Imaging system and method of delivery of an instrument to an imaged subject

• US 8,527,032 B2
• Filed: 03/27/2008
• Issued: 09/03/2013
• Est. Priority Date: 05/16/2007
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Li, Dun Alex
• Primary Examiner(s): Roy, Baisakhi
• Application Number:
  US12/056,604
• Publication Number:
  US 20080287790A1
• Time in Patent Office: 1,986 Days
• Field of Search: 600/424, 600/429, 600/437, 600/439, 600/471, 382/128, 382/130, 382/131
• US Class Current: 600/424
• CPC Class Codes: A61B 2034/105 Modelling of the patient, e.g. for ligaments or bones
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2034/2063 Acoustic tracking systems, e.g. using ultrasound
• CPC Class Codes: A61B 2090/367 creating a 3D dataset from 2D images using position information
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 2090/3925 ultrasonic
• CPC Class Codes: A61B 2090/3929 Active markers
• 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 5/062 using magnetic field
• CPC Class Codes: A61B 5/7285 for synchronising or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal A61B6/5205, A61B6/541, A61B8/5207, A61B8/543 take precedence
• CPC Class Codes: A61B 6/541 involving acquisition triggered by a physiological signal
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: A61B 8/4245 involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient
• CPC Class Codes: A61B 8/4254 using sensors mounted on the probe
• CPC Class Codes: A61B 8/4263 using sensors not mounted on the probe, e.g. mounted on an external reference frame
• CPC Class Codes: A61B 8/445 Details of catheter construction
• CPC Class Codes: A61B 8/4461 Features of the scanning mechanism, e.g. for moving the transducer within the housing of the probe
• CPC Class Codes: A61B 8/483 involving the acquisition of a 3D volume of data
• CPC Class Codes: A61B 8/543 involving acquisition triggered by a physiological signal

Abstract

An embodiment of an imaging system of an imaged subject is provided. The imaging system comprises a controller, and an imaging system and a display in communication with the controller. The imaging system can include an imaging probe having a marker representative of a unique identifier. The display can be illustrative of the imaged data acquired with the imaging probe in combination with a graphic representation of an imaging plane vector representative of a general direction of a field of view (FOV) of image acquisition of the imaging probe traveling through the imaged subject.

Claims

1. A tracking system comprising:

an imaging probe configured to travel through an imaged anatomy, the imaging probe acquiring real-time three-dimensional (3D) image data of the imaged anatomy, the imaging probe configured to provide the 3D image data to an imaging system;

an input configured to receive, from the imaging system, a 3D model of a portion of the imaged anatomy, the 3D model being generated based on the 3D image data;

a tracking element integrated with the imaging probe to obtain real-time tracking information representative of a position of the imaging probe, the tracking information being used to generate an imaging plane vector representative of a direction of a field of view (FOV) of image acquisition of the imaging probe; and

a controller configured to receive a graphic representation of a location of a target site relative to the imaged anatomy, generate a graphical illustration of a path of the imaging probe that leads to the target site, and map the graphic illustration of the path and the imaging plane vector onto the 3D model in real-time.

2. The system of claim 1, wherein the imaging probe includes a transducer array rotatable about a longitudinal axis of the imaging probe, the imaging probe operable to acquire ultrasound image data of the imaged subject while traveling through the imaged subject.

3. The system of claim 2, wherein the imaging probe includes a marker having a unique identifier, wherein the controller is operable to identify a location and an identification of the marker in the acquired ultrasound image data, and to generate a graphic representation of the identification and the location of the imaging probe relative to the acquired ultrasound image data for illustration in the display.

4. The system of claim 1, wherein the controller is further configured to display a graphic illustration of a distance between the imaging probe relative to an anatomical surface of the imaged anatomy of the imaged subject.

5. The system of claim 1, wherein the controller is further configured to display an illustration of a cardiac cycle or a respiratory cycle synchronized relative to a point of time of acquisition of updates continuously or periodically acquired and combined with the image data of the imaged anatomy.

6. The system of claim 1, wherein the imaging probe includes a marker having a unique identifier, wherein the marker is integrated in a construction of the imaging probe, and wherein the marker includes a metallic object representative of a unique identifier detectable in ultrasound image data acquired by the imaging probe.

7. The system of claim 1, wherein the imaging probe includes a marker, a voxel position of the marker calculated within the image data acquired by the imaging probe.

8. The system of claim 1, wherein the imaging probe includes a transducer array rotatable about a longitudinal axis of the imaging probe, the imaging plane vector extending in a direction traveled by the transducer array relative to the longitudinal axis.

9. The system of claim 1, wherein the imaging probe includes a transducer array rotatable about a longitudinal axis of the imaging probe, the transducer array acquiring sector images extending parallel to the longitudinal axis.

10. The system of claim 1, wherein the imaging probe includes a first marker having a first unique identifier and a second marker having a second unique identifier, wherein the first marker includes a plurality of metallic objects that arranged in a first pattern and the second marker includes a plurality of metallic objects that are arranged in a different second pattern.

11. The system of claim 1, further comprising an ablation catheter, the imaging catheter being configured to automatically follow a path of the ablation catheter.

12. The system of claim 1, further comprising a display co-displaying the tracking information on the 3D model of the subject.

13. A method of tracking an imaging probe, the method comprising:

acquiring real-time three-dimensional (3D) image data of an imaged anatomy with movement of an imaging probe traveling through the imaged anatomy;

generating a 3D model of a portion of the imaged anatomy based on the 3D image data;

obtaining real-time tracking information representative of a position of the imaging probe;

generating an imaging plane vector representative of a general direction of a field of view (FOV) of image acquisition of the imaging probe traveling through the imaged anatomy;

receiving, from a user, a graphic representation of a location of a target site relative to the imaged anatomy,

generating a graphical illustration of a path of the imaging probe that leads to the target site; and

mapping the graphic illustration of the path and the imaging plane vector onto the 3D model in real-time.

14. The method of claim 13, wherein the step of acquiring image data includes rotating a transducer array about a longitudinal axis of the imaging probe with movement of the imaging probe through the imaged subject, the imaging probe operable to acquire ultrasound image data of the imaged subject.

15. The method of claim 14, wherein the imaging probe includes a marker representative of a unique identifier, and the method includes the steps of identifying a location and an identification of the marker in the acquired ultrasound image data, and generating a graphic representation of the identification and the location of the imaging probe relative to the acquired ultrasound image data for illustration in the display.

16. The method of claim 13, further comprising creating a graphic illustration of a distance between the imaging probe relative to an anatomical surface of the imaged anatomy of the imaged subject.

17. The method of claim 13, further comprising creating an illustration of a cardiac cycle or a respiratory cycle synchronized relative to a point of time of acquisition of updates continuously or periodically acquired and combined with the image data of the imaged anatomy.

18. The method of claim 13, wherein the imaging probe includes a marker representative of a unique identifier, wherein the marker is integrated in a construction of the imaging probe, and wherein the marker includes a metallic object representative of a unique identifier detectable in ultrasound image data acquired by the imaging probe.

19. The method of claim 13, wherein the imaging probe includes a marker, the method further comprising calculating a voxel position of the marker within the image data acquired by the imaging probe.

20. The method of claim 13, wherein the imaging plane vector extends in a direction traveled by a transducer array of the imaging probe relative to a longitudinal axis of the imaging probe.

21. The method of claim 13, wherein the imaging probe includes a transducer array rotatable about a longitudinal axis of the imaging probe, the method further comprising acquiring sector images with the transducer array, the sector images extending parallel to the longitudinal axis.

22. The method of claim 13 further comprising tracking a location of the imaging probe with a tracking system, the location of the imaging probe tracked relative to the image data acquired with the imaging probe.