JP-2022531795-A5 -

Dates

Publication Date

20230515

Application Date

20200508

Description

The following claims are not intended to be limited to the multiple embodiments shown herein, but should be consistent with the full scope of the claims. In the claims, references to singular elements mean "one or more" and not "one" unless explicitly stated to mean "one." Unless otherwise specified, the term "some" refers to one or more. No claim element should be construed under Section 112(f) of the U.S. Patent Act unless it is expressly described using the phrase "means for," or, in the case of a method claim, using the phrase "step for." All structural and functional equivalents to elements relating to various aspects described throughout this disclosure, either known to those skilled in the art or subsequently known to those skilled in the art, are expressly incorporated herein by reference and are intended to be included in the claims. Furthermore, nothing disclosed herein, whether or not such disclosure is expressly contained in the claims, is intended for public use. Appearance 1. The process involves a computer acquiring medical image data related to the patient's anatomical structure; The process involves a computer creating a three-dimensional anatomical structure model based on the aforementioned medical image data; The process involves a computer fitting a statistical shape model to the three-dimensional anatomical structure model; The computer determines one or more quantitative measurement results based on the adapted statistical shape model; A computer classifies the defects related to the anatomical structures of the patient based on one or more quantitative measurement results, Methods that include... Appearance 2. The process by which a computer adapts the statistical shape model to the three-dimensional anatomical structure model is: The computer subdivides the statistical shape model into multiple topological regions; The process involves a computer determining a subset of topological regions from the plurality of topological regions to be used to fit the statistical shape model to the three-dimensional anatomical structure model, The method according to embodiment 1, further comprising: Appearance 3. The step of a computer determining the subset of topological regions from the plurality of topological regions to be used to fit the statistical shape model to the three-dimensional anatomical structure model is: The method according to embodiment 2, further comprising the step of the computer excluding each of the plurality of topological regions if, when each topological region is included in the subset of topological regions, the matching error exceeds a threshold. Appearance 4. The step of a computer determining the subset of topological regions from the plurality of topological regions to be used to fit the statistical shape model to the three-dimensional anatomical structure model is: The computer selects a first topological region from the plurality of topological regions; The process involves a computer fitting the statistical shape model to the three-dimensional anatomical structure model based solely on the first topological region; A computer calculates a first fitting error based on a first fitting of the statistical shape model based on the first topological region, The method according to embodiment 2, further comprising: Appearance 5. The method according to embodiment 4, wherein the first fitting error is calculated as the root mean square error (RMSE) between a plurality of points on the statistical shape model and a plurality of corresponding points on the three-dimensional anatomical structure model. Appearance 6. The step of a computer determining the subset of topological regions from the plurality of topological regions to be used to fit the statistical shape model to the three-dimensional anatomical structure model is: The computer determines that the first matching error is below a threshold; The computer selects a second topological region from the plurality of topological regions; The process involves the computer fitting the statistical shape model to the three-dimensional anatomical structure model based on the second topological region; A step in which the computer calculates a second fitting error based on a second fitting of the statistical shape model based on the second topological region, The method according to embodiment 4, further comprising: Appearance 7. The step of a computer determining the subset of topological regions from the plurality of topological regions to be used to fit the statistical shape model to the three-dimensional anatomical structure model is: The computer determines that the first matching error exceeds a threshold; The computer performs the steps of excluding a second topological region from the subset of topological regions based on the first matching error exceeding the threshold, The method according to embodiment 4, further comprising: Appearance 8. The method according to embodiment 7, further comprising the step of the com