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| Result: Searchterm 't1'
found in 54 messages |
| Result Pages: 1 2 3 4 5 6 [7] 8 9 10 11 |
More Results:  Database (172) News Service (18) Resources (5) |
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Steven Ford
Thu. 2 Dec.10,
15:18
[Reply (1 of 2) to:
'T1&T2 WAIGHTED MEANING ?'
started by: 'BINU VAEGHESE'
on Wed. 1 Dec.10]
 Category:
Basics and Physics
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| T1&T2 WAIGHTED MEANING ? |
All MRI images have contrast (the bright and the dark) that is based on properties of the tissue that's being imaged. In MRI (unlike, for example, CT) those images are based on a combination of several physical properties. So to some extent ALL MRI images are based partly on property A, property B, etc.
The tissue properties that are referred to include proton density (how many hydrogen nuclei are in a given area), motion, and two other properties that are called T1 and T2. These are properties that can be seen onloy by using the MRI instrument, much as without a microscope one cannot see inside a cell.
A T1 weighted image is one in which the differences between T1 properties of the various tissues are the predominant reason why some parts of the image are bright and others are not as bright.
This is medically useful because, since T1 and T2 are distinct properties, diseased tissue may show up different than normal tissue on either the T1 weighted scan or the T2.
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|  View the whole thread | | |
Mike Hoff
Fri. 10 Sep.10,
08:09
[Reply (1 of 2) to:
'T1 and T2 of mineral oil at 3T'
started by: 'M B'
on Tue. 18 Oct.05]
Category:
Basics and Physics
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| T1 and T2 of mineral oil at 3T |
I'm also interested in this information.
Better yet, there must be a institutional site somewhere with T1 and T2 values for various substances. Anyone have a suggestion?
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| | View the whole thread | | |
adam wootton
Thu. 26 Aug.10,
16:58
[Reply (2 of 3) to:
'3T imaging parameters'
started by: 'Nancy Dudek'
on Fri. 26 Aug.05]
Category:
Sequences and Imaging Parameters
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| 3T imaging parameters |
All your parameters will be the same in a 3T as in the 1.5T except for the T1's TR. T1 TR is 700 to 1300.
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| | View the whole thread | | |
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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REDDY VENKATESWARA RAO
Thu. 15 Apr.10,
13:17
[Reply (5 of 6) to:
'Brain Protocol'
started by: 'Oscar Cidri'
on Tue. 7 Sep.04]
Category:
Protocols
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| Brain Protocol |
T1,T2,FLAIR & DWI AXIALS. T1SAG & T2COR
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