Method for determining the position of an organ
DCFirst Claim
1. A method for determining the position of a patient'"'"'s organ with respect to at least two imaging devices, including the following steps:
- making at least one 3D first image of an organ of a patient having a first coordinate system and of a surface of the organ or skin region with a first imaging device while the patient is in a pre-operation site without fixing any mark to the patient;
placing the patient in an operation site having a second coordinate system;
determining a first position of a second imaging device with respect to the second coordinate system of the operation site;
making a second image with said second imaging device, the second image corresponding to a cloud of points of the surface of the organ or skin region;
matching the at least one 3D first image and the second image where the at least one 3D first image is located with respect to the first coordinate system of the patient; and
providing a third device having a third coordinate system in the operation site and determining a first position of the third device with respect to the second image of the second imaging device, whereby the third coordinate system of the third device is positioned with respect to the second image of the second imaging device and thereby with respect to the at least one 3D first image from the first imaging device.
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Abstract
A method for determining the position of a patient'"'"'s organ with respect to at least two imaging devices includes a step of making at least one three-dimensional first image of an organ of a patient giving a first coordinate system and of a surface of the organ or skin region using a first imaging device without fixing any mark to the patient, placing the patient in an operation site having a second coordinate system and determining a first position of a second imaging device with respect to the second coordinate system of the operation site. In addition, the method includes the steps of making a second image with the second imaging device, matching the first and second images and providing a third device having a third coordinate system. The third device is positioned with respect to the second image of the second device which thereby positions the third device with respect to the first image of the first imaging device.
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Citations
10 Claims
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1. A method for determining the position of a patient'"'"'s organ with respect to at least two imaging devices, including the following steps:
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making at least one 3D first image of an organ of a patient having a first coordinate system and of a surface of the organ or skin region with a first imaging device while the patient is in a pre-operation site without fixing any mark to the patient; placing the patient in an operation site having a second coordinate system; determining a first position of a second imaging device with respect to the second coordinate system of the operation site; making a second image with said second imaging device, the second image corresponding to a cloud of points of the surface of the organ or skin region; matching the at least one 3D first image and the second image where the at least one 3D first image is located with respect to the first coordinate system of the patient; and providing a third device having a third coordinate system in the operation site and determining a first position of the third device with respect to the second image of the second imaging device, whereby the third coordinate system of the third device is positioned with respect to the second image of the second imaging device and thereby with respect to the at least one 3D first image from the first imaging device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for determining the position of an organ of a patient using at least two imaging devices, comprising the steps of:
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making a first image of the organ with respect to a first coordinate system using a first imaging device; placing the patient with respect to a second coordinate system; determining a first position of a second imaging device with respect to the second coordinate system; making a second image with said second imaging device; matching the first image and the second image; and providing a third device having a third coordinate system and determining a first position of the third device with respect to the second image of the second imaging device, the third coordinate system of the third device positioned with respect to the second image of the second imaging device and with respect to the first image from the first imaging device.
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Specification