Abstract:  Objective    To study the continuous ultra-thin slice anatomy and virtual three-dimensional model of the pelvic region in girls, to assist in anatomical research and simulated surgery.   Methods   The transverse section images were extracted from the perineum to the iliac crest area from the Digital Medical Center of Inner Mongolia Medical University. Adobe Photoshop software was used to interactively segment the region of interest from the images. Format conversion and segmentation were performed to process on the images. A digital 3D model of the region was extracted and reconstructed by using the Digihuman Reconstruction System.    Results    The high-resolution sectional anatomical images of the female pelvic region were obtained and the important structures were annotated. The digital 3D model of the virtual female pelvic region was established successfully, which accurately displayed the anatomical relationships between various structures providing a reliable three-dimensional model for pelvic surgery simulation systems.   Conclusions The virtual 3D reconstruction and visualization of the female pelvic region can display realistic and three-dimensional representation of the area and its adjacent structures, providing morphological basis for anatomy, imaging diagnosis, and virtual surgery in this region.

Key words: Pelvic part, 　Sectional anatomy, 　Three-dimensional reconstruction, 　Visible human, Preschool girls