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| Result: Searchterm 'tr'
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Gary Brown
Mon. 14 Jun.21,
15:20
[Start of:
'Stents'
0 Reply]
 Category:
General
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| Stents |
Employer relates that any cardiac stent implanted after 2008 is safe on ANY MRI scanner within our system. This ranges from 0.3 Open scanners to 1.2 High field Open and 1.5 and 3T closed systems.
Contrarily, the manufacturer data on certain stents states 1.5 or 3 T ONLY, but we are urged to scan on an open if implanted after 2008. Does anyone have any type of testing documentation that this is safe? I'm not so much worried about the field strength as I am the magnetic field orientation as the defining safety issue.
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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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zach zac
Tue. 17 Nov.20,
19:54
[Start of:
'I Just got my first MRI'
1 Reply]
Category:
General
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| I Just got my first MRI |
I got an MRI earlier tonight of my head. I had to squeeze the alarm to be pulled out of it on a particular 4 minute scan. I thought it was anxiety at first but upon trying again the second time I have deduced that it in fact was electro conductivity that was messing with my heart. I was getting a heart rate of 160-180 I would estimate and heart palpitations and very hard beating in my chest. I managed to avoid the panic attack the second time so it was manageable but it did not feel safe. Can anyone explain to me what is going on here? It was very uncomfortable, and I was also feeling muscle twitching in my lower back which apparently the tech told me was common.
TL;DR I had an MRI, and it gave me heart palps and tachycardia. What is going on here? Is this normal?
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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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Brenna Bray
Tue. 10 Mar.20,
15:59
[Start of:
'Proton excitation from B0 to B1'
0 Reply]
Category:
General
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| Proton excitation from B0 to B1 |
I'm new to MRI imaging and currently taking an introductory course online. I understand that the introduction of a small magnetic field/RF pulses on top of the static magnetic field (B0) excites protons into a high energy state (B1). Does this mean that the protons are excited from a spin that is parallel to the longitudinal B0 plane to one that is antiparallel to the longitudinal B0 plane, or that the proton spin is excited from one that is aligned/polarized with B0 to one that is either parallel or antiparallel to B0 in the B1/xy plane?
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