Newsgroup sci.techniques.mag-resonance 1148

Directory

Subject: Advanced course annonuncement -- From: Luca Minicucci
Subject: Re: MRI colloidal contrast agents -- From: David Sherrill
Subject: Re: NMR and MRI -- From: hesimon@aol.com
Subject: Medical CSI application package for Siemens SP -- From: jpeynsar@allserv.rug.ac.be (Jan Peynsaert)
Subject: FREE pH measurement booklet -- From: Bob Conner
Subject: Re: Acoustic noise during MRI scan? Why? -- From: hesimon@aol.com

Articles

Subject: Advanced course annonuncement
From: Luca Minicucci
Date: Wed, 13 Nov 1996 16:18:31 +0100
First Call
----------
H. S.Raffaele - MS Biosignal Analysis Centre
(Director: G.Comi)
First Advanced Course
THE USE OF MAGNETIC RESONANCE TECHNIQUES
IN MULTIPLE SCLEROSIS 
15-17 May 1997
Ospedale San Raffaele, Milan, Italy
Aim:	to provide updated lectures from experienced researchers 
        on the use of conventional and non-conventional MR techniques 
        to diagnosis MS and to monitor its evolution, either natural 
        or modified by treatment
Main topics:
1)	Correlations with clinical  measures of disease activity and 
        evolution
2)	MR techniques to monitor clinical trials
3)	The role of "fast" MR techniques 
4)	Imaging of the spinal cord and optic nerve 
5)	MTI, MRS and diffusion imaging 
6)	Functional MRI
7)  	Quantitative assessment of MRI lesion load 
Invited Speakers:
D. Arnold       J. Frank           P. Narayana
G.J. Barker     A.Gass             D.W. Paty
F. Barkhof      R.I. Grossman      D. Perani
I. Berry        J.V. Hajnal        M. Rovaris
A. Campi        M.P. Hartung       G. Scotti
N. Canal        M.A. Horsfield     P.S. Tofts
G. Comi         H. Larsson         J. Udupa
A. Evans        N. Losseff         S. Warach
A. Falini       P.M. Matthews      J. Wolinsky
F. Fazekas      W.I. McDonald      T.A. Yousry
M. Filippi      H. McFarland
J. Frahm        D.H. Miller
Scientific Secretariat: 
Dr Massimo Filippi 
MS Biosignal Analysis Center, Dept. of Neurology
Via Olgettina 60, 20132 Milan, Italy.
Tel: 0039-2-26433032  Fax: 0039-2-26433031
E-mail: massimo@cabserv.hsr.it
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Subject: Re: MRI colloidal contrast agents
From: David Sherrill
Date: Wed, 13 Nov 1996 16:34:44 -0500
Maribel Teixeira wrote:
> =
> I need some information regarding this issue.
> I am trying to know if there is any MRI contrast agent, aproved for
> clinical use (or in phase III studies), but in a liposomial form or
> nanospheres, nanocapsules or other colloidal form.
> I know that some industries like Squibb, Nycomed, Schering and
> Guerbet(France) heve some MRI contrast agents in the market; I just don=
=B4t
> know if they are colloidal systems ou macrocycles, for instance!
> By the way, I am a MsC student....not an industrial spy!!!
> If you can help me, please contact me by my Email:GAMI@GEMINI.CI.UC.PT
> Thank you.
Metasyn Inc. is developing a gadolinium contrast agent that binds =
to albumen upon injection.  Would this help you?
Their home page is http://world.std.com/~ztyeklar/index.html
   ...david
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Subject: Re: NMR and MRI
From: hesimon@aol.com
Date: 14 Nov 1996 07:03:14 GMT
While everyone uses the argument that patients were concerned about a
"nuclear" technique, the real reason the the n was dropped from nmr was a
potential turf battle that radiologists wanted to avoid with nuclear
medicine. They figured that if the word nuclear was there nuc med people
would claim the technology should be part of their department. 
Many of the older scientist types wanted to keep the name nmri for
historical reasons but we quickly lost to marketing types who picked up on
the hype of no nuclear in the phrase and we now use MR and MRI and MRS in
the medical field. However, the signal from the spins is still an nmr
signal to me and I regularly use that term when teaching about MR
techniques.
Howard Simon
Health Images, Inc.
Atlanta, GA
Howard E. Simon
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Subject: Medical CSI application package for Siemens SP
From: jpeynsar@allserv.rug.ac.be (Jan Peynsaert)
Date: 14 Nov 1996 11:43:14 GMT
Hello,
I am looking for a CSI-software package for a Siemens SP 1.5T. In our 
department, we have such a package pre-installed, but it has no clinical 
relevance. There are severe problems with localization and I don't 
succeed solving them. Is there anyone who has experience with a correctly 
working CSI-sequence for our scanner ?
Thanks in advance !
Jan Peynsaert
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Subject: FREE pH measurement booklet
From: Bob Conner
Date: 14 Nov 1996 12:27:53 GMT
A free pH booklet is available which contains valuable information on 
basic pH measurement theory, pH measurement techniques, selecting the 
proper pH electrode for a particular application, and a pH  
troubleshooting guide. The booklet is available from Lazar Research Labs. 
Inc. by emailing service@lazarlab.com or faxing 1-213-931-1434.  The 
booklet can also be obtained from the Lazar web site at 
http://www.lazarlab.com
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Subject: Re: Acoustic noise during MRI scan? Why?
From: hesimon@aol.com
Date: 14 Nov 1996 07:13:04 GMT
The acoustic noise that comes from the gradients in an MRI sequence does
not come from the air but from the electrons themselves as they change
direction when the gradients are switched. The faster this switching time
is the louder the gradients. Field strength also is a factor in how loud
the gradients are. 
Much work was gone into dampening the gradient noise in the last few years
and the latest state-of-the-art scanners are much quieter than older
systems. Most manufacturers recommend that ear plugs be used which will
provide about 30 dB of sound dampening. This usually takes the edge off
the noise. Sequences which are the worst are the Fast spin echo and the MR
angio sequences. 
Many scanners also provide music systems which also help to reduce the
impact of the noise. The real issue is, however, if the scan is needed for
a medical diagnosis, the patient should put up with the noise and "tunnel"
effects to get the benifits that MR can provide. 
Howard Simon
Health Images, Inc.
Atlanta, GA
Howard E. Simon
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