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| Result: Searchterm 'Gradient'
found in 38 messages |
| Result Pages: 1 2 3 4 [5] 6 7 8 |
More Results:  Database (316) News Service (6) Resources (7) |
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James R
Mon. 14 Sep.09,
22:23
[Reply (12 of 21) to:
'MRI registry equations'
started by: 'Donna Nusser'
on Tue. 18 Aug.09]
 Category:
Basics and Physics
|
| MRI registry equations |
now i'm disappointed i failed modules 4-5-6-7-8. 4-5-6 i thought i was good with my wife told me my scores so when i see it i hope all the ones i got wrong were all those stupid "filler questions" (b/c they are good for credits)that questions that i got wrong.
example: what happens when the service engineer mistakenly connects the z gradient coil to y gradient amplifer, and the y gradient coil to the z amplifer or something like that the registry don't ask that from what i was told
now i know why my friend took a live taught course cause he had mic and liked it then hated it
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Donna Nusser
Tue. 18 Aug.09,
19:17
[Start of:
'MRI registry equations'
20 Replies]
Category:
Basics and Physics
|
| MRI registry equations |
I'm studying for the registry with the help of the MIC registry review program. I think my mind has turned to mush. I can not figure out the answer to this question or find an equation to help me. Is there anyone out there who can help?!!
"In an ideal 1.0T magnet with perfect homogeneity, if a proton experiences a magnetic field of 1.006T and is positioned 0.5 meter along the positive z-direction and centered along the x and y directions, the z-gradient amplitude is________mT/m."
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Naeem Yazdani
Thu. 25 Jun.09,
08:47
[Start of:
'Technical Specifications'
0 Reply]
Category:
Site Planning and Specifications
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| Technical Specifications |
Hi,
I'm kind of new to MRI technology and am doing a comparison of various MRI equipment. Could somebody give me a brief summary of the technical specifications I should pay special attention to?
E.g. High slew rate is preferable
High transmit power (at least 15kW)
High gradient field strength
Helium usage (in terms of maintenance costs)
Etc.
What other factors play a huge role in differing price?
Thanks in advance
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samer abou-deeb
Sat. 25 Apr.09,
13:13
[Start of:
'wandering about GE HDe'
0 Reply]
Category:
Devices, Scanner, Machines
|
| wandering about GE HDe |
can anyone explaine how GE HDe 1.5T MRI with low gradient and slew rates can perform studies that used to require higher values and yet give precise results?????
best regards
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Wolfgang Preuss
Tue. 21 Apr.09,
14:32
[Reply (3 of 4) to:
'GE LX MRI Platform?'
started by: 'Stuart Allison'
on Tue. 16 Sep.08]
Category:
Devices, Scanner, Machines
|
| GE LX MRI Platform? |
LX platform was starting 1997; upgrade from 5x to LX (9.1) is the whole hardware except Magnet and table, LX was the last platform for 1.oT systems. All 1.5T and 3.0T system can be upgraded to 15x ( HDxT) platform but all magnets before LCC Magnet( starting 1998) have the limitation max. 8 channels. The upgrades from 11x to 15x have new computers plus parts of gradient cabinet and system cabinet and coils. For the new 750/450 platform it is more difficult to upgrade, kompl. new hardware.
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