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| | | MRI Forum
'Proton Density' | | |
| Result: Searchterm 'Proton Density'
found in 11 messages |
| Result Pages: [1] 2 3 |
More Results:  Database (20) News Service (2) |
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Jacquelyn Chiffons
Thu. 18 Mar.10,
14:51
[Start of:
'Proton Density Imaging'
1 Reply]
 Category:
Sequences and Imaging Parameters
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| Proton Density Imaging |
Is Proton Density Imaging considered Fast Spin Echo?
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Anne Nelson
Tue. 8 May.07,
02:09
[Start of:
'Proton Density and FOV'
2 Replies]
Category:
Sequences and Imaging Parameters
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| Proton Density and FOV |
I've been told that proton density sequences don't work well with a large field of view. (approx 350-400) Is this the case, and why?
Thanks in advance,
Annika
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Gina Key
Sat. 27 Jan.24,
09:33
[Reply (1 of 2) to:
'IDEAL sequence help'
started by: 'gianluca turcatel'
on Mon. 10 Jan.22]
Category:
General
|
| IDEAL sequence help |
To calculate the Proton Density Fat Fraction (PDFF) from MRI images of the liver acquired using LMS IDEAL (Iterative Decomposition of Water and Fat with Echo Asymmetry and Least Squares Estimation) with optimized low flip angles, you'll typically have multiple image sets corresponding to different echoes. The fat and water signals are separated based on their chemical shift differences. Look for image sets labeled as Water, Fat, or PDFF (Proton Density Fat Fraction). Depending on the software or DICOM tags used, the images may be explicitly labeled, or you may need to review the sequence parameters to determine which set corresponds to fat or water.
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Imran Chunawala
Sun. 14 Jul.19,
04:14
[Start of:
'MRI-PDFF'
1 Reply]
Category:
General
|
| MRI-PDFF |
I'm a research nurse conducting a clinical research study for Non Alcoholic Steatohepatosis in which an MRI-PDFF (Proton Density Fat Fraction) is required for study participants. How is this MRI different from a regular MRI? I have called multiple MRI locations in the area and no one seems to even know the existence of such a specialized MRI.
Internet research has led me to understanding that a specialized software is needed to calculate the PDFF from the MRI images but I'm not sure how that works.
If anyone has experience with conducting such an MRI or can point me in the right direction, I would be grateful.
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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
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| 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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