Cardiac CT system and method for planning left atrial appendage isolation

• US 20040225212A1
• Filed: 05/07/2003
• Published: 11/11/2004
• Est. Priority Date: 05/07/2003
• Status: Active Grant

• Current Assignee: APN Health, LLC, GE Medical Systems Global Technology Company LLC (GE Healthcare Technologies, Inc.)
• Original Assignee: GE Medical Systems Global Technology Company LLC (GE Healthcare Technologies, Inc.)
• Inventors: Sra, Jasbir S., Vass, Melissa L., Okerlund, Darin R., Reddy, Shankara B.
• Granted Patent: US 7,747,047 B2
• Time in Patent Office: Days
• US Class Current: 600/407
• CPC Class Codes: A61B 5/7289 Retrospective gating, i.e. associating measured signals or images with a physiological event after the actual measurement or image acquisition, e.g. by simultaneously recording an additional physiological signal during the measurement or image acquisition
• CPC Class Codes: A61B 6/032 Transmission computed tomography [CT]
• CPC Class Codes: A61B 6/503 for diagnosis of the heart
• CPC Class Codes: A61B 6/541 involving acquisition triggered by a physiological signal
• CPC Class Codes: A61B 8/0883 for diagnosis of the heart
• CPC Class Codes: G06T 19/00 Manipulating 3D models or images for computer graphics
• CPC Class Codes: G06T 2207/30048 Heart; Cardiac
• CPC Class Codes: G06T 2210/41 Medical
• CPC Class Codes: G06T 7/33 using feature-based methods
• CPC Class Codes: G16H 20/30 relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
• CPC Class Codes: G16H 30/40 for processing medical images, e.g. editing
• CPC Class Codes: G16H 50/50 for simulation or modelling of medical disorders

Abstract

A method for planning left atrial appendage (LAA) occlusion for a patient includes obtaining acquisition data from a medical imaging system, and generating a 3D model of the left atrium of the patient. One or more left atrial anatomical landmarks are identified on the 3D model, and saved views of the 3D model are registered on an interventional system. One or more of the registered saved views are visualized with the interventional system.

Claims

1. A method for planning left atrial appendage (LAA) occlusion for a patient, the method comprising:

obtaining acquisition data from a medical imaging system;

generating a 3D model of the left atrium of the patient;

identifying one or more left atrial anatomical landmarks on said 3D model;

registering saved views of said 3D model on an interventional system; and

visualizing one or more of said registered saved views with said interventional system.

2. The method of claim 1, further comprising identifying, from said 3D model, orientation and size of the LAA.

3. The method of claim 1, wherein said obtaining acquisition data is implemented with protocols directed for imaging the left atrium.

4. The method of claim 3, further comprising utilizing post processing software to process said acquisition data so as to generate immersible views of the ostium of the LM.

5. The method of claim 4, wherein said 3D model and said immersible views are visualized through a display screen associated with said interventional system.

6. The method of claim 1 further comprising measuring the LAA ostial size and contour.

7. The method of claim 1, wherein said obtaining acquisition data is EKG gated.

8. A method for planning left atrial appendage (LM) occlusion for a patient, the method comprising:

obtaining acquisition data from a medical imaging system using a protocol directed toward the left atrium;

segmenting said acquisition data using a 3D protocol so as to visualize the left atrium, including the LAA;

generating a 3D model of the left atrium of the patient;

identifying one or more left atrial anatomical landmarks on said 3D model;

registering saved views of said 3D model on an interventional system;

visualizing one or more of said registered saved views with said interventional system; and

identifying, from said 3D model, the orientation and size of the LAA, as well as any anomalies associated therewith.

9. The method of claim 8, further comprising utilizing post processing software to process said acquisition data so as to generate immersible views of the ostium of the LAA.

10. The method of claim 9, wherein said 3D model and said immersible views are visualized through a display screen associated with said interventional system.

11. The method of claim 8, wherein said obtaining acquisition data is EKG gated.

12. The method of claim 8, wherein said medical imaging system is one of a computed tomography system, a magnetic resonance imaging system and an ultrasound system.

13. A method for planning left atrial appendage (LM) occlusion for a patient, the method comprising:

obtaining acquisition data from a cardiac computed tomography (CT) imaging system using a protocol directed toward the left atrium;

segmenting said acquisition data using a 3D protocol so as to visualize the left atrium, including the LAA;

generating a 3D model of the left atrium of the patient;

identifying one or more left atrial anatomical landmarks on said 3D model;

registering saved views of said 3D model on a fluoroscopy system; and

visualizing one or more of said registered saved views with said fluoroscopy system; and

identifying, from said 3D model, the orientation and size of the LAA, as well as any anomalies associated therewith.

14. The method of claim 13, further comprising utilizing post processing software to process said acquisition data so as to generate immersible views of the ostium of the LAA.

15. The method of claim 14, wherein said 3D model and said immersible views are visualized through a display screen associated with said fluoroscopy system.

16. The method of claim 13, wherein said obtaining acquisition data is EKG gated.

17. A system for planning left atrial appendage (LM) occlusion for a patient, comprising:

a medical imaging system for generating acquisition data;

an image generation subsystem for receiving said acquisition data and generating one or more images of the left atrium of the patient;

an operator console for identifying one or more left atrial anatomical landmarks on said one or more images;

a workstation including post processing software for registering saved views of said 3D model on an interventional system; and

wherein said interventional system is configured for visualizing one or more of said registered saved views therewith and identifying the orientation and size of the LAA.

18. The system of claim 17, wherein said image generation subsystem is configured with protocols directed for imaging the left atrium.

19. The system of claim 18, wherein said post processing software is further configured to process said acquisition data so as to generate immersible views of the ostium of the LAA.

20. The system of claim 19, further comprising a display screen associated with said interventional system, said display screen for visualizing said 3D model and said immersible views.

21. The system of claim 17, wherein said image generating subsystem is EKG gated.

22. A system for planning left atrial appendage isolation for a patient, comprising:

a cardiac computed tomography (CT) imaging system for generating acquisition data, said CT imaging system using a protocol directed toward the left atrium;

an image generation subsystem for receiving said acquisition data and generating one or more images of the left atrium of the patient;

said image generation system further configured for segmenting said acquisition data using a 3D protocol so as to visualize the left atrium, including the LAA;

an operator console for identifying one or more left ventricle anatomical landmarks on said one or more images;

a workstation including post processing software for registering saved views of said 3D model on a fluoroscopy system; and

wherein said fluoroscopy system is configured for visualizing one or more of said registered saved views therewith and identifying the orientation and size of the LAA.

23. The system of claim 22, wherein said post processing software is further configured to process said acquisition data so as to generate immersible views of the ostium of the LAA.

24. The system of claim 23, further comprising a display screen associated with said fluoroscopy system, said display screen for visualizing said 3D model and said immersible views.

25. The system of claim 22, wherein said image generating subsystem is EKG gated.