|
Magnetic
Resonance -
Technology
Information
Portal |
Welcome to MRI Technology • |
|
|
 | Info
Sheets |
| | | | | | | | | | | | | | | | | | | | | | | | |
 | Out-
side |
| | | | |
|
| | | | | |
| Result: Searchterm 'Artifact'
found in 33 messages |
| Result Pages: 1 2 [3] 4 5 6 7 |
More Results:  Database (166) News Service (6) Resources (10) |
|
|
Neil Brice
Tue. 28 Sep.04,
04:29
[Start of:
'Machine Opening artifact'
1 Reply]
 Category:
Artifacts
|
| Machine Opening artifact |
Does anyone know anything about the artifact created by the opening of the MR. I know it is do to bending in the magnetic feild, but is there any solutions, like a simple image transform? Or is there a specific name for this problem that I could research more?
|
|  View the whole thread | Reply to this thread
(login or register first) | |
Renate Semrau
Mon. 28 Aug.23,
07:23
[Reply (1 of 2) to:
'Improving MEDIC/MERGE/M-ffe and GRE/FFE image quality'
started by: 'Dan Lopez'
on Sun. 27 Aug.23]
Category:
Sequences and Imaging Parameters
|
| Improving MEDIC/MERGE/M-ffe and GRE/FFE image quality |
Hi,
Sequences with multiple echoes are unfortunately sensitive to motion and flow artifacts, with the mFFE the echoes are still cumulated afterwards. The use of the head-neck coil provides better SNR. Important are good flow compensation, rest slab, try out foldover direction l/r vs. a/p. Shimming may help, synergy is sometimes better as clear, don't take too many slices, but maybe the signal loss is also a technical problem. Problems in the lung region are common. In short, we use 2D T2 TSE with continuous flow comp.
|
| | View the whole thread | | |
meike carr
Mon. 23 Oct.17,
15:41
[Reply (2 of 3) to:
'GE 8 channel Body Coil Artifact'
started by: 'Arnold Somereville'
on Sun. 23 Apr.17]
Category:
Artifacts
|
| GE 8 channel Body Coil Artifact |
It is hard to see the exact artifact in this picture. It almost looks like wrap to me, but again hard to determine with pic provided. What else has been done to fix this issue? Have you changed the frequency direction or opened up your FOV?
|
| | View the whole thread | | |
Desiree Dupuy
Sat. 3 Dec.16,
22:14
[Reply (2 of 3) to:
'Muscle shading in 3T Images'
started by: 'Travis Conley'
on Thu. 21 Oct.10]
Category:
Applications and Examinations
|
| Muscle shading in 3T Images |
Try running a B1 Map followed by Calibration. Set RF Drive mode to Optimized. This is supposed to optimize for your Patient. Supposed to reduce dielectric effect/shading for Lumbar and Abdomen.
You can find under GE Additional Abdomen Sequences.
Or you can run Ideal with Dixon technique. Turn on IN phase will give you T1 FS & IN Phase is you plane T1. I believe this takes care of the artifact.
|
| | View the whole thread | | |
michael perdue
Wed. 16 Dec.15,
16:05
[Start of:
'ACR BREAST IMAGING'
0 Reply]
Category:
General
|
| ACR BREAST IMAGING |
RECENTLY FAILED ACR FOR BREAST IMAGING.
I AM LOOKING FOR A GE SITE FOR ADVICE.
WE HAVE A GE 1.5T HDXT SYSTEM USING 15 XM4 SOFTWARE. OUR COIL IS A GE LIBERTY 9000 8 CHANNEL COIL.
IF YOU HAVE PASSED THE ACR WITH THIS EQUIPMENT AND DO NOT MIND SHARING INFORMATION, WE WOULD LIKE TO HEAR FROM YOU.
ACR REVIEWER REASONS FOR FAILING WAS GHOSTING, CHEMICAL SHIFT ARTIFACT, AND INHOMOGENOUS FAT SAT.
THANKS,
MIKE RT(R)(MR)
|
| | Reply to this thread
(login or register first) |
| |
| | Result Pages : 1 2 [3] 4 5 6 7 | |
|
| |
 | Look
Ups |
| |
|
MR-TIP.com uses cookies! By browsing MR-TIP.com, you agree to our use of cookies. | | | [last update: 2024-02-26 03:41:00] |
|
|
bottom
top
