Systems and methods for evaluating accuracy in a patient model
AssigneeSmith & Nephew, Inc.
InventorYangqiu HU
Life of this patent
Estimating the term…
Abstract
Systems, devices, and methods are described for providing patient anatomy models with indications of model accuracy included with the model. Accuracy is determined, for example, by analyzing gradients at tissue boundaries or by analyzing tissue surface curvature in a three-dimensional anatomy model. The determined accuracy is graphically provided to an operator along with the patient model. The overlaid accuracy indications facilitate the operator's understanding of the model, for example by showing areas of the model that may deviate from the modeled patient's actual anatomy.
Claims18
-8. (canceled)
A system for indicating accuracy of image segmentation in a patient model, the system comprising:
- a processor;
- and
- a non-transitory, processor-readable storage medium in communication with the processor, wherein the non-transitory, processor-readable storage medium comprises one or more programming instructions that, when executed, cause the processor to:
- create a three-dimensional bone surface model of a portion of a patient's bone from imaging data;
- evaluate a first signal intensity gradient between a first point on a surface of the three-dimensional model and a second point spaced from the surface along a line extending from the surface at the first point;
- and
- mark the first point on the three-dimensional with a first indicium model if the first signal intensity gradient exceeds a first threshold.
A system for assessing the accuracy of a three-dimensional bone surface model, the system comprising:
- a processor;
- and
- a non-transitory, processor-readable storage medium in communication with the processor, wherein the non-transitory, processor-readable storage medium comprises one or more programming instructions that, when executed, cause the processor to:
- create the three-dimensional bone surface model of a portion of a patient's bone from imaging data;
- determine a curvature of the three-dimensional bone surface model at a plurality of points along a surface of the three-dimensional bone surface model;
- identify the curvature at each of the plurality of points as convex or concave;
- and
- mark one or more transition portions of the surface, wherein each transition portion of the surface is defined between a first point of the plurality of points and a second point of the plurality of points, wherein the first point and the second point are adjacent to each other along the surface, and wherein the first point has a concave curvature and the second point has a convex curvature.
Dependencies are inferred from the claim text.