EP1720038A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Registration of ultrasound data with pre-acquired image
Assignee: Biosense Webster Inc
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Filing: 2006-04-25
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Granted: —
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Expires: 2026-04-25
Abstract
Abstract A system and method for imaging a target in a patient's body uses a pre-acquired image (100) of the target and a catheter (28) having a position sensor (32) and an ultrasonic imaging sensor (40). The catheter is placed in the patient's body and positional information of a portion of the catheter in the patient's body is determined using the position sensor. The catheter is used to generate an ultrasonic image of the target using the ultrasonic imaging sensor. An image processor is used for determining positional information for any pixel of the ultrasonic image of the target and registering the pre-acquired image with the ultrasonic image; and a display is used for displaying the registered pre-acquired image (100) and ultrasonic image (102).
Inventors
- 👤 Andres Claudio Altmann
- 👤 Assaf Govari
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 21:55
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/06; A61B5/061; A61B5/062; A61B5/065; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B8/00; A61B8/08; A61B8/0883; A61B8/12; A61B8/44; A61B8/4483; A61B8/4488; A61B8/46; A61B8/461; A61B8/466; A61B8/48; A61B8/483; G; G06; G06T; G06T5/00; G06T5/50; G06T7/00; G06T7/30; G06T7/38; G06V; G06V10/00; G06V10/20; G06V10/24; A61B17/00; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B34/00; A61B34/20; A61B2034/2046; A61B2034/2051; A61B90/00; A61B90/36; A61B2090/364; A61B90/37; A61B2090/378; A61B2090/3782; A61B2090/3784; A61B6/00; A61B6/50; A61B6/503; A61B6/54; A61B6/541; A61B8/06; G01; G01S; G01S15/00; G01S15/88; G01S15/89; G01S15/8906; G01S15/8993; G06T2207/00; G06T2207/10; G06T2207/10068; G06T2207/10072; G06T2207/10116; G06T2207/10132; G06T2207/30; G06T2207/30004; G06T2207/30048; G06T2207/30101; G06V10/248; G06V2201/00; G06V2201/03; G06V2201/031
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
185 words
A system for imaging a target in a patient's body, the system comprising: a pre-acquired image; a catheter comprising a position sensor and an ultrasonic imaging sensor, the position sensor transmitting electrical signals indicative of positional information of a portion of the catheter in the patient's body, and the ultrasonic imaging sensor transmitting ultrasonic energy at the target in the patient's body, receiving ultrasonic echoes reflected from the target in the patient's body and transmitting signals relating to the ultrasonic echoes reflected from the target in the patient's body; a positioning processor operatively connected to the catheter for determining positional information of the portion of the catheter based on the electrical signals transmitted by the position sensor; an image processor operatively connected to the catheter and the positioning processor, the image processor generating an ultrasonic image of the target based on the signals transmitted by the ultrasonic sensor and determining positional information for any pixel of the ultrasonic image of the target, the image processor registering the pre-acquired image with the ultrasonic image; and a display for displaying the registered pre-acquired image and ultrasonic image.
Claim 2
Dependent Claim
17 words
The system according to Claim 1, wherein the ultrasonic image is at least one two-dimensional ultrasonic image.
Claim 3
Dependent Claim
32 words
The system according to Claim 2, wherein the image processor reconstructs a three-dimensional model from the at least one two-dimensional ultrasonic image and the pre-acquired image is registered with the three-dimensional model.
Claim 4
Independent Claim
27 words
The system according to any one of Claims 1 to 3, wherein the position sensor is used for determining location and orientation coordinates as the positional information.
Claim 5
Dependent Claim
16 words
The system according to Claim 4, wherein the position sensor is responsive to an electromagnetic field.
Claim 6
Dependent Claim
17 words
The system according to Claim 5, wherein the electromagnetic field defines a working volume for the catheter.
Claim 7
Independent Claim
22 words
The system according to any one of Claims 1 to 6, wherein the ultrasonic imaging sensor is an array of ultrasonic transducers.
Claim 8
Dependent Claim
16 words
The system according to Claim 7, wherein the array of ultrasonic transducers is a phased array.
Claim 9
Independent Claim
19 words
The system according to any one of Claims 1 to 8, wherein the pre-acquired image is a MRI image.
Claim 10
Independent Claim
19 words
The system according to any one of Claims 1 to 8, wherein the pre-acquired image is a CT image.
Claim 11
Independent Claim
19 words
The system according to any one of Claims 1 to 8, wherein the pre-acquired image is an X-ray image.
Claim 12
Independent Claim
100 words
A method for imaging a target in a patient's body, the method comprising the steps of: providing a pre-acquired image of the target; placing a catheter comprising a position sensor and an ultrasonic imaging sensor in the patient's body and determining positional information of a portion of the catheter in the patient's body using the position sensor; generating an ultrasonic image of the target using the ultrasonic imaging sensor; determining positional information for any pixel of the ultrasonic image of the target and registering the pre-acquired image with the ultrasonic image; and displaying the registered pre-acquired image and ultrasonic image.
Claim 13
Dependent Claim
17 words
The method according to Claim 12, further comprising registering the pre-acquired image and ultrasonic image using points.
Claim 14
Dependent Claim
17 words
The method according to Claim 12, further comprising registering the pre-acquired image and ultrasonic image using contours.
Claim 15
Dependent Claim
17 words
The method according to Claim 12, further comprising registering the pre-acquired image and ultrasonic image using surfaces.
Claim 16
Dependent Claim
17 words
The method according to Claim 12, further comprising registering the pre-acquired image and ultrasonic image using volumes.
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