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Result: Searchterm 'HIS'
found in 303 messages |
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More Results: Database (430) News Service (375) Resources (57) |
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Nagaraj Holalkere
Mon. 20 Mar.06, 04:52
[Reply (2 of 3) to: 'Perfusion analysis' started by: 'Pooja Jalikop' on Wed. 9 Mar.05]
Category:
Sequences and Imaging Parameters |
Perfusion analysis |
Hey Pooja,
I'm a Radiologist and interested in MR perfusion imaging of liver, pancreas, prostate and other abdominal organs. Please could you suggest any good software which can be used for this purpose. I know few but exact model used for analysis is not well discribed in those.
I appreciate ur valuable input on this.
Thanks
Nagaraj
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ugur bozkaya
Thu. 23 Feb.06, 10:10
[Reply (1 of 2) to: 'DTI FA-value' started by: 'vic chung' on Wed. 14 Sep.05]
Category:
Basics and Physics |
DTI FA-value |
L1,L2,L3 ae the eigenvalues of the corresponding tensor.
LM=(L1+L2+L3)/3
Numerator = 3*[(L1-LM)^2 + (L2-LM)^2 + (L3-LM)^2]
Denominator = 2*[L1^2 + L2^2 + L3^2]
FA = sqrt(Numerator / Denominator )
Another definition is as follows:
Numerator = [(L1-L2)^2 + (L2-L3)^2 + (L3-L1)^2]
Denominator = 2*[L1^2 + L2^2 + L3^2]
FA = sqrt(Numerator / Denominator )
Hope this helps.
ref: http://ajp.psychiatryonline.org/cgi/content/full/161/3/573
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Reader Mail
Sun. 19 Feb.06, 14:36
[Start of: 'CE-MRA Vasovist protocol' 1 Reply]
Category:
Protocols |
CE-MRA Vasovist protocol |
We will start soon with Vasovist (MS-325) for peripheral CE-MRA with moving table. Expecting higher resolution due to longer possible scan times - but discussing timing and needed post processing.
Is bolus timing needed - is fluoroscopic triggering possible - for the arterial phase?
Any experiences with this contrast agent, a good scan protocol or some good sources about Vasovist?
Anything appreciated!
Greetings
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Dan McGuan
Thu. 26 Jan.06, 01:43
[Reply (1 of 2) to: 'Upright MRA' started by: 'miri leh' on Sun. 15 Jan.06]
Category:
Applications and Examinations |
Upright MRA |
Miri Leh:
I am not completely certain, but I believe the Fonar Upright MRI can do this.
I suggest you visit their website to research the possibilities:
http://www.fonar.com/
Good Luck,
Dan McGuan
Senior Technical Specialist/President
Viable Med Services
(661) 373-1977
(800) 930-7958
http://viablemed.net/
mricentral@yahoo.com
Committed to Providing the BEST in Service
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Dan McGuan
Thu. 26 Jan.06, 01:34
[Reply (1 of 2) to: 'Help Please' started by: 'Kareem Badr' on Tue. 24 Jan.06]
Category:
General |
Help Please |
Dear Mr. Kareem Badr:
I am flattered by your comments and appreciate your interest in our exciting MRI field.
To put a simple answer to your question, "are MRI units specialized for certain applications?" Usually the answer would be no.
Imaging techniques like Cardiac, Angiography, etc. are options that can be purchased on MRI systems. From a purely sales and marketing perspective MRI system are designed with a basic package that can perform the standard MRI imaging techniques. From there, additional packages and options can be added to "upgrade" the capabilities of the scanner.
While there are a few "niche" scanners on the market that are limited to one, or to just a few techniques, for example breast imaging. Most scanners are capable, with enhancements and upgrades, of performing most imaging techniques.
Now with that said, even though all scanners are capable of running most imaging techniques, it is also important to note that some scanners may be better at a particular technique, while maybe not as good at another technique. Personal opinions and biases can create heated debates as to which systems are better for each technique. As with any other modality, there are positives and negatives with all of the scanners.
Finally, to answer your question on applications and the units that can perform the techniques, this would be a long, detailed list. What I would suggest is that you visit the websites of the major MRI manufacturers. All of the information you would need will be at these websites. I have provided website addresses of the major OEM's and additional manufacturers that design and sell MRI systems below:
1) GE Medical: http://www.gehealthcare.com/usen/index.html
2) Siemens Medical: http://www.medical.siemens.com
3) Toshiba Medical: http://medical.toshiba.com/
4) Philips Medical: http://www.medical.philips.com/index.html
5) Hitachi Medical: http://www.hitachimed.com/
6) Fonar: http://www.fonar.com/
7) Aurora Imaging: http://www.auroramri.com/
8) Magnevu: http://www.mri4ra.com/
9) Odin Medical: http://www.odinmed.com/newSite/index.html
10) Millennium: http://www.millennium.ca/medical/medical.html
11) ONI Medical: http://www.onicorp.com/website/index.htm
12) Esaote: http://www.esaote.com/products/MRI/products1.htm
13) DigiMRI: http://www.digimri.com/
14) Bruker: http://www.bruker.de/
Good luck in your research, and once again I appreciate your interest.
With Best Regards,
Dan McGuan
Senior Technical Specialist/President
Viable Med Services
(661) 373-1977
(800) 930-7958
http://viablemed.net/
mricentral@yahoo.com
Committed to Providing the BEST in Service
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