Research Article

Postangioplasty Restenosis Followed with Magnetic Resonance Imaging in an Atherosclerotic Rabbit Model

Figure 4

Example of the GVF snake algorithm. (a): A coarse approximation is drawn in the first M2DI slice. (b, c) The final position of the snake in this slice (b), corresponding to the inner boundary of the vessel wall, is transferred to the next M2DI slice and also to the first PDW slice (c). (d, e): The final position of the snake in this image (d) represents the outer border of the vessel wall, and the area between the two snakes (e) is a measure of the wall thickness.
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(a)
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(b)
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(c)
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(d)
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(e)