Comparative study of thin sectional anatomical images from Chinese Visible Human data set and computed tomography images of superior mediastinum

Abstract

The structures of superior mediastinum and their spatial relationships are complex and difficult to master. This study aimed to compare visualization of the superior mediastinum based on computed tomography (CT) images and on the thin sections of the Chinese visible human (CVH) data set to provide a sectional anatomical basis for diagnostic imaging of superior mediastinal pathology. CVH sections of the mediastinum of a 35-year old male were compared with plain and enhanced CT images of a 45-year old male without apparent abnormalities in the upper chest. In addition, a three-dimensional model based on the CVH sections was compared with a model based on CT images. Although CT imaging is noninvasive and can be carried out in many individuals, its weakness is clearly the visualization of small soft tissue structures. In this respect, the sectional anatomical approach of the CVH images is complementary, as it visualizes these small soft tissue structures due to the higher resolution in the plain of sectioning and the color of the different structures in the section. Three-dimensional surface and volume rendering of reconstructions of the CVH data set can help medical students and less experienced thoracic surgeons to familiarize themselves with the topographic anatomy of the superior mediastinal structures and their spatial relationships, and thus with interpreting CT images of patients.

Modeling and simulation of an anatomy teaching system

“…A particular digital device can only obtain structural data within a finite scale range. Digital information of all required structures is also difficult to obtain through a single imaging method [7]. In this virtual anatomy teaching system, the combined application of multi-scale and multi-modal data ensures the integrity, systematization, and authenticity of the library of 3D digital models [18,19].…”

“…With the expansion of medical education and the reduction in human anatomical specimens [6], as well as the limitations of time and place for anatomical training, the quality of anatomy teaching has been seriously affected [7,8]. Given the needs of anatomy teaching, the use of virtual reality (VR) technology to construct a virtual anatomy teaching system, based on the Chinese Visible Human (CVH) dataset [9,10], could therefore provide real and reusable teaching resources for anatomy teaching [11][12][13].…”