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| Result: Searchterm 'MRI'
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More Results:  Database (561) News Service (1300) Resources (333) |
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Renate Bloemer
Mon. 13 Nov.06,
19:35
[Reply (1 of 3) to:
'Receiver Bandwidth'
started by: 'Stephanie Taylor'
on Wed. 1 Nov.06]
 Category:
Basics and Physics
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| Receiver Bandwidth |
Maybe these links will help: http://www.revisemri.com/tutorials/receiver_bandwidth/rbandwidth_files/fullscreen.htm
http://www.medical.siemens.com/siemens/en_US/rg_marcom_FBAs/files/DICpage/MRIHottopics2.pdf
http://www.ebyte.it/library/educards/mri/K-SpaceMRI.html
http://www.mr-tip.com/serv1.php?type=db1&dbs=Bandwidth
Renate Bloemer
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|  View the whole thread | | |
Renate Bloemer
Mon. 13 Nov.06,
19:29
[Reply (1 of 2) to:
'T1 FAT SAT PRE AND POS GADO'
started by: 'CLAUDIO RIBERTI'
on Tue. 24 Oct.06]
Category:
Contrast Agents
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| T1 FAT SAT PRE AND POS GADO |
The contrast agent causes this difference. Contrast agents reduce the T1 time in tissues where they have accumulated depending on blood flow and vascular permeability. Caused by this, tissues after an application of contrast agents will differ in shortening of the T1 time, and the same imaging parameters result in other image appearance.
Some helpful links for musculoskeletal imaging and Fat Sat:
http://www.moffitt.org/moffittapps/ccj/v8n3/pdf/221.pdf
http://www.medical.siemens.com/siemens/en_US/gg_mr_FBAs/files/MRI_Hot_Topics/MRI_HotTopics_Skinny_on_FatSat_engl.pdf
Hope this helps
Renate Bloemer
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Reader Mail
Mon. 30 Oct.06,
16:25
[Reply (1 of 2) to:
'interleaved slices and mean intensity difference in adjacent slices'
started by: 'Reader Mail'
on Wed. 4 Oct.06]
Category:
General
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| interleaved slices and mean intensity difference in adjacent slices |
With interleaved slice acquisition for example in each TR first the odd slices, and then the even slices are acquired. Differences in signal intensity may occur by changes between these acquisitions (like movement), especially with a long TR. In particular, for fMRI sequences with interleaved slice acquisition a slice time correction is recommended to get accurate measurements.
However, I think "large" signal intensity differences with interleaved slices (except fMRI) are rarely seen with usual sequences and sufficient processing (interpolation) algorithms.
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Paul Garcy
Sun. 22 Oct.06,
18:07
[Start of:
'Pectoral Tendon Rupture'
0 Reply]
Category:
General
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| Pectoral Tendon Rupture |
Can anyone give their opinion on this MRI wether the pec tendon is partially ruptured, fully ruptured, or intact?
 pectoral tendon
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Marco Costa
Sun. 22 Oct.06,
10:27
[Start of:
'MRA'
2 Replies]
Category:
Protocols
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| MRA |
Hello!
Is my first time in this forum! I read it a lot this forum, is very helpfull for my job!
I have a dificult in my mri machine.
First i would like to now how can i construct a bolus teste manualy! I don't have smart prep. What sequence i must use and what parameters i must choose.
Second, can you expline to me the diference between centric fill of K-space and non centric?
When is the best time to star the sequence after take the time injection.
My regards
Marco Costa
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