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| Result: Searchterm 'tr'
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Simon Lang
Mon. 11 Jan.10,
15:42
[Start of:
'five-way ANOVA SPM5'
0 Reply]
 Category:
Funktional MRI
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| five-way ANOVA SPM5 |
Is it possible to do an five-way Anova analyse with SPM5? i tried to do it but i always get an error. is it becaus thomething in mi datas is wrong or is it inpossible to do more than a 3-way Anova with SPM5??
if it is impossible can someone tell me a analyse programm to do an 5-way Anova?
thanks
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Hao Chien
Mon. 11 Jan.10,
08:43
[Start of:
'What mri analysis software do you guys use???'
0 Reply]
Category:
Applications and Examinations
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| What mri analysis software do you guys use??? |
Recently, I'm trying to analyze t2* images.
After I get the raw data,I have no idea how
the t2* map can be produced.
Does anyone have easy way or tool to solve it?
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Iosif Sogolov
Sun. 3 Jan.10,
20:49
[Reply (7 of 12) to:
'90 excitation pulse vs 180 inversion pulse'
started by: 'Bjorn Redfors'
on Sat. 27 Jun.09]
Category:
Basics and Physics
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| 90 excitation pulse vs 180 inversion pulse |
prior 90: spins precess around B0 uncoherently, there for the sum of their projections on TRANSVERSE plane is ZERO, they are "unfocused" in this plane. 90 and right after: all above mentioned spins are forced to rotate around B1, it should be stressed - in only one for ALL of them chosen direction of rotation (depends of B1 direction) to the TRANSVERSE plane, they all will come compact to this plane and now they do give here NET MAGNETIZATION, become "focused".
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Reader Mail
Wed. 30 Dec.09,
01:26
[Reply (6 of 12) to:
'90 excitation pulse vs 180 inversion pulse'
started by: 'Bjorn Redfors'
on Sat. 27 Jun.09]
Category:
Basics and Physics
|
| 90 excitation pulse vs 180 inversion pulse |
Hello: would be probably convenient to reformulate the original question, or at least to clarify a little.... Why are the "spins" "brought into coherence" by the 90 excitation pulse?. For instance, a hard 90 ex pulse itself does not affect the coherence of spins in normal conditions, nor brough them into coherence. However, it may add an additional decoherence if the RF field is not homogeneous or, in case it would be applied under the presence of a strong static gradient. Same thing for the 180 deg pulse.
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Reader Mail
Wed. 30 Dec.09,
01:11
[Reply (3 of 4) to:
'contrast administration'
started by: 'Reader Mail'
on Sun. 27 Dec.09]
Category:
Contrast Agents
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| contrast administration |
yes for mr registry,study preperations.
thanks so much for your responses.
anyone take registry lately,how was it?
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