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| Result: Searchterm 'Device'
found in 14 messages |
| Result Pages: 1 [2] 3 |
More Results:  Database (141) News Service (96) Resources (22) |
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Jesús León
Sat. 13 May.17,
15:00
[Reply (1 of 3) to:
'GE 8 channel Body Coil Artifact'
started by: 'Arnold Somereville'
on Sun. 23 Apr.17]
 Category:
Artifacts
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| GE 8 channel Body Coil Artifact |
Please send me more images of the device to help you.
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|  View the whole thread | | |
Clifford Thornton
Thu. 30 Jun.16,
17:48
[Start of:
'Max. SAR per second - Whole Body (Normal, 1st Controlled, 2nd Control)'
0 Reply]
Category:
Safety
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| Max. SAR per second - Whole Body (Normal, 1st Controlled, 2nd Control) |
Hello fellow imaging technologists & professionals!
I'm involved in the development of a new type of cardiovascular medical device.
This device employs MRI technology/scans to power, guide, and control the medical devices and their active elements.
I conducted some research into the following question, "How much x-ray energy is allowed within a human every sec from a MRI machine?"
With regards to SAR rates, I understand that these are the upper-limits for the various settings for a full-body scan:
Normal setting: Whole body SAR - 2
1st Level Controlled: Whole body SAR - 4
2nd Level Controlled: Whole body SAR - >4
Would you agree with these calculations that I performed, and if not, why? And what would be a better way to calculate this?
For WHOLE BODY SAR:
-SO IF IN NORMAL MODE FOR MRI, THE MAX. ALLOWABLE SAR IS "2" OVER A 6 MIN. PERIOD, THEN
-6 MIN. = 360 SECONDS
-2 / 360 = 0.00555
FOR 1ST LEVEL CONTROLLED:
-SO IF IN 1ST LEVEL CONTROLLED FOR MRI, THE MAX. ALLOWABLE SAR IS "4" OVER A 6 MIN. PERIOD, THEN
-6 MIN. = 360 SECONDS
-4/ 360 = 0.01111
Other questions -- What is the difference between normal setting, 1st conrolled and 2nd controlled?
What is the clinical purpose of these various settings?
Any insights that you would be willing to share in regards to the above would be greatly appreciated!
I was trained and registred as a diagnostic echocardiographer, specializing in cardiovascular ultrasound, therefore I need help with MRI information/specifications. I am now focusing on the medical device field, but this technology/device happens to be highly dependent on MRI technology.
Any help from the group would be greatly appreciated!!
Thanks & regards,
Clifford Thornton
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Steven Ford
Tue. 31 Jan.12,
07:53
[Reply (1 of 2) to:
'IP address'
started by: 'Cathy Fick'
on Mon. 21 Nov.11]
Category:
Devices, Scanner, Machines
|
| IP address |
You need the service disk for this. If your intent is to push images to another device, you also need to know the calling titile and the port number.
Steven Ford
Professional Imaging Services, Inc.
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| | View the whole thread | | |
andrea schmidt
Mon. 6 Jul.09,
10:38
[Start of:
'question about resolution in an MRI'
0 Reply]
Category:
Basics and Physics
|
| question about resolution in an MRI |
Hello,
I have to hold a lecture about the resolution in MRIs.
My problem is, that I do not really understand if the resolution in an MRI can be compared with the "standard" resolution terms that you learn in physics. For example that the resolution equals 1/the distance of two points that you can see seperately.
Those equations go for optic devices like microscopes, right? Do they also account for an MRI?
And generally, how do you define resolution in an MRI and how can you enhance or change it in the practical use?
It would be great if you could help me. I have been looking for more information on the internet, but I didn't really find websites that answered my questions. Maybe you know some informative and helpful sites?
Thanks.
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miri leh
Tue. 1 Apr.08,
08:39
[Reply (2 of 3) to:
'scan question from a layperson'
started by: 'miri leh'
on Wed. 9 Jan.08]
Category:
Applications and Examinations
|
| scan question from a layperson |
We're talking about an open MRI, where a patient can be seated in the center of the device.
The actual position is the one shown in this image.
 actual position
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