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REGISTRATION OF AN ANATOMICAL IMAGE WITH A POSITION-TRACKING COORDINATE SYSTEM BASED ON PROXIMITY TO BONE TISSUE
专利权人:
Biosense Webster (Israel) Ltd.
发明人:
Vadim Gliner
申请号:
US15493703
公开号:
US20180308232A1
申请日:
2017.04.21
申请国别(地区):
US
年份:
2018
代理人:
摘要:
A method includes, identifying, in a three-dimensional (3D) anatomical image of a patient organ, multiple anatomical points corresponding to respective predefined locations on a skin of the patient organ in a first coordinate system. Multiple positions in a second coordinate system, measured by a position sensor of a position-tracking system at the respective predefined locations on the skin of the patient organ, are received. At each predefined location, a distance is calculated between a respective anatomical point and closest bone tissue of the patient organ. Weights are assigned to the predefined locations based on respective distances between the anatomical points and the closest bone tissue. The first and second coordinate systems are registered, by correlating between the positions and the respective anatomical points using the assigned weights.
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