Hello, Ben,
Yes this is what I mean.
I used to use, distance transform based centerline
(http://www.mathworks.com/matlabcentral/fileexchange/24531-accurate-fast-marching),
in which case, any remaining remnants, from the original artery would suffice.
This is because the distance transform finds for every point, the shortest
distance to the arterial edge (which is the arterial remnant)
However, VMTK is much more accurate, and offers other advantages.
I think that in VMTK, even less than 3/4 of the original artery's circumference
will suffice, but this is for Luca to say.
Thanks for your reply
Best regards
Haim
________________________________
From: "Berkowitz, Benjamin M" <[email protected]>
To: Haim Ezer <[email protected]>; "[email protected]"
<[email protected]>
Sent: Sunday, May 20, 2012 9:43 PM
Subject: RE: [vmtk-users] Avoiding aneurysm removal for parent artery
reconstruction
Haim,
Do you mean that the angular fraction of the artery still present (not
enveloped by the aneurysm neck), if >3/4, the centerlines would be correct
without the aneurysm removal? It makes sense that that would be true. That's
an interesting thought.
Ben
________________________________
From: Haim Ezer [[email protected]]
Sent: Sunday, May 20, 2012 12:45 AM
To: [email protected]
Subject: [vmtk-users] Avoiding aneurysm removal for parent artery reconstruction
Dear, Luca
I have a question regarding the use of vmtkcenterlines in the presence of an
aneurysm.
Is it true that if more than 3/4 of the original artery is present,
vmtkcenterlines will give a correct centerline, without aneurysm removal?
Just by selecting the source point in the arterial source and a target point in
the arterial end, while ignoring the aneurysm.
This I thought is the result of the maximum inscribed sphere being confined to
the original artery's diameter.
is this true?
I am not sure I am clear, but what I am trying to get is the true centerline
(prior to aneurysm development) without aneurysm removal. (This is since you
wrote:
"Nevertheless, while the parent artery reconstructions are plausible, it remains
to be proven that they are faithful representations of the pre-aneurysmal
artery."
in:
Ford et al, An objective approach to digital removal of saccular aneurysm:
techniques and applications. BJR, 2009, ss55-61)
If I am not clear, please tell me and I will create an image, to show what I
mean.
Thanks
Haim
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