1 results about "Posterior region" patented technology

This invention discloses an artificial intelligence-based automatic four-zone segmentation and measurement system for calcaneal fractures, relating to the field of three-dimensional image analysis technology. The method acquires the DICOM sequence of foot and ankle CT scans, converts it into NIfTI three-dimensional volume data, and performs voxel resampling, bone window normalization, and orientation standardization. A first segmentation network extracts a complete three-dimensional mask of the calcaneus, establishes a three-dimensional anatomical coordinate system, and clips the region of interest (ROI) of the calcaneus. A second segmentation network generates four-zone probability maps: the anterior region, the posterior region, the superior articular surface-related region, and the medial support region. The spatial assignment of structural blocks is determined by constraints from the complete calcaneal three-dimensional mask, connected component analysis, and the centroid and anchor point projection of the structural blocks. Finally, based on the complete calcaneal contour and the four-zone label map, geometric angles, surface height differences, the number of effective connected components, and the three-dimensional contact ratio are extracted and encapsulated into structured parameter files and quality control markers for easy three-dimensional display and image retrieval.