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| Result: Searchterm 'Contrast'
found in 78 messages |
| Result Pages: 1 2 3 4 5 6 7 8 9 10 11 [12] 13 14 15 16 |
More Results:  Database (373) News Service (140) Resources (28) |
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peter hobden
Wed. 14 Feb.07,
15:27
[Reply (1 of 2) to:
'MRI Marker'
started by: 'Tian Ming'
on Mon. 22 Jan.07]
 Category:
Applications and Examinations
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| MRI Marker |
There is a company which make MRI skin markers but they are poor for fat-sat sequences.
I have emptied oil capsules of fish oil and instead added my own ingredients into them, according to the specific sequence I use.
Try:
*Pure Water
*V V Dilute MRI contrasts
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|  View the whole thread | | |
Matt B.
Wed. 3 Jan.07,
22:29
[Start of:
'ARMRIT Parenteral Procedures'
2 Replies]
Category:
General
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| ARMRIT Parenteral Procedures |
Hi Folks,
As an ARMRIT technologist; the small clinic I work for is concerned about allowing me to contrast patients as a non-ARRT person. In Washington State, it is my understanding that RT's are legally allowed to push contrast and is common practice.
I read that ARRT now accepts MR as a primary pathway to registration, but I am concerned if I am eligible. Any advice there on the side?
It dawned on me that this may be a problem other ARMRIT's. Any tips?
Thanks a bunch!
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Renate Bloemer
Mon. 13 Nov.06,
19:46
[Reply (1 of 3) to:
'MRA'
started by: 'Marco Costa'
on Sun. 22 Oct.06]
Category:
Protocols
|
| MRA |
A test bolus helps to get the delay at which time the CE-MRA sequence has to be started. The sequence needed is a one-slice dynamic fast gradient echo sequence (if possible with fat suppression or subtraction) and a temporal resolution of 0.5 to 1.5 sec. This thick slice is placed over the vessel of interest and the dynamic is started simultaneous with a small (1-2ml) bolus of Gad.
In the follow up you can see at which time the bolus is visible. If it is not clear to differentiate, a ROI measurement will help. The starting time depends on the k-space filling. Around the peak of the highest intensity, the contrast information should be read out (with "centric" at the beginning of the sequence).
Centric k-space filling order means that the central lines of the k-space are filled in the first seconds after starting the scan. Depending on the equipment, there is more than one non-centric order, for example linear, where the central lines are filled in the middle of the scan time.
Hope this helps.
Renate Bloemer
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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
Thu. 28 Sep.06,
17:08
[Start of:
'ce enhanced mra'
0 Reply]
Category:
General
|
| ce enhanced mra |
can any one explain me the post processing of a contrast enhanced MRA in GE 1.5 WITH EXCITE TECHNOLOGY
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