Abstract:
A method comprises determining a predicted pose of an elongate medical device within a patient anatomy. The method further comprises extracting a plurality of reference images from 3-D reference information, wherein the plurality of reference images includes a predicted reference image corresponding to the predicted pose of the elongate medical device. The method comprises capturing an x-ray image of the patient anatomy, wherein the captured x-ray image includes captured x-ray attenuation information. The method further comprises searching for a closest matching reference image between the captured x-ray image and one of the plurality of reference images. The method comprises determining an offset between the captured x-ray image and the closest matching reference image.
Abstract:
A system for performing an interventional procedure comprises an interventional instrument and a control system. The control system comprises a processor and a memory comprising machine-readable instructions that, when executed by the processor, cause the control system to receive a model of an anatomic structure, record a target location for a target structure identified in the model, determine a planned deployment location for the interventional instrument to perform the interventional procedure on the target structure, receive sensor data including an intraoperative image of the target structure from a sensor system disposed at least partially within the anatomic structure, and identify, based on the intraoperative image of the target structure from the sensor system disposed at least partially within the anatomic structure indicating a different target location than the recorded target location, a revised deployment location for the interventional instrument to perform the interventional procedure on the target structure.
Abstract:
A processing system may comprise a central processing unit, a graphics processing unit, and a memory having computer readable instructions. The computer readable instructions may cause the processing system to obtain a reference tree of nodes and linkages based on a reference 3D volumetric representation of a branched anatomical formation in a reference state and obtain, by the central processing unit, a reference 3D geometric model based on the reference tree. The instructions may also cause the processing system to receive, by the graphics processing unit, a non-rigid transform for the nodes of the reference tree and determine, by the graphics processing unit, a rigid transform for the reference tree nodes based on the non-rigid transform. The instructions may also cause the processing system to transform each node into a deformed node, create a 3D deformation field, and create a deformed 3D geometric model of the branched anatomical formation.
Abstract:
A system for planning a procedure to be performed using an interventional instrument may comprise a sensor system that generates sensor data and a control system that may receive information about an operational capability of the interventional instrument within a plurality of passageways in a model of an anatomic structure. The control system may also identify a plurality of optional deployment locations for positioning a distal tip of the interventional instrument to perform the procedure on a target structure in the model based on at least one of the sensor data or the information about the operational capability of the interventional instrument. A display system may display the model of the anatomic structure having the plurality of passageways and display the plurality of optional deployment locations in the model. A code may be displayed that provides information about a relative quality of each of the plurality of optional deployment locations.
Abstract:
A method comprises generating an image of a set of connected passageways of a patient anatomy and modeling the set of connected passageways of the patient anatomy as a structure of linked bounded-surface elements. The method also comprises receiving position information for a point on an instrument indicating a position of the point relative to the connected passageways and generating adjusted position information for the point including comparing the received position information to the structure of linked bounded-surface elements. The method also comprises creating an adjusted instrument image with the adjusted position information and generating a composite image including the image of the set of connected passageways and the adjusted instrument image.
Abstract:
A medical system comprises a flexible instrument including a sensor adapted to provide tracking data for a point on the instrument. The medical system further comprises a memory storing images of a patient anatomy and a processor. The processor is configured to identify connected anatomical structures in the stored images of the patient anatomy, generate an anatomical centerline model from the identified connected anatomical structures, select a set of points disposed on a set of anatomical centerlines of the anatomical centerline model, generate a first plurality of cylindrical linkage elements representing the connected anatomical structures, receive the tracking data corresponding to the point on the instrument when the instrument is positioned within at least one of the connected anatomical structures, and match the point on the instrument to one of the first plurality of cylindrical linkage elements.
Abstract:
A method comprises identifying connected anatomical structures in stored images of a patient anatomy and generating a first three-dimensional model of anatomic passageways including a set of anatomical centerlines of the anatomic passageways, and generating a second three-dimensional model of the anatomic passageways including a plurality of linkage elements each including two base points defining a linkage element centerline spanning a shortest distance between the two base points. The method also comprises receiving tracking data corresponding to a point on an instrument positioned within the connected anatomical structures, matching the point on the instrument to one of the plurality of linkage elements representing one of the connected anatomical structures to locate the instrument relative to the connected anatomical structures in the stored images of the patient anatomy, and updating the matching of the point on the instrument to one of the plurality of linkage elements.
Abstract:
A method of tracking a medical instrument comprises receiving a model of an anatomical passageway formation and receiving a set of ordered sensor records for the medical instrument. The set of ordered sensor records provide a path history of the medical instrument. The method further comprises registering the medical instrument with the model of the anatomical passageway formation based on the path history.
Abstract:
A method comprises advancing a surgical instrument toward a target tissue. The surgical instrument includes a marker that is deposited at a location at or near the target tissue. After depositing the marker, the surgical instrument is withdrawn away from the target tissue. After withdrawing the surgical instrument, the location of the deposited marker is used to determine a trajectory of a distal end of the surgical instrument at or near the target tissue.
Abstract:
A medical robotic system and method of operating such comprises taking intraoperative external image data of a patient anatomy, and using that image data to generate a modeling adjustment for a control system of the medical robotic system (e.g., updating anatomic model and/or refining instrument registration), and/or adjust a procedure control aspect (e.g., regulating substance or therapy delivery, improving targeting, and/or tracking performance).