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| Result: Searchterm 'SAR'
found in 22 messages |
| Result Pages: 1 [2] 3 4 5 |
More Results:  Database (62) News Service (34) Resources (14) |
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William Richardson
Tue. 20 Jun.17,
12:33
[Start of:
'MRI 1w/kg sequences Siemens Avanto FIT'
0 Reply]
 Category:
Sequences and Imaging Parameters
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| MRI 1w/kg sequences Siemens Avanto FIT |
I have recently been asked to build protocols for Spines and extremities that are 1 watt per kilogram SAR. In speaking with Applications at Siemens they inform me that I can only change certian parameters to help lower SAR but it will all be dependent upon each patient and which sequences are running. I need to present to our MRI QA commitiee if we can or if we cannot do 1w/kg SAR as we are determining if we can scan cochlear implants? Does anyone have any ideas or solutions?
Thank You
Will R.
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Renate S.
Sat. 6 Jun.15,
13:18
[Reply (1 of 2) to:
'is this kind of zebra artifact?'
started by: 'luna xu'
on Fri. 5 Jun.15]
Category:
Artifacts
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| is this kind of zebra artifact? |
Looks more like a Zipper artifact. Can be caused by electronic noise. Switch off all light bulbs, remove all electronic equipment from the scanner room, make sure that the door is really closed (clean the contacts between door and jam if necessary) and try again. If the artifact consists control the penetration panel where the cables enter the room and the faraday cage, it is possible that there is a leak in the RF shield. If the artifact remains with all coils and sequences you need the service to repair the problem.
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dimitris priovolos
Sat. 21 Dec.13,
10:14
[Reply (1 of 2) to:
'mr urography'
started by: 'elena giovanelli'
on Thu. 24 Oct.13]
Category:
Applications and Examinations
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| mr urography |
I think it's better to plan both ureters, put the pack of slices exactly coronal on an axial abdomen slice including both kidneys, take care on a sagital slice to give an angle parallel to spine but including the bladder and the space behind it, use foldover direction (siemens) or Rfov 1 (GE), fov 400-450, sl thick 0.80-1mm, open the 3d slice pack as much as needed, use navigator-pace (siemens) or triggering (GE).
A preparation of diet is needed some times, additional sequences (haste, fiesta, vibe+iv or lava+iv contr) are necessary.
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Mitchell Sapp
Sat. 5 Oct.13,
13:13
[Start of:
'ACR Compliance Question'
1 Reply]
Category:
Reimbursements and Costs
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| ACR Compliance Question |
In 2010, we submitted a knee for our MSK module in our ACR accreditation. Over the past three years, a few new radiologists have come on board, and the preferred knee protocol has changed. But we've continued using the sequences that were submitted to ACR in order to be compliant. At this point, we have three different sequences that NONE of our radiologists care about... and it's basically adding time to each procedure without being beneficial to the patient. But we HAVE to perform those scans.
We are currently getting re-accredited - but we are submitting a wrist this time for the MSK module. Once we get approved, can we drop the unnecessary sequences in the knee and be compliant since we will be using the submitted sequences in the wrist?
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Christine Woodard
Tue. 11 Oct.11,
17:52
[Reply (1 of 2) to:
'NEUROSTIMULATOR WIRES'
started by: 'Reader Mail'
on Wed. 13 Apr.11]
Category:
Safety
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| NEUROSTIMULATOR WIRES |
I had the same issue recently. According to the manufacturer, scanning is not recommended however it does state that IF the determination is made that the scan is medically necessary then the patient should be monitored closely. If the stimulator is still intact, the settings should be checked immediately following the scan.
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