Three-Dimensional Cerebrovascular Reconstruction And Its Application

VISC is a kind of newly developed subject in the 1980s. It is based on computer graphics and image manipulation technology and converts the substantive calculation result into intuitionistic graphics image. One important application of VISC is medical three-dimension reconstruction which can give a visual three-dimension body nowadays.Encephalic dngioma which is also called cavernous hemangioma comes from the remnant embryo benign tumour of mesoderm cells. This disease always occurs in cerebellum but also in brain stem and spinal cord sometimes. As the disorder of encephalic dngioma is familiar with many other brain diseases, misdiagnosis is always occurred.In order to solve this problem, three-dimension reconstruction is proposed to use in encephalic dngioma diagnoses in this paper. The experimental material is a series of 451 brain images which comes from a 60 years old encephalic dngioma suffer. Firstly the difference between brain tissue and the tissues around it is widened using image progressing method. Then the boundary of the brain tissue is got using boundary tracking method and the brain tissue is cut out which is inside the boundary. The blood vessel on the upper half brain and the bone on the loewer brain is reconstructed using VTK. to make sure where the encephalic dngioma is. In the end the blood vessel itself is reconstructed to get the exact three-dimension image of encephalic dngioma.