Guidance system for localization and cannulation of the coronary sinus

Patent metadata

Field	Value
Publication number	US-11523782-B2
Application number	US-201815978702-A
Country	US
Kind code	B2
Filing date	May 14, 2018
Priority date	Apr 25, 2014
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

A high contrast instrument, such as a radiopaque portion, can be captured and/or viewed in an image that is acquired with an imaging system, such as with a fluoroscopic imaging system. A statistical model can be used to assist in identifying a possible or probable location of a target. A user may move the instrument coil to the statistically probable location of the target to, for example, perform a procedure or carry out a task.

First claim

What is claimed is:

1. A method of determining an orientation of an object, comprising:
determining by analysis of a first image a first orientation of an imageable member within a region of interest based on the analysis of the first image including the region of interest and an image of the imageable member associated with an instrument, wherein the imageable member has a shape that is configured to appear as a plurality of arcuate “u” shapes or arcuate “n” shapes in the first image, wherein the determination of the first orientation is based upon whether the plurality of arcuate “u” shapes or the plurality of arcuate “n” shapes are identified as appearing in the first image;
recalling a probable location of an ostium based upon a predetermined triangulated location of the ostium from at least one selected landmark in the first image;
displaying on a display device a target icon at the recalled probable location of the ostium; and
displaying on the display device the imageable member relative to the displayed target icon in addition to the determined first orientation of the imageable member as at least as one of the plurality of arcuate “n” shape or the plurality of arcuate “u” shape for viewing by a user;
wherein the instrument is configured to be moved by the user relative to the ostium based on the determined first orientation of the imageable member and the displayed target icon.

2. The method of claim 1 , further comprising:
acquiring a second image at a second time that is later than a first time during which the first image was acquired;
determining a second orientation of the imageable member based on an analysis of a region of interest in the second image that includes the imageable member that is associated with the instrument.

3. The method of claim 2 , further comprising:
displaying an imageable member icon representative of the first determined orientation of the imageable member at the first time relative to a displayed second determined orientation of the imageable member at least as one of the plurality of the arcuate “n” shapes or the arcuate “u” shapes for viewing by the user.

4. The method of claim 3 , further comprising:
displaying a plurality of the imageable member icon representing a plurality of previous locations of the imageable member.

5. The method of claim 3 , further comprising:
displaying the second image with at least the imageable member icon and the target icon.

6. The method of claim 1 , further comprising:
receiving a first landmark location and a second landmark location;
wherein the at least one selected landmark includes the received first landmark location and the second landmark location.

7. The method of claim 1 , further comprising:
displaying a suggested movement of the instrument as a representation with the display device relative to the imageable member in the first image.

8. The method of claim 1 , further comprising:
displaying an imageable member icon representative of the first determined orientation of the imageable member at a first time relative to a displayed current determined orientation of the imageable member at a second time that is after the first time.

9. The method of claim 1 , further comprising:
receiving image data of the imageable member; and
executing instructions with a processor to perform the analysis of the region of interest in the received image data;
wherein the received image data may be used to generate the first image for displaying.

10. The method of claim 9 , wherein determining the first orientation of the imageable member based on the analysis of the region of interest in the image data including the image of imageable member includes:
comparing the analysis of the region of interest to at least one reference image of the imageable member to a known shape;
wherein the at least one reference image includes an imaged configuration of the imageable member.

11. The method of claim 9 , wherein the shape of the imageable member is configured to include a plurality of coil peaks over a length, wherein each of the coil peaks is configured to appear as at least one of the plurality of arcuate “u” shapes or the plurality of “n” shapes in the first image; and
wherein determining the orientation of the imageable member based on the analysis of the region of interest in the image including the imageable member includes:
determining a period length of a plurality of the coil peaks of the imageable member to determine an angle of the imageable member, wherein the angle of the imageable member is between a first coil peak and a second coil peak of the plurality of the coil peaks of the imageable member,
analyzing an image shape of the imageable member in the image to determine a direction of the imageable member relative to a plane of the image, and
combining the determined angle and the determined direction to determine the orientation of the imageable member as a combination of the determined angle and the determined direction.

12. The method of claim 1 ,
wherein the imageable member is a helix coil;
wherein determining the orientation of the helix coil is based on the analysis of the region of interest in the first image including the helix coil including:
determining a period length of helix coil to determine an angle of the helix coil, wherein the angle of the helix coil is between a first portion and a second portion of the helix coil;
analyzing a shape of the helix coil in the image to determine a direction of the helix coil relative to a plane of the image; and
combining the determined angle and the determined direction to determine the orientation of the helix coil as a combination of the determined angle and the determined direction.

13. The method of claim 1 , further comprising providing the imageable member as a helical member defining at least a single helical spiral along a length operable to define a plurality of the arcuate “n” shape or the arcuate “u” shape.

14. A method of determining an orientation of an object, comprising:
determining the orientation of an imageable member based on an analysis of a region of interest in a first image including the imageable member associated with an instrument, wherein the imageable member is a helix coil;
recalling a probable location of an ostium based upon a predetermined triangulated location of the ostium from at least one selected landmark in the first image;
displaying on a display device a target icon at the recalled probable location of the ostium; and
displaying on the display device the imageable member relative to the displayed target icon with the determined orientation of the imageable member at least as one of a “n” shape or a “u” shape for viewing by a user;
wherein the instrument is configured to be moved by the user relative to the ostium based on the determined orientation of the imageable member and the displayed target icon; and
wherein determining the orientation of the imageable member includes:
determining a center longitudinal line along a distal portion of the helix coil;
determining at least one of a first line extending substantially parallel to and on a first side of the center longitudinal line or a second line extending substantially parallel to and on a second side of the center longitudinal line;
determining at least one of (i) a first period length of high contrast portions of the helix coil intersecting the first line along its length or (ii) a second period length of high contrast portions of the helix coil intersecting the second line along its length; and
calculating an angle of the helix coil based on the determined first

Assignees

• Medtronic Inc

Inventors

• Lahm Ryan P
• Drake Ronald Alan
• Schilling Eric A
• Schousek Brian W
• Shepler Mark W
• Stener Lester O

Classifications

• A61B6/12 Primary

  Arrangements for detecting or locating foreign bodies · CPC title

• A61B6/5211

  involving processing of medical diagnostic data · CPC title

• G06T2207/30101

  Blood vessel; Artery; Vein; Vascular · CPC title

• G06T7/0014

  using an image reference approach · CPC title

• A61B6/5294

  involving using additional data, e.g. patient information, image labeling, acquisition parameters · CPC title