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| Result: Searchterm 'MRA'
found in 28 messages |
| Result Pages: 1 2 3 [4] 5 6 |
More Results:  Database (66) News Service (15) Resources (18) |
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Al Berthiaume
Tue. 13 Jan.09,
19:50
[Start of:
'Siemens TRIO sequences'
1 Reply]
 Category:
Protocols
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| Siemens TRIO sequences |
I'm looking for Siemens Trio tried and tested sequences. Specifically, MRA COW, MRV-head and a T2 SPACE of the shoulder.
Anyone...?
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German Villegas
Tue. 14 Oct.08,
22:11
[Reply (3 of 4) to:
'Contrast MRA COW.'
started by: 'Marilia White'
on Thu. 3 Mar.05]
Category:
Contrast Agents
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| Contrast MRA COW. |
Just came from an MRI convention by Bill Faulkner according to him CE MRA COW is a very Diagnostic exam, no undesireble veins! I thought the same but it appears this exam has proven to be valuable in the diagnosis of oclusions, stenosis and aneurysms. I do not have a protocol, but am working to build one. I will post suggestions once I got something that works. Bill did mention it must be a dynamic scan quick enough to show arterial flow and then venous, so no more than 10 seconds per scan. Very few centers and hospitals offer this protocol but its in the works.
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Gerald Del Castillo
Mon. 21 Jan.08,
23:39
[Reply (2 of 17) to:
'ARMRIT to ARRT pathway - - - HELP'
started by: 'Gerald Del Castillo'
on Fri. 30 Nov.07]
Category:
Organisations
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| ARMRIT to ARRT pathway - - - HELP |
I currently work with an open magnet. It's by Siemens Magnetom Concerto. The system is an open unit, low field magnet. I have almost 2 years experience as an MRI Technologist, with experience on head & neck imaging, upper and lower extremities, MRA and MRV. I am also CPR and IV certified. In addition, I have 1 month training with the Siemens trio 3T closed unit.
Without the ARRT certification, it has been a challenge. I am willing to show clinics and private facilities what I'm a capable of doing most scans and my dedication to the MRI community, but with only ARMRIT certified tech, it's so rare to get opportunities.
Hope you can help, thanks.
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| | View the whole thread | | |
Behrouz Rahimpour
Mon. 5 Feb.07,
19:25
[Start of:
'dedicated vascular coil'
1 Reply]
Category:
Coils
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| dedicated vascular coil |
Hi All:
Looking for Echelon Hitachi info. if in use, is there any dedicated vascular coil for MRA/MRV?
Also pros & cons of that system.
Thanks
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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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