Affected region display based on a variance parameter associated with a medical device

• US 10,820,944 B2
• Filed: 01/29/2018
• Issued: 11/03/2020
• Est. Priority Date: 10/02/2014
• Status: Active Grant

• Current Assignee: Inneroptic Technology, Inc.
• Original Assignee: Inneroptic Technology, Inc.
• Inventors: State, Andrei, Kohli, Luv, Razzaque, Sharif, Heaney, Brian
• Primary Examiner(s): Hajnik, Daniel F
• Application Number:
  US15/882,709
• Publication Number:
  US 20180263713A1
• Time in Patent Office: 1,009 Days
• CPC Class Codes: A61B 2034/2048 using an accelerometer or inertia sensor
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2090/365 augmented reality, i.e. correlating a live optical image with another image
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 34/25 User interfaces for surgical systems
• CPC Class Codes: G06T 19/00 Manipulating 3D models or images for computer graphics
• CPC Class Codes: G06T 2210/41 Medical

Abstract

A system and method for providing image guidance for placement of one or more medical devices at a target location. The system can be used to determine one or more affected regions corresponding to the operation of one or more medical devices and display at least a portion of the one or more affected regions. The affected regions can correspond to predicted affected regions and/or dynamic affected regions and can be based at least in part on a variance parameter of the medical device.

Claims

1. A method, comprising:

receiving first emplacement data corresponding to a first medical device;

determining an emplacement of a virtual medical device with respect to a point-of-view location based at least in part on the first emplacement data, wherein the virtual medical device corresponds to the first medical device;

determining a first estimated ablation volume based at least in part on real-time ablation data associated with the first medical device and the first emplacement data;

receiving operating parameters corresponding to the first medical device, the operating parameters comprising a variance parameter that corresponds to a margin of error associated with said determining the first estimated ablation volume;

determining a second estimated ablation volume based at least in part on the variance parameter and the first emplacement data, wherein a size of the second estimated ablation volume is different from a size of the first estimated ablation volume; and

causing one or more displays to display;

a perspective view of at least a portion of the virtual medical device,

a perspective view of the first estimated ablation volume, and

a perspective view of the second estimated ablation volume.

2. The method of claim 1, wherein the second estimated ablation volume corresponds to at least one of a smallest-possible ablation volume of the first medical device based on the operating parameters or a largest-possible ablation volume of the first medical device based on the operating parameters.

3. The method of claim 1, wherein portions of the second estimated ablation volume that are closer to a surface of the second estimated ablation volume are displayed at a different opacity than portions of the second estimated ablation volume that are farther away from a surface of the second estimated ablation volume.

4. The method of claim 1, wherein the point-of-view location comprises at least one of a location of a user, an expected location of the user, or a fixed location relative to the one or more displays.

5. A system, comprising:

one or more processors communicatively coupled with one or more displays, and a non-transitory computer-readable storage medium storing computer-executable instructions that when executed by the one or more processors cause the one or more processors to;

receive emplacement data corresponding to a medical device;

determine emplacement of a virtual medical device corresponding to the medical device with respect to a point-of-view location based at least in part on the emplacement data corresponding to the medical device;

determine an estimated ablation volume based at least in part on real-time ablation data associated with the medical device;

receive operating parameters corresponding to the medical device, the operating parameters comprising at least a variance parameter that corresponds to a variance in a size of the estimated ablation volume;

determine a first predicted affected region based at least in part on the variance parameter, wherein the first predicted affected region is smaller than the estimated ablation volume;

determine a second predicted affected region based at least in part on the variance parameter, wherein the second predicted affected region is larger than the estimated ablation volume;

determine emplacement of the first predicted affected region and the second predicted affected region with respect to the point-of-view location based at least in part on the emplacement data corresponding to the medical device; and

cause one or more displays to concurrently display;

a perspective view of at least a portion of the virtual medical device based at least in part on the emplacement of the virtual medical device,

a perspective view of the estimated ablation volume,

a perspective view of at least a portion of the first predicted affected region based at least in part on the determined emplacement of the first predicted affected region, and

a perspective view of at least a portion of the second predicted affected region based at least in part on the determined emplacement of the second predicted affected region.

6. The system of claim 5, wherein the point-of-view location comprises at least one of a location of a user, an expected location of the user, or a fixed location relative to the one or more displays.

7. The system of claim 5, wherein the estimated ablation volume is a dynamically updated based at least in part on the real-time ablation data.

8. The system of claim 5, wherein the computer-executable instructions when executed further cause the one or more processors to:

determine a third predicted affected region based at least in part on the variance parameter, wherein the third predicted affected region is greater than the first predicted affected region and less than the second predicted affected region;

determine emplacement of the third predicted affected region with respect to the point-of-view location based at least in part on the emplacement data corresponding to the medical device; and

cause one or more displays to concurrently display a perspective view of at least a portion of the third predicted affected region based at least in part on the determined emplacement of the third predicted affected region.

9. The system of claim 5, wherein the variance parameter corresponds to a margin of error associated with said determining the estimated ablation volume.

10. The system of claim 5, wherein the variance parameter corresponds to a variance in a volume that is affected by a medical procedure corresponding to the medical device.

11. The system of claim 5, wherein the variance parameter includes a first threshold and a second threshold, the second threshold being greater than the first threshold, wherein the first threshold is used to determine the first predicted affected region and the second threshold is used to determine the second predicted affected region.

12. The system of claim 5, wherein the medical device comprises an ablation needle and the variance parameter comprises a power level of the ablation needle.

13. The system of claim 5, wherein the at least a portion of the first predicted affected region comprises at least one of a surface of the first predicted affected region, an outline of the first predicted affected region, alternating horizontal bands of differing opacity, alternating vertical bands of differing opacity, alternating tiles of differing opacity, at least a portion of the first predicted affected region located between an image slice and the point-of-view location, at least a portion of the first predicted affected region that is co-located with at least a portion of the image slice, or at least a portion of the first predicted affected region that is co-located with at least a portion of the virtual medical device.

14. The system of claim 5, wherein the at least a portion of the second predicted affected region comprises at least one of a surface of the second predicted affected region, an outline of the second predicted affected region, alternating horizontal bands of differing opacity, alternating vertical bands of differing opacity, alternating tiles of differing opacity, at least a portion of the second predicted affected region located between an image slice and the point-of-view location, at least a portion of the second predicted affected region that is co-located with at least a portion of the image slice, or at least a portion of the second predicted affected region that is co-located with at least a portion of the virtual medical device.

15. The system of claim 5, wherein portions of the at least a portion of the second predicted affected region that are closer to a surface of the at least a portion of the second predicted affected region are displayed at a different opacity than portions of the at least a portion of the second predicted affected region that are farther away from a surface of the at least a portion of the second predicted affected region.

16. The system of claim 5, wherein the at least a portion of the second predicted affected region corresponds to at least a portion of the second predicted affected region that is unique to the second predicted affected region with respect to the first predicted affected region.

17. A computer-readable, non-transitory storage medium storing computer-executable instructions that when executed by one or more processors cause the one or more processors to:

receive first emplacement data corresponding to a first medical device;

receive second emplacement data corresponding to a second medical device;

determine an emplacement of an image slice with respect to a point-of-view location, based on the second emplacement data;

determine a first ablation region on the image slice based at least in part on real-time ablation data associated with the first medical device, the determined emplacement of the image slice, and the first emplacement data;

identify a variance parameter corresponding to the first medical device, wherein the variance parameter corresponds to a margin of error associated with the determination of the first ablation region;

determine a second ablation region on the image slice based at least in part on the variance parameter, the determined emplacement of the image slice, and the first emplacement data, wherein the second ablation region is different in size from the first ablation region; and

cause one or more displays to display;

a perspective view of the image slice based at least in part on the emplacement of the image slice,

the first ablation region on the image slice, and

the second ablation region on the image slice.

18. The computer-readable, non-transitory storage medium of claim 17, wherein the second ablation volume corresponds to at least one of a smallest-possible ablation region of the first medical device based on the variance parameter or a largest-possible ablation volume of the first medical device based on the variance parameter.

19. The computer-readable, non-transitory storage medium of claim 17, wherein portions of the second ablation region that are closer to a surface of the second ablation region are displayed at a different opacity than portions of the second ablation region that are farther away from a surface of the second ablation volume.

20. The computer-readable, non-transitory storage medium of claim 17, wherein the point-of-view location comprises at least one of a location of a user, an expected location of the user, or a fixed location relative to the one or more displays.