Jigs for use in medical imaging and methods for using thereof
A device for use during a medical imaging process, the device including a support structure and a plurality of radiopaque markers, the support structure configured to be positioned in proximity to at least a portion of a body of a patient during the medical imaging process, the plurality of radiopaque markers attached to the support structure, the plurality of radiopaque markers being positioned in a pattern such that an image capturing a given portion of the pattern is unique from an image capturing any other given portion of the pattern.
1 . A method, comprising:
providing a jig including a support structure and a plurality of radiopaque markers attached to the support structure, the support structure configured to be positioned in proximity to at least a portion of a body of a patient during a medical imaging process, the plurality of radiopaque markers being positioned in a pattern such that an image capturing a given portion of the pattern is unique from an image capturing any other given portion of the pattern;
obtaining a first image from a first imaging modality,
wherein the first image shows a first at least a portion of a body of a patient;
extracting at least one element from the first image from the first imaging modality, wherein the at least one element comprises an airway, a blood vessel, a body cavity, or any combination thereof;
obtaining a second image from a second imaging modality,
wherein the second image shows at least a portion of a jig and a second at least a portion of the body of the patient positioned in proximity to the at least a portion of the jig,
wherein the jig includes a support structure and a plurality of radiopaque markers attached to the support structure,
wherein the support structure is configured to be positioned in proximity to at least a portion of a body of a patient during a medical imaging process, and
wherein the plurality of radiopaque markers are positioned in a pattern such that an image capturing a given portion of the pattern is unique from an image capturing any other given portion of the pattern, and
wherein the at least a portion of the jig includes at least some of the plurality of radiopaque markers;
estimating a pose of the second image from the second imaging modality, wherein the estimating is performed based at least on known positions of the at least some of the plurality of radiopaque markers;
generating a third image; wherein the third image is an augmented image derived from the second image from the second imaging modality,
wherein the augmented image highlights an area of interest, and
wherein the area of interest is determined by projecting the at least one element onto the second image based at least on a projection of the first image onto the pose of the second image.
2 . The method of claim 1 , further comprising:
tracking the jig to identify a trajectory of the second imaging modality.
3 . The method of claim 1 , further comprising:
registering the second image from the second imaging modality to the first image from the first imaging modality.
4 . The method of claim 3 , wherein the step of registering the second image from the second imaging modality to the first image from the first imaging modality comprises a coarse registration step and a fine registration step.
5 . The method of claim 3 , wherein the step of registering the second image from the second imaging modality to the first image from the first imaging modality is based at least on the known positions of the at least some of the plurality of radiopaque markers.
6 . The method of claim 3 , wherein the projecting the at least one element onto the second image based on the projection of the first image onto the pose of the second image is performed based at least on the registration of the second image to the first image.
7 . The method of claim 1 , wherein the first image is a preoperative image.
8 . The method of claim 1 , wherein the second image is an intraoperative image.
9 . The method of claim 1 , further comprising:
receiving an indication of the area of interest on the first image.
10 . The method of claim 1 , wherein the area of interest comprises at least one of an incision point, a bifurcation, a blood vessel, a bronchial airway, a rib, an organ, a vertebra, or a diaphragm.
11 . The method of claim 1 , wherein the pattern includes one of (a) concentric circles or (b) a pattern of points arrayed along lines.
12 . The method of claim 1 , wherein the pattern is generated using linear feedback shift registers.
13 . The method of claim 12 , wherein the pattern is generated using XOR cross connection of two one-dimensional linear feedback shift register gold-codes with different principal polynomials of the same order and N×M register stages.