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| Result: Searchterm 't2'
found in 67 messages |
| Result Pages: 1 2 [3] 4 5 6 7 8 9 10 11 12 13 14 |
More Results:  Database (155) News Service (28) Resources (5) |
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Kimberly Wilridge
Wed. 27 Sep.23,
19:37
[Reply (1 of 2) to:
'GE Signa - 17,18,19 Phantoms Found looking for 1'
started by: 'Kimberly Wilridge'
on Fri. 26 Jul.13]
 Category:
Coils
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| GE Signa - 17,18,19 Phantoms Found looking for 1 |
I submitted this question years ago. Answer to this question and anyone else with an issue in SNR testing is: it was the phantom. GE coils as with all coils have SET phantoms that should be used due to the system programming. It looks for the gaps/spaces between the phantom balls, blocks, etc. At that time of question above the FE doing the testing was using USAI phantoms (which are large blocks) and GE CTL phantoms are small/mid size balls contained in an acrylic piece. After complete rebuild of 25 CTL's figured I got bench testing these things down to a science, with T1/T2 values higher than OEM. I can thank that FE, because it made me improve my reverse engineering skills, which I've applied to so much since then.
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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
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| 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.
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Naji Kerio
Tue. 2 Mar.21,
21:17
[Start of:
'Need to check for my middle/inner ear on my MRI'
0 Reply]
Category:
General
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| Need to check for my middle/inner ear on my MRI |
Hello. I'm new to this forum and I was wondering if I can share MRI images for a professional's opinion here. If not here, I'd like to know whether there is a forum for this. rnrnI have been having serious vertigo issues (intense spinning) for weeks. Although it has improved dramatically and still is in terms of the nausea and the vertigo attacks, I'm still experiencing regular dizziness, and looking sideways and driving is a bit tricky. I suspected it could have something to do with the inner or middle ear, so I had a brain MRI and made sure to ask for analysis of the inner and middle ear and any associated nerves. When I picked up my MRI results today, all that showed as abnormal was the sinuses with cyst in the right sphenoid sinus. To make sure the middle and inner ear were analyzed I asked the desk woman. She didn't know, made some calls and found out they apparently were not analyzed. rnrnI got the CD, retrieved my ancient PC laptop that is turtle slow and tried to check for images. Don' t know what to check for and having difficulty navigating. The images are divided into T1 TSE Ax, T2 FS AX, T2 AX SPACE IA, FLAIR COR, 2 image fors DIFF AX (ANGLE, and mIP images. I'm specifically trying to rule out conditions that sounded a lot like what I'm experiencing: labyrinthitis and vestibular neuritis. Thank you.
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Dylan Swanson-Wood
Sat. 23 May.20,
01:34
[Reply (1 of 2) to:
'Prostate'
started by: 'Kelly Baker'
on Tue. 14 May.19]
Category:
Protocols
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| Prostate |
We scan on a 3T, our protocol is 22 minutes. T2 cor/sag, T1 full pelvis, Diffusion, post contrast dynamic imaging.
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| | View the whole thread | | |
kulas diana
Fri. 28 Apr.17,
14:59
[Start of:
'C.spine ACR protocol for Aries II'
0 Reply]
Category:
General
|
| C.spine ACR protocol for Aries II |
Im having difficulty producing a good quality exam to pass ACR accreditation for Aries II .3T open.
can someone give me any tips pls.
specially the
T2 sag
Slice thickness must be <3.0mm
GAP< 1.0mm
In plane pixel(read)<1mm
In plane pixel(phase)<1mm
Pixel are<1
I Cant get it in specs. without going over this numbers
thanks in advance
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