Registration of electro-anatomical map with pre-acquired image using ultrasound
First Claim
1. A system for imaging a target in a patient'"'"'s body, the system comprising:
- a pre-acquired image of the target;
an electrophysiological map of the target;
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 and the electrophysiological map with the ultrasonic image; and
a display for displaying the registered pre-acquired image, electrophysiological map and ultrasonic image.
1 Assignment
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Accused Products
Abstract
A system and method for imaging a target in a patient'"'"'s body includes the steps of providing a pre-acquired image of the target and placing a catheter having a position sensor, an ultrasonic imaging sensor and at least one electrode, in the patient'"'"'s body. Positional information of a portion of the catheter in the patient'"'"'s body is determined using the position sensor and electrical activity data-points of a surface of the target are acquired using the at least one electrode. An ultrasonic image of the target is obtained using the ultrasonic imaging sensor and positional information for the electrical activity data-points of the surface of the target is determined. An electrophysiological map of the target is generated based on the electrical activity data-points and the positional information for the electrical activity data-points. Positional information for any pixel of the ultrasonic image of the target is determined and the pre-acquired image and the electrophysiological map are registered with the ultrasonic image. The registered pre-acquired image, electrophysiological map and ultrasonic image are displayed on a display.
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Citations
51 Claims
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1. A system for imaging a target in a patient'"'"'s body, the system comprising:
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a pre-acquired image of the target;
an electrophysiological map of the target;
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 and the electrophysiological map with the ultrasonic image; and
a display for displaying the registered pre-acquired image, electrophysiological map and ultrasonic image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for imaging a target in a patient'"'"'s body, the system comprising:
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a pre-acquired image of the target;
a catheter comprising a position sensor, an ultrasonic imaging sensor and at least one electrode, the position sensor transmitting electrical signals indicative of positional information of a portion of the catheter in the patient'"'"'s body, 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 and the at least one electrode acquiring electrical activity data-points of a surface of the target;
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 and for the electrical activity data-points of the target, the image processor creating an electrophysiological map of the target based on the electrical activity data-points of the target and the positional information for the electrical activity data-points and registering the pre-acquired image and the electrophysiological map with the ultrasonic image; and
a display for displaying the registered pre-acquired image, electrophysiological map and ultrasonic image. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method for imaging a target in a patient'"'"'s body, the method comprising the steps of:
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providing a pre-acquired image of the target;
providing an electrophysiological map 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 and the electrophysiological map with the ultrasonic image; and
displaying the registered pre-acquired image, electrophysiological map and ultrasonic image. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A method for imaging a target in a patient'"'"'s body, the method comprising the steps of:
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providing a pre-acquired image of the target;
placing a catheter comprising a position sensor, an ultrasonic imaging sensor and at least one electrode, in the patient'"'"'s body and determining positional information of a portion of the catheter in the patient'"'"'s body using the position sensor;
acquiring electrical activity data-points of a surface of the target using the at least one electrode;
generating an ultrasonic image of the target using the ultrasonic imaging sensor;
determining positional information for the electrical activity data-points of the surface of the target and generating an electrophysiological map of the target based on the electrical activity data-points and the positional information for the electrical activity data-points;
determining positional information for any pixel of the ultrasonic image of the target and registering the pre-acquired image and the electrophysiological map with the ultrasonic image; and
displaying the registered pre-acquired image, electrophysiological map and ultrasonic image. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification