3 results about "Temporal bone part" patented technology

This invention discloses a method and system for longitudinal bone mineral density prediction and high-risk window identification, belonging to the field of intelligent bone health assessment technology. Based on a large amount of localized population-based bone mineral density data assets, this invention preprocesses the data to construct a regionally adaptive dual-graph LSTM network for temporal bone mineral density prediction. It quantifies prediction uncertainty and generates confidence intervals using a Bayesian method, employs the PELT algorithm to detect bone mineral density evolution change points, and identifies the critical point of accelerated decline. By integrating prediction results, confidence intervals, and change point locations, a three-dimensional high-risk window is delineated, and personalized intervention plans are output, supporting multi-platform deployment. This invention solves the problems of inapplicability to traditional assessment standards, difficulty in capturing nonlinear changes, and insufficient prediction reliability, significantly improving the accuracy of bone mineral density prediction and the timeliness of clinical intervention. It is suitable for osteoporosis risk screening and primary healthcare management.

This invention relates to the field of medical teaching model manufacturing technology, and particularly to a biomimetic temporal bone model manufacturing method and system, comprising the following steps: S1, acquiring a three-dimensional digital model of the target anatomical site, identifying the anatomical channels of the heterogeneous structure to be constructed within the three-dimensional digital model, extracting the topological morphology and apical closed section position of the anatomical channels, and reserving an implantation operation window based on the apical closed section position; S2, calculating a preset interruption layer height based on the implantation operation window, and generating an additive manufacturing slice path file containing a suspension command triggered at the preset interruption layer height. In this invention, by implanting heterogeneous units in situ and constructing physical interfaces during the manufacturing interruption period, seamless integration of non-adhesive heterogeneous structures is achieved, thereby improving the problem that traditional models mostly use multi-material integrated printing, where thermal fusion adhesion between materials results in the inability to simulate the feel of real anatomical dissection.

This invention discloses a method and system for three-dimensional modeling of the temporal bone based on CT images, belonging to the field of image data processing technology. The method includes: using a high-resolution computer to perform tomographic scanning of the temporal bone of a target user to obtain HRCT image data; constructing three-dimensional HRCT volume data after preprocessing; inputting the data into a three-dimensional semantic segmentation network to generate a multi-class probability map; generating a semantic region mask based on the map; optimizing the geometric consistency of the three-dimensional HRCT volume data under the constraints of the mask; generating a three-dimensional mesh model of the temporal bone through three-dimensional surface reconstruction; and finally optimizing and outputting the three-dimensional model of the temporal bone. This invention solves the technical problems of difficulty in recognizing small structures and easy semantic segmentation ambiguity and geometric feature distortion during the modeling process due to the complex anatomical structure of the temporal bone. It achieves the technical effect of accurately restoring the anatomical structure of the temporal bone, improving the stability and realism of the model, and making the model highly consistent with the actual anatomical state of the human temporal bone.