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allen.song
BIAC Faculty
USA
35 Posts |
 Posted - Dec 01 2005 : 4:30:07 PM
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GE is wrapping up their test around 5:00 pm today, and I am waiting to get on the scanner for my final tests. Among these tests, the stability of the newly modified spiral-in pulse sequence will be a primary focus, as I have made modifications in my source code to reverse the rotation direction. If the stability holds well, Jimmy will be updating the daemons running on the various BIAC workstations to incorporate my changes in the reconstruction software to accommodate the new spiral rotation. Since we really don’t have much time to test every aspect of the reconstruction pipeline before tomorrow morning, there may be reconstruction problems for some early scans. Please keep us informed if you see anything peculiar in your images. But since your p-files will be saved, we can always re-run the reconstruction to get the right images, should there be a real problem.
Of course, all other pulse sequences should work as is.
I will make a new announcement to either confirm the uptime or request more downtime, hopefully not the latter.
Sincerely,
Allen |
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tharsh
BIAC Faculty
USA
76 Posts |
Posted - Dec 02 2005 : 9:59:01 PM
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Now that the 3T is back up, I'd ask everyone to try to examine your data as soon as possible after your scans for any image artifacts. Everything should be working fine, however, some of the problems we were having were intermittent, so testing going on now may not catch them. You don't have to fully analyze your data, but it will be easier for us if we know right away if you have dark slices or slices that randomly increase in intensity 100 fold- things that can be seen just by looking at a cine loop of your functional data.
Thanks for your help...
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Todd Harshbarger
Instructor
BIAC, Duke University
todd.harshbarger@duke.edu
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New Projected Uptime for 3T: Friday Morning
