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Hi Mark,

You can accomplish this using a SCIRun::FieldsCreate::ClipByFunction module. Read in the high resolution tetrahedral mesh of the whole torso (.tvt.fld), and pass it through a ClipByFunction module, where you use the expression "(v==5 || v==6)" in the ClipByFunction UI's text-entry box. The way you can find out that material values 5 and 6 correspond to heart is by passing the full torso mesh into a BioPSE::Modeling::ModifyConductivities module and looking at the UI entries. Counting from material 0 (air), you see that "heartmuscle" and "heartchamber" correspond to material indices 5 and 6, respectively. Depending on what you're using this for, you may or may not want to also include materials 7 and 8 ("fatpad" and "vessel").

Cheers,
Dave



On Nov 21, 2005, at 11:38 AM, Svendsen, Mark C wrote:

Hello

I am trying to extract the heart points and locations for the high resolution model using the field reader and writer modulues. However, the only heart file in the high resolution folder is the utahtorso-heart.ts.fld file. This file only gives me the surface of the heart. Is there a utahtorso-heart.tvt.fld file that will give me the heart points and locations for the nodes inside the heart? Are there actually nodes in the heart or does the model only include the outside surface of the heart? Thank you.

Mark

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• [SCIRUN-USERS] Extracting Heart Points, Svendsen, Mark C, 11/21/2005
  • Re: [SCIRUN-USERS] Extracting Heart Points, David Weinstein, 11/21/2005

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