METHOD AND SYSTEM FOR ADAPTIVE IMAGE GUIDED INTERVENTION

• US 20150190205A1
• Filed: 07/02/2013
• Published: 07/09/2015
• Est. Priority Date: 07/09/2012
• Status: Active Grant

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Grass, Michael, Chan, Raymond, Manzke, Robert
• Granted Patent: US 10,952,810 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2034/2061 using shape-sensors, e.g. fiber shape sensors with Bragg gratings
• CPC Class Codes: A61B 2034/2065 Tracking using image or pattern recognition
• CPC Class Codes: A61B 2560/0266 for monitoring or limiting apparatus function
• CPC Class Codes: A61B 2562/0266 Optical strain gauges
• 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 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/0082 adapted for particular medical purposes
• CPC Class Codes: A61B 5/065 Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe
• CPC Class Codes: A61B 5/107 Measuring physical dimensions, e.g. size of the entire body or parts thereof
• CPC Class Codes: A61B 5/113 occurring during breathing
• CPC Class Codes: A61B 5/1135 by monitoring thoracic expansion
• CPC Class Codes: A61B 5/6823 Trunk, e.g., chest, back, abdomen, hip
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: A61B 5/6848 Needles
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: A61B 6/12 Arrangements for detecting or locating foreign bodies
• CPC Class Codes: A61B 90/37 Surgical systems with images on a monitor during operation
• CPC Class Codes: G01L 1/246 using integrated gratings, e.g. Bragg gratings

Abstract

A method and system for generating imaging data during a medical intervention are provided. An external optical sensor is attached on the patient'"'"'s body, and includes at least one external orientation fiber core configured to measure an orientation of the external optical sensor relative to a point of reference. The external optical sensor is interrogated to generate external sensor orientation information during the medical intervention. That information is used to estimate an orientation of the external optical sensor, which is then displayed during the medical intervention.

Claims

1. A method for generating imaging data during a medical intervention performed on a patient, the method comprising:

attaching an external optical sensor on the patient'"'"'s body, the external optical sensor comprising at least one external orientation fiber core configured to deform due to insertion of a medical intervention instrument during the medical intervention and configured to measure an orientation of the external optical sensor relative to a point of reference;

optically interrogating the external optical sensor to generate external sensor orientation information regarding the external optical sensor during the medical intervention, and using the external sensor orientation information to estimate the orientation of the external optical sensor during the medical intervention; and

displaying deformation of the patient'"'"'s body due to insertion of the medical intervention instrument using, at least in part, the external sensor orientation estimate.

2. The method of claim 1, wherein the optical interrogation step is performed using an optical Fourier frequency domain reflectometer.

3. The method of claim 1, wherein the external optical sensor comprises a patch including a substrate supporting the at least one external orientation fiber core.

4. The method of claim 3, wherein the substrate has an underside, and an adhesive bonding material is applied to the underside to create a releasable adhesive bond with the patient'"'"'s skin.

5. The method of claim 3, wherein the substrate comprises a disposable matrix which adheres to the patient'"'"'s skin, and the external orientation fiber core is contained within a re-usable component which attaches to the matrix.

6. The method of claim 3, wherein the substrate comprises at least one zone which does not contain any fiber cores, such that the medical intervention instrument is inserted through the at least one zone.

7. The method of claim 1, farther comprising:

inserting an internal optical sensor associated with the medical intervention instrument into the patient'"'"'s body, the internal optical sensor comprising at least one internal orientation fiber core configured to measure an orientation of the internal optical sensor relative to a point of reference;

optically interrogating the internal optical sensor to generate internal sensor orientation information regarding the internal optical sensor during the medical intervention, and using the internal sensor orientation information to estimate an orientation of the internal optical sensor during the medical intervention; and

displaying an orientation of the medical intervention instrument using, at least in part, the internal sensor orientation estimate.

8. The method of claim 1, wherein the at least one external orientation fiber core comprises at least one of an array of Bragg gratings and a Rayleigh scattering structure.

9. The method of claim 1, further comprising:

attaching the external optical sensor on the patient'"'"'s body before performing a pre-operative imaging scan;

optically interrogating the external optical sensor during the pre-operative imaging scan to measure a first breathing state of the patient;

optically interrogating the external optical sensor during the medical intervention to measure a second breathing state of the patient, and

comparing the first breathing state with the second breathing state.

25. The method of claim 1, further comprising generating a model representing the deformation of the patient'"'"'s body based on the orientation of the external optical sensor.

26. The method of claim 1, further comprising notifying a user that the deformation of the patient'"'"'s body has exceeded a deformation threshold.

10. An imaging system for use in generating imaging data during a medical intervention procedure performed on a patient, the imaging system comprising:

an external optical sensor for being attached to the patient'"'"'s body during the medical intervention, and comprising at least one external orientation fiber core configured to deform due to insertion of a medical intervention instrument during the medical intervention and configured to measure an orientation of the external optical sensor relative to a point of reference;

an optical interrogation console for optically interrogating the external optical sensor to generate external sensor orientation information regarding the external optical sensor during the medical intervention;

an orientation reconstructor to estimate the orientation of the external optical sensor based on the external sensor orientation information during the medical intervention; and

a display for displaying deformation of the patient'"'"'s body due to insertion of the medical intervention instrument using, at least in part, the external sensor orientation estimate.

11. The system of claim 10, wherein the system further includes an optical Fourier frequency domain reflectometer to optically interrogate the external optical sensor.

12. The system of claim 10, wherein the external optical sensor comprises a patch including a substrate supporting the at least one external orientation fiber core.

13. The system of claim 12, wherein the substrate has an underside, and the external optical sensor further comprises an adhesive bonding material applied to the underside to create a releasable adhesive bond with the patient'"'"'s skin.

14. The system of claim 12, wherein the substrate comprises a disposable matrix which adheres to the patient'"'"'s skin, and the external orientation fiber core is contained within a re-usable component which attaches to the matrix.

15. The system of claim 12, wherein the substrate comprises at least one zone which does not contain any fiber cores, such that the medical intervention instrument is inserted through the at least one zone.

16. The system of claim 10, further comprising:

an internal optical sensor associated with the medical intervention instrument for being inserted into the patient'"'"'s body during the medical intervention, and comprising at least one internal orientation fiber core configured to measure an orientation of the internal optical sensor relative to a point of reference;

wherein the optical interrogation console optically interrogates the internal optical sensor to generate internal sensor orientation information regarding the internal optical sensor during the medical intervention;

wherein the orientation reconstructor estimates an orientation of the internal optical sensor during the medical intervention; and

a display to display an orientation of the medical intervention instrument using, at least in part, the internal sensor orientation information.

17. The system of claim 10, wherein the at least one external orientation fiber core comprises at least one of an array of Bragg gratings and a Rayleigh scattering structure.

18. The system of claim 10, wherein the orientation reconstructor uses the orientation information to generate local strain data for a plurality of positions along the at least one orientation fiber core, and to generate local curvature and torsion angle data as a function of each local strain along the orientation fiber core, and to reconstruct the three-dimensional shape of the orientation fiber core as a function of each local curvature and torsion angle.

27. The system of claim 10, wherein the system is configured to generate a model representing the deformation of the patient'"'"'s body based on the orientation of the external optical sensor.

28. The system of claim 10, wherein the system is configured to notify a user that the deformation of the patient'"'"'s body has exceeded a deformation threshold.

19. An apparatus or generating imaging data during a medical intervention performed on a patient, the apparatus comprising:

an external optical sensor disposed on the patient'"'"'s body, the external optical sensor comprising at least one external orientation fiber core configured to deform due to insertion of a medical intervention instrument during the medical intervention and configured to measure an orientation of the external optical sensor relative to a point of reference;

a display; and

a computer readable medium comprising logic to

optically interrogate the external optical sensor to generate external sensor orientation information regarding the external optical sensor during the medical intervention, and use the external sensor orientation information to estimate the orientation of the external optical sensor during the medical intervention; and

display deformation of the patient'"'"'s body on the display due to insertion of the medical intervention instrument using, at least in part, the external sensor orientation estimate.

20. The apparatus of claim 19, wherein the external optical sensor comprises a patch including a substrate supporting the at least one external orientation fiber core.

21. The apparatus of claim 20, wherein the substrate has an underside, and an adhesive bonding material is applied to the underside to create a releasable adhesive bond with the patient'"'"'s skin.

22. The apparatus of claim 20, wherein the substrate comprises a disposable matrix which adheres to the patient'"'"'s skin, and the external orientation fiber core is contained within a re-usable component which attaches to the matrix.

23. The apparatus of claim 20, wherein the substrate comprises at least one zone which does not contain any fiber cores, such that the medical intervention instrument is inserted through the at least one zone.

24. The apparatus of claim 19, further comprising:

an internal optical sensor associated with the medical intervention instrument for inserting into the patient'"'"'s body, the internal optical sensor comprising at least one internal orientation fiber core configured to measure an orientation of the internal optical sensor relative to a point of reference; and

the computer readable medium further comprises logic to;

optically interrogate the internal optical sensor to generate internal sensor orientation information regarding the internal optical sensor during the medical intervention, and use the internal sensor orientation information to estimate an orientation of the internal optical sensor during the medical intervention; and

displaying an orientation of the medical intervention instrument using, at least in part, the internal sensor orientation estimate.

29. The apparatus of claim 19, wherein the computer readable medium comprises logic to generate a model representing the deformation of the patient'"'"'s body based on the orientation of the external optical sensor.

30. The apparatus of claim 19, wherein the computer readable medium comprises logic to notify a user that the deformation of the patient'"'"'s body has exceeded a deformation threshold.