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Microcap & Penny Stocks : Fonar - Where is it going? -- Ignore unavailable to you. Want to Upgrade?


To: WebDrone who wrote (10591)7/28/1998 1:14:00 PM
From: James L. Fleckenstein  Respond to of 19354
 
I am certain that your latest round of questions are stirring up all sorts of feelings in some of the old-hand readers. Reminds me of when I came into this thread about 2 years ago, flaming Damadian for being an egomaniac and not really the inventor of MRI. Well, as we reviewed, there are substantial contributions. MAO = multiangle oblique --the "simultaneous" acquisition of non-coplanar images. This is the subject of multiple lawsuits, which have been variously settled by the infringers. I have done my best to describe the limited value of this technique but many Fonar stockholders still believe this is a hugely valuabel patent. GE and the others have indeed quit offering this software due to the suits. STIR is just a short TI inversion recovery. Everybody does it now. The trick that Leon kauffman and, apparently, Fonar, figured out a long time ago was how to get a lot of slices out of the long TR, short TI, modest TE sequence. Now, with fast spin echo, it is much easier. Also, the flow artifacts at high field were prohibitive in the early days, which is another reason this was a low-field commodity then but not now.



To: WebDrone who wrote (10591)7/28/1998 1:59:00 PM
From: James L. Fleckenstein  Read Replies (2) | Respond to of 19354
 
WebDrone, judging from email I have received over the last year, your input on MR will be greatly appreciated on this thread and I am glad to have another MR-ist here to bounce things off of. You are an engineer and are very knowledgeable about pieces of the MR device that I am not. I would like to know what systems you have worked on and what your scientific areas of interest are/were. For example were you ever a frequenter of the SMR meetings? Also, could you give your views on how Fonar is perceived as a MRI device and how Dr. D is perceived from your neck of the woods. When I described negative views with respect to the reputation of him/them, the stock-holders here acted like I was a satan-worshiper. Judging from your tongue-in-cheek comments today, it seems you are not convinced of the deity ranking frequenlty ascribed to Dr. Damadian. I have met him and I was pleasantly surprised by his manner. However, I know at least one buyer of open magnets who described him as "arrogant" and most of my physics friends are not terribly impressed by him/them. What I don't know is how much of the negative is a result of poor marketing (e.g. the abominable book) or true problems. You asked me about what Fonar can do now and I must say I am only aware of what I have seen off their 0.6T system in NY and the results are "not bad". What keeps me interested in Fonar is what will be next, 1.0T open systems, 1.5T? What do you think about the feasibility of high field open vertical systems? Thanks for your Q/A--stick around!