Merging parametric active contours within homogeneous image regions for MRI-based lung segmentation.

Merging parametric active contours within homogeneous image regions for MRI-based lung segmentation.

Inhaled hyperpolarized helium-3 (3He) gas is a new magnetic resonance (MR) contrast agent that is being used to study lung functionality. To evaluate the total lung ventilation from the hyperpolarized 3He MR images, it is necessary to segment the lung cavities. This is difficult to accomplish using...

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Bibliographic Details
Published in:IEEE Transactions on medical imaging 22, 2 (2003).
Main Author: Ray, N.
Format: Article
Language:English
Subjects:
sup 3/He.
MRI-based lung segmentation.
Boundary condition.
Evolving contours.
External force field.
Fluid flow.
Force field.
Functional air space.
High curvature features.
Homogeneous image regions.
Hyperpolarized /sup 3/He MR images.
Inhaled hyperpolarized helium-3 gas.
Lung cavities.
Lung functionality.
Magnetic resonance contrast agent.
Merging.
Parametric active contours.
Partial differential equations.
Porous media.
Proton /sup 1/H MR images.
Smooth boundary.
Synthetic images.
Total lung air space.
Total lung ventilation.