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| Result: Searchterm 'Tesla'
found in 13 messages |
| Result Pages: 1 [2] 3 |
More Results:  Database (40) News Service (56) Resources (12) |
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werginn carvajal
Sat. 23 May.09,
21:42
[Reply (7 of 26) to:
'MRI Technologists Jobs in Saudi Arabia'
started by: 'Mosta Mosta'
on Tue. 3 Mar.09]
 Category:
Jobs
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| MRI Technologists Jobs in Saudi Arabia |
I have exp. 1.5 platform 5-LX Hispeed-LX Echospeed HDx 14 tesla SIGNA G.E and Philips 1.5 tesla INTERA and 3.0 tesla 0.2 0.3 tesla SIGNA Profile G.E open MRI Siemens 1.5 tesla SYMPHONY
wginncvjal@hotmail.com
305/984-2261
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MICHAEL LONG
Fri. 14 Nov.08,
04:45
[Start of:
'STIR-TR'
1 Reply]
Category:
Sequences and Imaging Parameters
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| STIR-TR |
Is there a rule regarding what the TR should be for a STIR sequence? If so, is the 'rule' different for 1.5 and 3.0 Tesla?
thnx
mike long
addison tx
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israa sadiq
Sat. 19 Jul.08,
14:19
[Start of:
'coils for leg'
1 Reply]
Category:
Applications and Examinations
|
| coils for leg |
our MRI machine is open 0.2 tesla in which parts of the body it is realiable to examine with, is there special desigend coil for leg examination.can i use knee or brain coil.
thanks
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Paul Vu
Mon. 2 Jun.08,
22:35
[Reply (1 of 3) to:
'siemens concerto 0.2 T'
started by: 'Dr.Pankaj Ahire'
on Tue. 27 May.08]
Category:
Devices, Scanner, Machines
|
| siemens concerto 0.2 T |
Dr. Pankaj Ahire,
.2 tesla siemens concerto is a good machine. i'm working for a company that operates on this type of MR modality. The open system is good for fat people. If you'd like, you can buy the system from my company Open Advantage MRI. It's in Westlake Village.
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Paul Tesla
Fri. 9 Nov.07,
15:31
[Start of:
'How do you measure SNR?'
0 Reply]
Category:
Basics and Physics
|
| How do you measure SNR? |
I know this is a basic question but how do you measure SNR?
This page:
http://dnl.ucsf.edu/users/dweber/dweber_docs/mri_quality.html
tells me to measure an as small as possible ROI for the signal mean and as large as possible ROI for the standard deviation.
But I have a book called "MRI from picture to proton": This says that the standard deviation of the noise (Sn) can be measured using the mean or standard deviation (sd) of a background region. Then you can use the relationship:
Mean = 1.25 Sn
sd = 0.66 Sn
to find Sn. But where do the values 1.25 and 0.66 come from?
It also says that the measured mean of the signal ROI is related to the MR signal instensity (S) using:
Mean = sqrt(S^2 + Sn^2)
But why do they add up quadratically?
Thankyou for your help. Please leave a message or email me,
Paul
-------------
mri.tesla@gmail.com
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