Image guided liver interventions based on magnetic tracking of internal organ motion
First Claim
1. A method of providing image guidance for use in an organ or area of interest subjected to motion, said method comprising the steps of:
- a. acquiring a three-dimensional image of the organ or area of interest of the subject with at least two imageable, visible markers and at least one magnetically tracked marker in place;
b. acquiring a three-dimensional image of the organ or area of the subject with at least two imageable, visible markers and at least one magnetically tracked marker in place;
c. correlating a magnetic field space to the three-dimensional image space;
d. providing an overlay of a magnetically tracked probe in the three-dimensional image space;
e. planning a path to a target within the organ or area of interest within the subject; and
f. proceeding along the planned path, wherein the probe is tracked along the planned path.
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Abstract
Described is a method of providing image guidance for use in an organ or area of interest subjected to motion that includes acquiring a three-dimensional image of the organ or area of interest of the subject with at least two imageable, visible markers and at least one magnetically tracked marker in place, acquiring a three-dimensional image of the organ or area of the subject with at least two imageable, visible markers and at least one magnetically tracked marker in place, correlating a magnetic field space to the three-dimensional image space, providing an overlay of a magnetically tracked probe in the three-dimensional image space, planning a path to a target within the organ or area of interest within the subject, and proceeding along the planned path.
206 Citations
19 Claims
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1. A method of providing image guidance for use in an organ or area of interest subjected to motion, said method comprising the steps of:
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a. acquiring a three-dimensional image of the organ or area of interest of the subject with at least two imageable, visible markers and at least one magnetically tracked marker in place;
b. acquiring a three-dimensional image of the organ or area of the subject with at least two imageable, visible markers and at least one magnetically tracked marker in place;
c. correlating a magnetic field space to the three-dimensional image space;
d. providing an overlay of a magnetically tracked probe in the three-dimensional image space;
e. planning a path to a target within the organ or area of interest within the subject; and
f. proceeding along the planned path, wherein the probe is tracked along the planned path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of providing image guidance for use in an organ or area of interest subjected to motion, said method comprising the steps of:
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a. acquiring a three-dimensional image of the organ or area of the subject in interest with at least three imageable, visible markers and at least one magnetically tracked marker in place;
b. generating a magnetic field in an area of the organ or area of interest;
c. recording the position of the imageable, visible markers and the magnetically tracked marker in the generated magnetic field;
d. correlating the three-dimensional image space with the magnetic field space;
e. introducing a magnetically tracked probe into the area of the organ or area of interest;
f. tracking the probe as it moves in the organ or area of interest;
g. planning a path to a target; and
h. proceeding along the planned path to the target through use of a graphical user interface.
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17. A method of providing image guidance for use in an organ or area of interest subjected to motion, said method comprising the steps of:
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a. acquiring a CT image of the organ or area of the subject in interest with at least three imageable, visible markers and at least one magnetically tracked marker in place;
b. generating a magnetic field in an area of the organ or area of interest;
c. recording the position of the imageable, visible markers and the magnetically tracked marker in the generated magnetic field, wherein the position of the imageable, visible markers are recorded through use of a magnetically tracked probe;
d. correlating the three-dimensional image space with the magnetic field space;
e. introducing a magnetically tracked probe into the area of the organ or area of interest;
f. overlying an image of the CT scan with the position of the magnetically tracked probe;
g. tracking the probe as it moves in the organ or area of interest, whereby the position of the magnetically tracked probe with respect to the image of the CT scan is updated in real-time;
h. planning a path to a target by using identifying a skin entry point and a target; and
i. proceeding along the planned path to the target through use of a graphical user interface which indicates at least the proximity of the magnetically tracked probe to the skin entry point. - View Dependent Claims (18, 19)
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Specification