Jigs for use in medical imaging and methods for using thereof

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;
• 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, from a second imaging modality, at least (i) a first image of the jig in a first pose of second imaging modality and (ii) a second image of the jig in a second pose of second imaging modality, wherein the jig is positioned in proximity to a body of a patient;
• generating at least two augmented bronchograms, wherein a first augmented bronchogram corresponds to the first image of the second imaging modality in the first pose, and wherein a second augmented bronchogram corresponds to the second image of the second imaging modality in the second pose,
• determining mutual geometric constraints between:
• (i) the first pose of the of second imaging modality, and
• (ii) the second pose of the of second imaging modality,
• estimating the first pose of the of second imaging modality and the second pose of the of second imaging modality,
• wherein the estimation is performed using:
• (i) the first augmented bronchogram,
• (ii) the second augmented bronchogram, and
• (iii) the at least one element, and
• wherein the estimated first pose of the of second imaging modality and the estimated second pose of the of second imaging modality meets the determined mutual geometric constraints,
• generating a third image;
• wherein the third image is an augmented image derived from the second imaging modality which highlights an area of interest,
• wherein the area of interest is determined from projecting data from the estimated first pose and the estimated second pose.