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| Result: Searchterm 'Contrast'
found in 78 messages |
| Result Pages: 1 2 3 4 5 6 [7] 8 9 10 11 12 13 14 15 16 |
More Results:  Database (373) News Service (140) Resources (28) |
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Steven Ford
Thu. 2 Dec.10,
15:18
[Reply (1 of 2) to:
'T1&T2 WAIGHTED MEANING ?'
started by: 'BINU VAEGHESE'
on Wed. 1 Dec.10]
 Category:
Basics and Physics
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| T1&T2 WAIGHTED MEANING ? |
All MRI images have contrast (the bright and the dark) that is based on properties of the tissue that's being imaged. In MRI (unlike, for example, CT) those images are based on a combination of several physical properties. So to some extent ALL MRI images are based partly on property A, property B, etc.
The tissue properties that are referred to include proton density (how many hydrogen nuclei are in a given area), motion, and two other properties that are called T1 and T2. These are properties that can be seen onloy by using the MRI instrument, much as without a microscope one cannot see inside a cell.
A T1 weighted image is one in which the differences between T1 properties of the various tissues are the predominant reason why some parts of the image are bright and others are not as bright.
This is medically useful because, since T1 and T2 are distinct properties, diseased tissue may show up different than normal tissue on either the T1 weighted scan or the T2.
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|  View the whole thread | | |
Rebecca Pitchford-Bell
Tue. 30 Nov.10,
16:19
[Reply (1 of 4) to:
'Where to get MR physicist?'
started by: 'Mitchell Sapp'
on Thu. 4 Nov.10]
Category:
Jobs
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| Where to get MR physicist? |
It's been a long time. Suggest you contact ACR for possible list but they probably won't recommend one per se, but should have a list of companies you can contact. Have Hitachi rep.or contrast rep give you a list of other sites with your equipment to contact to see who they used. Good Luck
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| | View the whole thread | | |
Rebecca Pitchford-Bell
Tue. 30 Nov.10,
16:05
[Reply (1 of 2) to:
'angio'
started by: 'Oktay DERELI'
on Sat. 31 Jul.10]
Category:
Protocols
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| angio |
TRICKS if available. This is a multipass software that allows the collection of data quickly. The contrast can be followed through multiple passes including delays to show if contrast actually does reach the toes and return to venous flow. It will show collateral vessels and help the surgeons decide direction to take.
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| | View the whole thread | | |
Mel Chang
Thu. 21 Oct.10,
19:26
[Reply (1 of 2) to:
'cervicla axial image t2 and t2*'
started by: 'kim jk'
on Thu. 23 Sep.10]
Category:
Applications and Examinations
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| cervicla axial image t2 and t2* |
T2* is fine to scan the intervertebral discs. T2 is the better choice to show small spinal cord lesions like MS plaques. The echo time of a T2* sequence may be not long enough to give a good differentiation between the pathology and surrounding tissue.rnDifferent 'Multi Echo Data Image Combination' (MEDIC) techniques have been developed to enhance contrast and pathology detection, if available on the scanner this type of sequence is maybe also a good choice, but due to longer scan times and artifact problems it is best for axial slices.rn
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| | View the whole thread | | |
rejosh george
Mon. 9 Aug.10,
23:06
[Reply (1 of 2) to:
'MR submandibular sialogram'
started by: 'Thami Mngoma'
on Fri. 7 Aug.09]
Category:
Applications and Examinations
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| MR submandibular sialogram |
if u r a siemens user use 3d space
or its much better to use carbex solution oraly as a contrast to activate the glands and do 40mm haste sag obl (planed in axial) just after the oral contrast you will get much better result
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