Method for improving the accuracy of a bronchial biopsy, and device for carrying out a method for improving the accuracy of a bronchial biopsy
AssigneeSiemens Aktiengesellschaft
InventorLutz Gündel
Life of this patent
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Abstract
A method is disclosed for improving the accuracy of a bronchial biopsy. In at least one embodiment, the method includes detecting the position and extent of a lesion to be biopsied by way of imaging methods, calculating the maximum biopsy depth with a known biopsy inaccuracy as a function of the extent of the lesion, and producing a biopsy plan on the basis of the calculated maximum biopsy depth and the position of the lesion. A device is also disclosed for carrying out the method.
Claims24
A method for improving the accuracy of a bronchial biopsy, comprising:
- detecting a position and extent of a lesion to be biopsied using at least one medical imaging method;
- determining a known biopsy inaccuracy by determining a translational error and an angular error in the biopsy, the translational error being a deviation of an actual biopsy point from an ideal biopsy point, and the angular error being a deviation of an actual biopsy direction from an ideal biopsy direction;
- calculating a maximum biopsy depth with the known biopsy inaccuracy as a function of the detected extent of the lesion, the maximum biopsy depth representing a maximum depth of hitting the lesion;
- and
- producing a biopsy plan based on the calculated maximum biopsy depth and the detected position of the lesion.
A method for improving the accuracy of a bronchial biopsy, comprising:
- detecting a position and extent of a lesion to be biopsied using at least one medical imaging method;
- determining a known biopsy inaccuracy by determining a translational error and an angular error in the biopsy, the translational error being a deviation of an actual biopsy point from an ideal biopsy point, and the angular error being a deviation of an actual biopsy direction from an ideal biopsy direction;
- calculating a maximum biopsy depth with the known biopsy inaccuracy as a function of the detected extent of the lesion;
- and
- producing a biopsy plan based on the calculated maximum biopsy depth and the detected position of the lesion, wherein the calculating the maximum biopsy depth includes,
- calculating a first maximum biopsy depth as a function of a first extent of the lesion along a first direction parallel to the bronchial wall,
- calculating a second maximum biopsy depth as a function of a second extent of the lesion along a second direction orthogonal to the first direction parallel to the bronchial wall, and
- calculating the total maximum biopsy depth as a minimum of the first maximum biopsy depth and a second maximum biopsy depth.
A device for improving accuracy of a bronchial biopsy, comprising:
- an imaging device to detect a position and extent of a lesion to be biopsied by way of at least one imaging method;
- and
- a calculation element to calculate a maximum biopsy depth with a known biopsy inaccuracy as a function of the detected extent of the lesion and a planning element to produce a biopsy plan based on the calculated maximum biopsy depth and the detected position of the lesion, the known biopsy inaccuracy being a translational error and an angular error in the biopsy, the translational error being a deviation of an actual biopsy point from an ideal biopsy point, and the angular error being a deviation of an actual biopsy direction from an ideal biopsy direction, the maximum biopsy depth representing a maximum depth of hitting the lesion.
Dependencies are inferred from the claim text.