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MRI is trending to low field magnets :
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Gee Del

Thu. 7 Jan.10,
04:37

[Start of:
'Contrast regulation/Law'
1 Reply]

 
  Category: 
Contrast Agents
 
Contrast regulation/Law
Does anybody know if there is a regulation regarding the doctors need to be present or within the premises during contrast inject for safety purposes? If somebody can provide an article or link regarding regulations or laws during this process.
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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
 
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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James R

Tue. 29 Dec.09,
20:42

[Reply (1 of 4) to:
'contrast administration'
started by: 'Reader Mail'
on Sun. 27 Dec.09]

 
  Category: 
Contrast Agents
 
contrast administration
its 0.2 ml per kg of body weight
and
1 kg is 2.2 lbs

so for 145lb patient

145/2.2 = 65.9 kg

65.9 kg x 0.2 ml = 13.18 ml

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N P

Fri. 18 Dec.09,
04:39

[Reply (5 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
Ok. How about reading the thread before posting. We're not asking how a 180 rephasing pulse works. INVERSION VS REPHASING CONCERNING COHERENCE.
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sivagami samy

Thu. 26 Nov.09,
13:31

[Start of:
'EPILEPSY -MRI'
2 Replies]

 
  Category: 
Applications and Examinations
 
EPILEPSY -MRI
sir/ Madam,
i am m.phil student, today only i register here. i need one help. i need brain MRI image of the patients who affected by epilepsy. i need lot of images or my research. So anybody help me how to get those images.. if you have the images please send me. it will help me a lot.. i expect a good result from this forum members.i feel very happy to join in this site. waiting for reply...
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