Three-Dimensional Image Segmentation Based on a Two-Dimensional Image Information
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Abstract
The invention relates to a data processing method of determining a transformation for transforming medical image data into a positional reference system, the method being executed by a computer and comprising the following steps: a) acquiring, from a medical imaging apparatus (5), medical image data comprising medical image information describing a two-dimensional image of an anatomical body part (1); b) acquiring medical image selection data comprising medical image selection information describing a selection (4) from the medical image information; c) acquiring imaging apparatus characteristic data comprising imaging apparatus characteristic information describing an imaging characteristic of the medical imaging apparatus (5); d) determining, based on the medical image data, medical image selection data and imaging apparatus characteristic data, selection position data comprising selection position information describing a three-dimensional position of an anatomical structure (2) in the anatomical body part (1) corresponding to the selection from the medical image information.
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Citations
27 Claims
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1-14. -14. (canceled)
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15. A navigation system for a medical procedure, comprising:
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a computer configured to execute a computer-implemented method of determining a transformation for transforming medical image data into a positional reference system, the method comprising executing, on the processor, steps of; a) acquiring, at the processor and from a medical imaging apparatus, medical image data comprising focused medical image information describing a two-dimensional image of an anatomical body part; b) acquiring, at the processor, medical image selection data comprising medical image selection information describing a selection from the medical image information; c) acquiring, at the processor, imaging apparatus characteristic data comprising imaging apparatus characteristic information describing an imaging characteristic of the medical imaging apparatus, wherein the medical imaging apparatus characteristic information comprises optical characteristic information describing the focal length of the medical imaging apparatus; and d) determining, by the processor and based on the focused medical image data, medical image selection data and optical characteristic information, selection position data comprising selection position information describing a three-dimensional position of an anatomical structure in the anatomical body part, the anatomical structure corresponding to the selection from the medical image information; the navigation system further comprising a detection device for detecting the position of the medical imaging apparatus; and a data interface for receiving information about the position of the medical imaging apparatus for supplying that information to the computer.
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16. A computer-implemented medical method creating a positional reference system, the method comprising executing, on a processor of a computer, steps of:
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a) acquiring, at the processor and from a medical imaging apparatus, medical image data comprising focused medical image information describing a two-dimensional image of an anatomical body part; b) acquiring, at the processor, medical image selection data comprising medical image selection information describing a selection from the medical image information; c) acquiring, at the processor, imaging apparatus characteristic data comprising imaging apparatus characteristic information describing an imaging characteristic of the medical imaging apparatus, wherein the medical imaging apparatus characteristic information comprises optical characteristic information describing the focal length of the medical imaging apparatus; and d) determining, by the processor and based on the medical image data, medical image selection data and optical characteristic information, selection position data comprising selection position information describing a three-dimensional position of an anatomical structure in the anatomical body part, the anatomical structure corresponding to the selection from the medical image information. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A non-transitory computer-readable program storage medium storing a program which, when running on a processor of a computer or when loaded into a memory of the computer, causes the computer to perform a computer-implemented method of determining a transformation for transforming medical image data into a positional reference system, the method comprising executing, on a processor of a computer, steps of:
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a) acquiring, at the processor and from a medical imaging apparatus, medical image data comprising focused medical image information describing a two-dimensional image of an anatomical body part; b) acquiring, at the processor, medical image selection data comprising medical image selection information describing a selection from the medical image information; c) acquiring, at the processor, imaging apparatus characteristic data comprising imaging apparatus characteristic information describing an imaging characteristic of the medical imaging apparatus, wherein the medical imaging apparatus characteristic information comprises optical characteristic information describing the focal length of the medical imaging apparatus; and d) determining, by the processor and based on the medical image data, medical image selection data and optical characteristic information, selection position data comprising selection position information describing a three-dimensional position of an anatomical structure in the anatomical body part, the anatomical structure corresponding to the selection from the medical image information. - View Dependent Claims (27)
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Specification