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New acceleration techniques will :
reduce scan times 
cause artifacts 
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be useful if you have a lot of experience 
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Steven Smith

Thu. 21 Dec.06,
11:23

[Reply (1 of 3) to:
'scan matrices and steps'
started by: 'Steven Smith'
on Wed. 20 Dec.06]


 
  Category: 
General

 
scan matrices and steps
Ah, just to answer my own question, I'm guessing this means the scan resolution goes up in increments of 4.
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Steven Smith

Wed. 20 Dec.06,
22:46

[Start of:
'scan matrices and steps'
2 Replies]


 
  Category: 
General

 
scan matrices and steps
Hello,
I've just joined this forum because I'm a Japanese-English translator and often translate MRI related material, but my knowledge is a bit patchy. I have a rather basic question. Part of a product specification goes (translated):
Scan Matrix: 64 – 1024 x 64 – 1024; 4 steps per

I assume this is 4 steps per scan, but wanted to check just in case. Also could anyone explain what is meant by steps in this context?

Thanks very much

Steven Smith
www.fwtranslations.co.uk
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Marco Costa

Wed. 22 Nov.06,
22:29

[Reply (2 of 3) to:
'MRA'
started by: 'Marco Costa'
on Sun. 22 Oct.06]


 
  Category: 
Protocols

 
MRA
Thank you very much, i realy need that information!

My best regards Marco Costa!
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Sheila Edenfield

Thu. 2 Nov.06,
16:03

[Start of:
'MRV--Phase contrast question'
0 Reply]


 
  Category: 
General

 
MRV--Phase contrast question
What exactly is an MRV sequence on an Hitachi Airis II .3 Tesla?
I realize it has to do with the venus system but if anyone knows anything I sure would appreciate your time and knowledge concerning this.

Also The physician I am working under(Neurologist), he would like to see my MRAs done with a phase encoding protocall? Is there such a thing? I hope someone out there can give me some knowledgable info on this. Thank you Sheila/Georgia :)
 
 

Sheila Edenfield
Airis II Hitachi .3T
Stockbridge Ga
sheilamritechnologist@yahoo.com
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Marco Costa

Sun. 22 Oct.06,
10:27

[Start of:
'MRA'
2 Replies]


 
  Category: 
Protocols

 
MRA
Hello!

Is my first time in this forum! I read it a lot this forum, is very helpfull for my job!

I have a dificult in my mri machine.

First i would like to now how can i construct a bolus teste manualy! I don't have smart prep. What sequence i must use and what parameters i must choose.

Second, can you expline to me the diference between centric fill of K-space and non centric?

When is the best time to star the sequence after take the time injection.

My regards
Marco Costa
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