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| Result: Searchterm 'Saturation'
found in 8 messages |
| Result Pages: [1] 2 |
More Results:  Database (54) News Service (2) |
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LUIS ALBERTO LANDA ROJAS
Tue. 28 Jan.20,
20:58
[Start of:
'DP TRS STIR'
0 Reply]
 Category:
Applications and Examinations
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| DP TRS STIR |
Hello Goodnight.
I just came across this forum, I have a Hitachi 0.3 T resonance with an Airis II system, which I have trouble doing DP with fat saturation, could someone help me? how should it be done ?????
Regards,
Luis Alberto
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Maxima Watkins
Tue. 6 May.14,
19:38
[Reply (1 of 2) to:
'Patellofemoral syndrome by MRI'
started by: 'FRANCISCO MORALES'
on Tue. 8 Apr.14]
Category:
Applications and Examinations
|
| Patellofemoral syndrome by MRI |
Hi, here is a helpful article: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2919651/ - we use proton density with fat saturation in three planes and a sagittal T1. The best protocol may be dependent on the MRI system and field strength.
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Steven Ford
Thu. 3 Mar.11,
20:28
[Reply (1 of 8) to:
'6-1.5T MAGNETS, DIFFERING GRADIENTS'
started by: 'Elise Gough'
on Wed. 23 Feb.11]
Category:
Applications and Examinations
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| 6-1.5T MAGNETS, DIFFERING GRADIENTS |
I assume that you mean a t2 fat suppressed sequence. Differing gradient strengths have only an indirect effect on these images. The fat saturation sequences require additional pulses which take time to execute; stronger gradient systems can execute these pulses faster.
If you see different results, it can be caused by a number of factors; if you can describe the differences, that would be helpful. Generally speaking, the quality of the magnet homogeneity makes a big difference. If the small FOV scans (wrist) look different from magnet to magnet, that's probably not the cause.
You should ask your MRI applications specialist about this, and pay attention to the TE and bandwidth. Are the FOV and number of steps the same?
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Janet Phillips
Fri. 29 Jan.10,
14:05
[Start of:
'Patient Hydration Level'
0 Reply]
Category:
Patient Care and Comfort
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| Patient Hydration Level |
Does the patient hydration level have an effect on MRI, particularly fat saturation?
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Matthijs Lipperts
Wed. 7 Jan.09,
11:05
[Start of:
'SPAIR movement artefact'
0 Reply]
Category:
Artifacts
|
| SPAIR movement artefact |
Dear all,
When scanning wrists in our Avanto MR always the penultimate slice in the transversal series shows a movement artefact. This happens with all patients and always the penultimate slice. We found out that using regular fat saturation this does not occur, with SPAIR (which is preferable because of the frequent susceptibility artefacts in arms/wrists) however it happens all the time. The simple solution for our radiology staff is to use normal fat saturation instead of SPAIR, however we are intriged by this problem and were hoping that anyone also experienced this problem and maybe found an explanation.
Because it happens in only 1 slice we are suspecting some kind of interference of the slice selection pulse with the SPAIR pre-pulses.
Any input is appreciated,
thanks in advance, Matthijs
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