Biopsy guidance by electromagnetic tracking and photonic needle
First Claim
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1. A system for integrated guidance for positioning a biopsy device in a body, the system comprising:
- a tracking device for coarse guidance of the biopsy device to a biopsy location in the body; and
an analyze device for fine guidance of the biopsy device to the biopsy location in the body, wherein the fine guidance is a final precise guidance to the biopsy location more precise than the coarse guidance being an initial guidance to the biopsy location, the analyze device comprising an optical detector configured to detect structures of tissues of the body for providing visible images of the structures, and a console configured to perform a spectroscopy to obtain spectral light distributions of the tissues, wherein the visible images from the optical detector include optically obtained image boundaries of the different tissues, wherein the console and the optical detector are connected to each other, wherein the analyze device is configured to provide information for discriminating different tissues including the optically obtained image boundaries of the different tissues of the body from each other based on the visible images of the structures of the tissues combined with the spectral light distributions of the tissues;
a processor configured to combine the information for discriminating the different tissues including the optically obtained image boundaries of the different tissues obtained by the analyze device with non-invasive image-determined boundaries from an image of a non-invasive imaging device providing images of the structures to calculate a scale factor between the optically obtained image boundaries and the non-invasive image-determined boundaries, and using the scale factor to enlarge the non-invasive image-determined boundaries to fully overlap the optically obtained image boundaries to obtain new boundaries of a region of interest; and
the biopsy device comprising an elongate element and a tip portion,wherein the biopsy device is configured to be traced by the tracking device,wherein the optical detector is integrated in the tip portion of the biopsy device.
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Abstract
A system for providing integrated guidance for positioning a needle in a body has two levels of guidance: a coarse guidance and a fine guidance. The system includes a non-invasive tracking system for tracing the biopsy device in the body, for providing the coarse guidance. Furthermore, the system includes an optical detector mounted on the needle for obtaining optical information discriminating tissue in the body, for providing the fine guidance.
39 Citations
20 Claims
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1. A system for integrated guidance for positioning a biopsy device in a body, the system comprising:
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a tracking device for coarse guidance of the biopsy device to a biopsy location in the body; and an analyze device for fine guidance of the biopsy device to the biopsy location in the body, wherein the fine guidance is a final precise guidance to the biopsy location more precise than the coarse guidance being an initial guidance to the biopsy location, the analyze device comprising an optical detector configured to detect structures of tissues of the body for providing visible images of the structures, and a console configured to perform a spectroscopy to obtain spectral light distributions of the tissues, wherein the visible images from the optical detector include optically obtained image boundaries of the different tissues, wherein the console and the optical detector are connected to each other, wherein the analyze device is configured to provide information for discriminating different tissues including the optically obtained image boundaries of the different tissues of the body from each other based on the visible images of the structures of the tissues combined with the spectral light distributions of the tissues; a processor configured to combine the information for discriminating the different tissues including the optically obtained image boundaries of the different tissues obtained by the analyze device with non-invasive image-determined boundaries from an image of a non-invasive imaging device providing images of the structures to calculate a scale factor between the optically obtained image boundaries and the non-invasive image-determined boundaries, and using the scale factor to enlarge the non-invasive image-determined boundaries to fully overlap the optically obtained image boundaries to obtain new boundaries of a region of interest; and the biopsy device comprising an elongate element and a tip portion, wherein the biopsy device is configured to be traced by the tracking device, wherein the optical detector is integrated in the tip portion of the biopsy device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A biopsy device comprising:
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a position sensor configured to provide information indicative of a position of the biopsy device for providing a coarse guidance of the biopsy device to a biopsy location in a body; an optical fiber integrated in a tip portion of the biopsy device and configured to emit and receive light for providing a fine guidance of the biopsy device to the biopsy location in the body, wherein the fine guidance is a final precise guidance to the biopsy location more precise than the coarse guidance being an initial guidance to the biopsy location; and an analyze device for the fine guidance of the biopsy device to the biopsy location in the body, the analyze device comprising an optical detector configured to detect structures of tissues of the body for providing visible images of the structures, and a console configured to perform a spectroscopy to obtain spectral light distributions of the tissues, wherein the visible images from the optical detector include optically obtained image boundaries of the different tissues, wherein the console and the optical detector are connected to each other, wherein the analyze device is configured to provide information for discriminating different tissues including the optically obtained image boundaries of the different tissues of the body from each other based on the visible images of the structures of the tissues combined with the spectral light distributions of the tissues; and a processor configured to combine the information for discriminating the different tissues including the optically obtained image boundaries of the different tissues obtained by the analyze device with non-invasive image-determined boundaries from an image of an imaging device providing images of the structures to calculate a scale factor between the optically obtained image boundaries and the non-invasive image-determined boundaries, and using the scale factor to enlarge the non-invasive image-determined boundaries to fully overlap the optically obtained image boundaries to obtain new boundaries of a region of interest. - View Dependent Claims (15, 16, 17, 18)
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19. A method of positioning a biopsy device in a body, the method comprising the acts of:
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introducing the biopsy device into the body, the biopsy device comprising an optical fiber integrated in a tip of the biopsy device and configured to emit and receive light; tracing the biopsy device in the body by a non-invasive electromagnetic tracking device for providing a coarse guidance of the biopsy device to a biopsy location in the body; fine positioning the biopsy device assisted by an analyze device included in the biopsy device, the analyze device comprising the optical fiber device for providing a fine guidance of the biopsy device to the biopsy location in the body, wherein the fine guidance is a final precise guidance to the biopsy location more precise than the coarse guidance being an initial guidance to the biopsy location, the analyze device further comprising an optical detector configured to detect structures of tissues of the body for providing visible images of the structures, wherein the visible images from the optical detector include optically obtained image boundaries of the different tissues; obtaining by a console spectroscopy optical information including spectral light distributions of the tissues; discriminating different tissues including the optically obtained image boundaries of the different tissues in front of the tip of the biopsy device from information provided by the analyze device based on the visible images of the structures of the tissues combined with the spectral light distributions of the tissues; and combining the information for discriminating the different tissues including the optically obtained image boundaries of the different tissues obtained by the analyze device with non-invasive image-determined boundaries from an image of an imaging device providing images of the structures to calculate a scale factor between the optically obtained image boundaries and the non-invasive image-determined boundaries, and using the scale factor to enlarge the non-invasive image-determined boundaries to fully overlap the optically obtained image boundaries to obtain new boundaries of a region of interest. - View Dependent Claims (20)
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Specification