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| Result: Searchterm 'MRI'
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Reader Mail
Wed. 24 Aug.11,
19:00
[Start of:
'Stent Safety and repeated MRI exposure'
1 Reply]
 Category:
Safety
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| Stent Safety and repeated MRI exposure |
We have a anesthesia tech that has a stent in her aorta. The stent is safe at 1.5t. She at times needs to stay in the MRI room with a patient during the scan. She may do this several times a month. Is there any long term effect? Can the stent become magnetized over time? Cannot find any documented information.
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Rudolfo Marques
Fri. 19 Aug.11,
12:03
[Start of:
'fmri, block design: length of "On" and "Off" periodes ?'
0 Reply]
Category:
Funktional MRI
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| fmri, block design: length of "On" and "Off" periodes ? |
Hello,
I'm planning some fmri research and I wonder why often the blocks of stimulation and nothing (or called base level or resting state) have the same length
If I let -maybe- a flickering checkerboard about 16 seconds on, as my "ON" period... then I should not need further 16 seconds resting state? DO I?
The BOLD-related effects should be away after about 2 seconds?
Thanks
Rudolfo
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Lirong TAN
Thu. 23 Jun.11,
02:44
[Start of:
'fMRI frequency range'
0 Reply]
Category:
Funktional MRI
|
| fMRI frequency range |
Hi,
I am trying to decompose the original fMRI time series into several components with different frequency ranges. I use the MODWT wavelet analysis. To obtain the components' frequencies, I need to know the frequency range of the original fMRI signal. Is it 0-1/TR?
Thanks a lot.
Lirong
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Aaliah Thomas
Thu. 26 May.11,
06:31
[Start of:
'Skills needed to become an MRI-technician'
0 Reply]
Category:
General
|
| Skills needed to become an MRI-technician |
The role MRI technician is very important as they have to operate and monitor diagnostic imaging equipments. This need special skill set. They need to be very sensitive to the patient, their stamina should be extremely high and they should be very crisp and careful in handling the instruments. More information about this can be obtained in following site. http://www.bls.gov/oco/ocos105.htm
Winners never quit and quitters never win -Anon.
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Robert Patten
Thu. 3 Mar.11,
22:08
[Start of:
'Building 3d Volumes from MRI DICOM'
4 Replies]
Category:
General
|
| Building 3d Volumes from MRI DICOM |
I have a number of MRI and CTs since a bad accident. I am a Mechanical Engineer with an electrical, power and computer background.
I was able to render the CT to 3D using Onis (not sure if you've seen this program), but have been unable to manage it with any of the MRIs.
The MRIs were taken on a Phillips Intera 1.5T
I can render a volume but only (1) of the (3) 2D images are clear before it is rendered and the resulting 3D image is just noise. I've tried various software packages and spent a lot of time with the software. Perhaps I don't have the required image files.
Maybe someone knows the answer.
Thanks,
Bob
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