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| Result: Searchterm 'Imaging'
found in 88 messages |
| Result Pages: 1 2 3 [4] 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
More Results:  Database (547) News Service (1520) Resources (268) |
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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 | | |
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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Dr. Sunil Aggarwal
Mon. 8 Apr.19,
23:03
[Start of:
'Wanted MRI Technologist for caribbean country'
0 Reply]
Category:
Jobs
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| Wanted MRI Technologist for caribbean country |
Looking for a licensed MRI technologist with a bachelors degree in radiography/MR who can also do mammography, and X ray for a diagnostic center. Please send CV with a list of your skills of other imaging modalities, expected salary & when can you join, if selected? This position is based in a beautiful Caribbean country. Only selected candidates will be interviewed.Please email resume on aggarwalsunil@rocketmail.com
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Steven Ford
Fri. 26 Oct.18,
02:29
[Reply (1 of 2) to:
'When to shim?'
started by: 'Matt H'
on Fri. 27 Oct.17]
Category:
General
|
| When to shim? |
you ask a complex question. Any sequence that is not a standard spin echo can benefit from shimming, but its not always worth it.
If you are scanning a knee in the center of the magnet, or nearly so, you might not see much difference in gradient echo scans, which in general are quite sensitive to shim problems. But if you are doing fat-water separation or fatsat images, you will see a difference even in this example.
Because hardware varies, its hard to say in one blanket statement for every case. For sure, do it on fatsat or fat-water imaging. The next most sensitive studies are off-center imaging such as shoulders. Beyond that, you should experiment a little. Of course, erring on the side of caution is a good idea.
Steven Ford
Professional Imaging Services, Inc.
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meike carr
Mon. 23 Oct.17,
15:48
[Start of:
'Dialysis pt and Artifacts'
0 Reply]
Category:
General
|
| Dialysis pt and Artifacts |
We are having an artifact or loss of signal when we do some dialysis patients spine work. Both of our machines are GE 1.5 and a 3t. It does not happen on all dialysis patients only a few but the images will come out completely dark. We typically do not have any issues with our spine imaging. Has anyone else had this issue or heard of this? Any suggestions on how to fix, it is worse on the 3t of course.
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