Path for LV bridge isolation fails

[jab0707]

I am having trouble on a mesh that has worked in the past. It is failing to identify the path along the surface to find the cutoff for the LV bridge. The starting points all look fine:

However, there is no path generated for the LV bridge closest to the TV:

I am trying to dig into the createGraphandSplitMesh.m. It is failing to find a path on line 176:

path1MvAv = shortestpath(GsubLv, nodeIndexLocalMvMin80, nodeIndexLocalAv80);

I suspect it has to do with how the GsubLv was clipped. The septum definition on this mesh does not look ideal:

However, I am not sure what to change to make that septum classification more reasonable near the septal side of the MV

[jab0707]

Looking into it more, the septum definition is based on the o.m1.ridgeLaplace solution. Plotting that I see that it does indeed have a little bit in the MV valve plane that is causing the issue when the graph is split into the LV and RV parts. This part of the septum being cut out is preventing the path from being drawn. Is there a reason that the septum cannot be a part of the graphs for the LV or RV when cutting the bridges?

[jab0707]

I re-segmented a bit around the valve plane and the resulting septum classification looked better. However, it seems like this might be a bit of a fiddly step.

[lisapankewitz]

Hi @jab0707 ,
Thanks for the issue. I am currently a bit constrained as I am trying to finish up.

May I ask you how your input/boundary surfaces look like?
Thanks!