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| Result: Searchterm 'tr'
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Rena Miller
Fri. 15 Aug.14,
07:16
[Reply (1 of 2) to:
'door alarm/ MRI pauses if door opens'
started by: 'Samuel Strode'
on Thu. 7 Aug.14]
 Category:
Devices, Scanner, Machines
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| door alarm/ MRI pauses if door opens |
MRIs are enclosed by a Faraday cage to shield the MRI scanner against incoming radio waves which would disturb the sent and received signals. The reception or transmission of radio waves is heavily attenuated or blocked by the cage, which is usually integrated in the walls of the scanning room. The closed RF door completes the cage preventing RFI/EMI leakage, absorbs also much of the acoustic noise and prevents unauthorized persons to enter the room. Usually, all or the unreconstructed part of information is lost if the scan is stopped by door opening. Some MRI systems allow to pause the scan (at the keyboard, not by door opening) and to continue scanning while not loosing data.
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Samuel Strode
Thu. 7 Aug.14,
22:17
[Start of:
'door alarm/ MRI pauses if door opens'
1 Reply]
Category:
Devices, Scanner, Machines
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| door alarm/ MRI pauses if door opens |
Hello all. I am a engineering student that is studying everything that I can. I came across something that said MRI's are enclosed in a room (duh) but when the scan is going the door is "armed" so if it is opened the scan pauses. Is this true for all MRI's? I work in a small imaging center and when I asked the tech there he gave me a funny look and said go back to work. Can you help? Can you tell me which MRI system that you are using and whether or not it when the door opens the scan will pause or stop. If the scan stops is the series lost? is everything? or can you pick up where you left off. Thank you for your assistance. If you have any other information about MRI's pausing during scans, stopping, saving image quality, and you are willing to share please feel free to share.
I was bold in the pursuit of knowledge, never fearing to follow truth and reason to whatever results they led, and bearding every authority which stood in their way.
Thomas Jefferson
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Steven Ford
Tue. 5 Aug.14,
19:57
[Reply (3 of 4) to:
'MRI artifact'
started by: 'Daniel Cronk'
on Mon. 16 Jun.14]
Category:
Artifacts
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| MRI artifact |
No it is not an RF leak artifact. That would appear different. I would guess that there was one instance of motion. Note that the artifact is mostly on the high contrast areas (white against black) where the patient can move the most.
Also it may be that your acquisition matrix was a little on the low side, which would lead to larger pixel-y appearance that is more apparent when there's motion.
Steven Ford
Professional Imaging Services, Inc.
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judy vitanza
Thu. 26 Jun.14,
22:46
[Reply (16 of 17) to:
'ARMRIT to ARRT pathway - - - HELP'
started by: 'Gerald Del Castillo'
on Fri. 30 Nov.07]
Category:
Organisations
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| ARMRIT to ARRT pathway - - - HELP |
You can sit for the Exam, (this is kind of a new rule). Once you pass the ARRT exam, apply for your state license. In NY, you can apply for license to inject contrast materials at the same time or after you have a state license, but you have to document RN has trained and comped you and MD signs off that you are competent.
The first step is to contact the ARRT. Just go on line google ARRT and seach MRI exam content specs, review the content specs for the exam and start studying!! Good Luck.
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Daniel Cronk
Mon. 16 Jun.14,
20:26
[Reply (1 of 4) to:
'MRI artifact'
started by: 'Daniel Cronk'
on Mon. 16 Jun.14]
Category:
Artifacts
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| MRI artifact |
http://globe-trekking.com/photos/STIR_11.jpg
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