Patient breathing modeling
First Claim
Patent Images
1. A method of modeling lung movements due to breathing in a patient comprising:
- acquiring at least one static image of a patient'"'"'s lungs during a fully inhaled phase of the breathing cycle;
acquiring at least one static image of a patient'"'"'s lungs during a fully exhaled phase of the breathing cycle;
generating at least one electromagnetic field;
identifying locations of a plurality of points of interest on said static images, wherein location sensors are attached to said patient proximate said points of interest;
detecting the at least one electromagnetic field with said location sensors;
determining location data from signals received from said location sensors; and
using said location data to model the lung movements by predicting mathematically locations of said plurality of points of interest at phases of the breathing cycle between said fully inhaled and fully exhaled phases of the breathing cycle.
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Abstract
A method of accounting for the movement of the lungs during an endoscopic procedure such that a previously acquired image may be dynamically registered with a display showing the position of a locatable guide. After an initial image set is acquired, an area of interest is identified and the movement thereof due to breathing is mathematically modeled. Patient movement sensors are then used to provide information on the patient'"'"'s breathing patterns. This information is entered into the mathematical model in order to update the registration between the image set and a display showing the position of the locatable guide.
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9 Claims
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1. A method of modeling lung movements due to breathing in a patient comprising:
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acquiring at least one static image of a patient'"'"'s lungs during a fully inhaled phase of the breathing cycle; acquiring at least one static image of a patient'"'"'s lungs during a fully exhaled phase of the breathing cycle; generating at least one electromagnetic field; identifying locations of a plurality of points of interest on said static images, wherein location sensors are attached to said patient proximate said points of interest; detecting the at least one electromagnetic field with said location sensors; determining location data from signals received from said location sensors; and using said location data to model the lung movements by predicting mathematically locations of said plurality of points of interest at phases of the breathing cycle between said fully inhaled and fully exhaled phases of the breathing cycle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification