摘要:
A medical method and system include a medical imaging system (105) configured to generate images of an interventional procedure. An overlay generator (113) is configured to generate an overlay image on the images of the interventional procedure. An interventional device tracking system (108, 125) is configured to track a three-dimensional position, orientation and shape of the interventional device during the procedure, wherein the overlay image is dynamically updated in response to deformations caused to an organ of interest by the interventional device during the procedure.
摘要:
A telescopic endoscope employing a primary endoscope (30, 50) having a instrument channel, a miniature secondary endoscope (40, 60) deployed within the instrument channel of the primary endoscope (30, 50), and an endoscope tracker including one or more sensors (32, 61) and one or markers (41, 52) for sensing any portion of the miniature secondary endoscope (40, 60) extending from a distal end of the instrument channel of the primary endoscope (30, 50).
摘要:
An integrated optical shape sensing system and method include an arrangement structure (132) configured to receive a fiber port or connector. A platform (130) is configured to provide a distance relationship with the arrangement structure such that the fiber port or connector is trackable to provide a location reference. The platform secures a patient in proximity to the arrangement structure. An optical shape sensing enabled interventional instrument (102) has a first optical fiber cable connectable to the fiber port or connector. An optical interrogation module (108) is configured to collect optical feedback from the instrument and has a second optical fiber cable connectable to the fiber port or connector such that a known reference position is provided for accurate shape reconstruction.
摘要:
A medical device calibration apparatus, system and method include a calibration template (202) configured to position an optical shape sensing enabled interventional instrument (102). A set geometric configuration (206) is formed in or on the template to maintain the instrument in a set geometric configuration within an environment where the instrument is to be deployed. When the instrument is placed in the set geometric configuration, the instrument is calibrated for a medical procedure.
摘要:
A system for monitoring changes during therapy includes a first probing segment (112) having an optical fiber sensor disposed therein. The first segment is percutaneously inserted in or near a target area and providing a local reference for one or more treatment devices. A second probing segment (114) has an optical fiber sensor disposed therein. The second segment is generally disposed apart from the first probe and provides a spatial reference point for the first segment. The first and second segments have at least one common position to function as a reference between the first and second probes. A shape determination method (107) is configured to determine a shape of each of the first and second segments based on feedback signals to measure changes in the shapes during a procedure and update a therapy plan in accordance with the changes.
摘要:
A system and method for adaptive imaging include a shape sensing system (115, 117) coupled to an interventional device (102) to measure spatial characteristics of the interventional device in a subject. An image module (130) is configured to receive the spatial characteristics and generate one or more control signals in accordance with the spatial characteristics. An imaging device (110) is configured to image the subject in accordance with the control signals.
摘要:
A method, system and apparatus for manufacturing anatomically and functionally accurate soft tissue phantoms with multimodality characteristics for imaging studies is disclosed. The organ/tissue phantom is constructed by filling a container containing an organ having inner vasculature therein with a molten elastomeric material; inserting a plurality of rods with bumps thereupon through the container and the organ; allowing the molten elastomeric material to harden and cure; removing the organ; replacing the organ with a plurality of elastomeric segments; and removing an elastomeric segment and replacing the void created thereupon with molten PVA to create a PVA segment; allowing the molten PVA segment to harden and cure; and repeating the creation of PVA segments until all the elastomeric segments have been removed, such that each successive molten PVA segment adheres to and fuses with the previous hardened PVA segment so as to form an approximately complete organ phantom cast. The organ/tissue phantom is completed by inserting the approximately complete organ phantom cast inserting upside-down into a fixture made from the bottom-most elastomeric segment, which contains molten PVA; and allowing the molten PVA to harden and cure.
摘要:
A medical instrument, system and method for calibration are provided. The instrument includes a body (202) and a shape sensing system (204) coupled to the body to permit determination of a shape of the body. A memory element (205, 206) is coupled to the body and configured to store data associated with calibration of the body, the data being readable through a cable (210) connectable to the body so that the data permits calibration of the body.
摘要:
An optical motion sensing system (10) for use in imaging an anatomical structure employs an optical motion sensor (20) including a body contour conforming matrix (“BCCM”) (30) and an optical fiber (40). Upon BCCM (30) being adjoined to the anatomical structure, BCCM (30) structurally conforms at least partially to a surface contour of the anatomical structure for reciprocating any motion by the anatomical structure. Optical fiber (40) is at least partially embedded in the BCCM (30) for generating an encoded optical signal (42) indicative of a shape of the optical fiber (40) responsive to any SOS reciprocal motion by the BCCM (30) during an imaging of the anatomical structure. System (10) further employs a motion tracker (50) responsive to encoded optical signal (42) for periodically reconstructing the shape of optical fiber (40) with each change in the shape of optical fiber (40) representing motion by the anatomical structure.
摘要:
A reflection reduction device includes an optical fiber (104) configured for optical sensing and having an end portion. A tip portion (102) is coupled to the end portion. The tip portion includes a length dimension (d) and is index matched to the optical fiber. The tip portion is further configured to include an absorption length to absorb and scatter light within the length dimension, and a surface (S) opposite the end portion is configured to reduce back reflections.