Endoscopic ultrasonography simulation
First Claim
1. A computer-implemented method for simulating an ultrasound image of at least one anatomical feature of a subject, the method comprising:
- modeling, by a computer, a surface geometry of the at least one anatomical feature as a polygonal representation within a polygonal surface model;
based on the surface geometry, generating, by the computer, an image of at least one planar slice of said surface geometry based on a location of a simulated source of ultrasound waves and the polygonal surface geometry of a portion of the subject which would receive ultrasound waves if an ultrasound diagnostic procedure was actually being performed;
based on the image of said at least one planar slice, rendering, by the computer, the simulated ultrasound image according to said image of said at least one planar slice as part of a simulation of an endoscopic medical procedure, wherein rendering the simulated ultrasound image includes simulating echoes reflected from tissue of the anatomical feature, and adding to the image a filling texture; and
displaying, by the computer, the rendered image to a user.
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Abstract
A method and a system to simulate ultrasound images and hence for simulating the evaluation of a subject with such images as a diagnostic tool. For the purpose of simulating ultrasound images, these images may be considered to be planar slices of a given geometry. These slices are generated from the surface geometry of the portion of the subject which would receive the ultrasound waves if the ultrasound diagnostic procedure was actually be performed. Simulating such ultrasound images may therefore be performed by determining such images from surface models, and then rendering those ultrasound images at the desired position. The rendering of such simulated ultrasound images also optionally and preferably includes the simulation of the “grainy” quality of such images.
394 Citations
11 Claims
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1. A computer-implemented method for simulating an ultrasound image of at least one anatomical feature of a subject, the method comprising:
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modeling, by a computer, a surface geometry of the at least one anatomical feature as a polygonal representation within a polygonal surface model; based on the surface geometry, generating, by the computer, an image of at least one planar slice of said surface geometry based on a location of a simulated source of ultrasound waves and the polygonal surface geometry of a portion of the subject which would receive ultrasound waves if an ultrasound diagnostic procedure was actually being performed; based on the image of said at least one planar slice, rendering, by the computer, the simulated ultrasound image according to said image of said at least one planar slice as part of a simulation of an endoscopic medical procedure, wherein rendering the simulated ultrasound image includes simulating echoes reflected from tissue of the anatomical feature, and adding to the image a filling texture; and displaying, by the computer, the rendered image to a user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification