Image Processing

Replies to This Discussion

Permalink Reply by Dr. Mohamed Refaey on May 21, 2008 at 6:33am

great work Pete..it looks amazing..I'm gonna try to do something like that..I know I'll probably fail..but gonna try anyway

Permalink Reply by Mohammad on May 21, 2008 at 10:04am

Quite nice 3D work

Permalink Reply by Bhargav Raman on May 21, 2008 at 2:17pm

I use Terarecon regularly, and it's actually not technically difficult to do it but takes a little time (the hard part is segmenting the aorta without the bone). I've started to use Osirix now, I can let you guys know how that goes.

Speaking of bone removal, I co-authored a bone removal algorithm that will be published in J Digit Imaging soon, but I don't think it's going to be used by any companies :).

Permalink Reply by Pete Burger on May 22, 2008 at 4:23am

Just remember.. I don't know where you are but Osirix is not certified for diagnosis in the States just for research and such.

TeraRecon and Vital Images and those guys do great work.. But the price.. whew !.

Permalink Reply by Bhargav Raman on May 22, 2008 at 2:49pm

Yes the price is rather prohibitive, especially for small outfits. Osirix is not certified but I believe it is being used in the US unofficially. That said, over here we have Terarecon and Vital, both of which are used frequently by radiologists and technologists.

Permalink Reply by Pixel.To.Life on June 23, 2008 at 9:17pm

Hey Bhargav,

I would be inetersted in the bone removal paper you co-authored. Is it available online?

Permalink Reply by Bhargav Raman on June 24, 2008 at 9:56pm

Here ya go (JCAT):
http://www.jcat.org/pt/re/jcat/abstract.00004728-200805000-00030.ht...!834597482!181195629!8091!-1

Permalink Reply by Pixel.To.Life on June 25, 2008 at 2:40am

Thanks, appreciate it.

Pretty interesting work. As far as I can see, one needs two seeds to start with: one in the cortical bone, the other in vessel. Right? Also, how does it fare when there are occlusions in the vessel? Example: the vessel seed chosen cannot reach some part of the vessel because of stenoses? I am still reading the paper.

I just noticed by the way that HIPAA expansion is spelt incorrectly in the article.. in the Validation section. Portability is spelt potability.

Permalink Reply by Bhargav Raman on June 25, 2008 at 2:48am

:p Yeah I noticed that on the paper heh. It mightaswell be spelled that way for all the confusion about its requirements. You are correct about the seed points. This part could be (and has unofficially been) automated, but there are problems due to variability arising from patient anatomy, scanner, contrast injection protocol and scan protocol.
Occlusions are the main problem, a new seed point must be placed after the occlusion (doesn't matter where). There has been some work on bridging occlusions by a PhD student in my lab, although I do not know how successful it is (again due to scan variability as above).

Permalink Reply by Pixel.To.Life on June 25, 2008 at 12:48pm

Please dont mind my candor about the typo. It is a great work, this paper! Good job, buddy!!

Permalink Reply by Pixel.To.Life on June 23, 2008 at 8:41pm

Hey Pete,

Which workstation did you use to generate that image?

Permalink Reply by Pete Burger on June 25, 2008 at 7:34am

my own.. I created a workstation I like much better.. Button pushers suck.. haha

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