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| Result: Searchterm 't1'
found in 54 messages |
| Result Pages: 1 2 [3] 4 5 6 7 8 9 10 11 |
More Results:  Database (172) News Service (18) Resources (5) |
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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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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
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| 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.
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John Smith
Wed. 11 Nov.15,
22:14
[Start of:
'Faster pulse sequences'
0 Reply]
Category:
General
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| Faster pulse sequences |
Hi,
I have been learning about faster MRI sequences and have two questions
1) With "Fast (Turbo) gradient echo", in which we apply a spoiler gradient, do we not eventually end up with no longitudinal magnetization because TR is always shorter than T1? Hence shouldn't we eventually get no signal at all?
2) in SSFP (Steady-state free precession) we can apply an RF pulse of 90 degrees (in which T1>>T2) to get heart-blood contrast. How is this any different to a standard spin-echo sequence in terms of timing?
Thank you
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