1. ## patient wire contour

Hello,

Even when heterogeneity corrections are turned off, the system converts the patient data to an electron density matrix. When calculating with a homogeneous patient, the electron densities of the pixels inside the patient wire contour are set to 1.0 and outside are set to 0.0.

What does "patient wire contour" mean here?

Thanks

2. ## Re: patient wire contour

***Not a teacher***

OK - this is a bit of a guess, but assuming this is related to your other post recent post....

I think a wire contour may be something like the following:

So the snippet of the article you are quoting is talking about how a patient is represented as a model on a computer as an electron density matrix. If the density is set to 0, there is an absence of body matter, and if it is set to 1, this indicates the presence of body matter. Therefore it is necessary to set these densities according to whether they are inside or outside the wire contour (as this represents the surface of the body, where there is matter inside, but not outside).

As I said, it's just a guess.

3. ## Re: patient wire contour

This is techno-jargon.

A wire contour is a representation of the shape of a three-dimensional object as if the outer surface of the object were overlaid by a grid of intersecting wires. For example, the following web page includes an image of a pepper and a wire contour of the same pepper:

Flickr: mevika's Photostream

So the "patient wire contour' is your medical device's representation of the shape of the patient's body surface (or perhaps some part of the patient's body) as a grid of wires. Points are either inside or outside the grid, and are treated differently for purposes of calculation.

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