applications and Examinations
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| Breast MRI selection-PLEASE HELP! |
Hi, i am new here..if this is in the wrong forum, PLEASE relocate, THANK YOU!!
I am not familiar with Breast MRIs and i need an advice on the most up todate Breast MRI as i may have b.cancer.
I have family history, maternal side and dense breast, thus the MRI.
I was offered 1) Siemens MAGNETOM Espree 1.5T
2) The Aurora® 1.5T Dedicated Breast MRI System with Bilateral 3-D SpiralRODEO™
3) Phyllips 3T Breast MRI
PLEASE, PLEASE HELP!!! Which one and WHY?
THANK YOU!!!
Eva.
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Michiel Klitsie
Wed. 2 Jun.10,
14:53
[Start of:
'Imaging of the sacral plexus'
1 Reply]
Category:
Applications and Examinations
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| Imaging of the sacral plexus |
We are students Technical Medicine from Twente University and are researching the imaging of the anatomical variation of the sacral plexus. This means the imaging of nerves in a fatty/muscle enviroment with a diameter below 1 mm.rnrnWe are interested in different MR-sequences that will show these small nerves (at the moment we came up with MP(2)Rage, STIR, normal SE T1 and DW) Does anybody can provide us why we should or shouldn't use one of these sequences. Or maybe somebody does have a better suggestion?rnrnAlso we were planning to combine spinal and abdominal coils (phased-array RF coils), does this depict the sacral plexus in a good way?rnrnWe also thought about using a 7T MRI scanner, because of the high spatial resolution. Is this a possibility or does it give to much artifacts? Or is the spatial resolution in a 3T machine enough for such small nerves?rnrnThanks in advance!
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