The Study And Application Of Mediacal Imaging Visualization Based On VTK

ObjectiveUnder the vc++ environment,we use VisualizatlonToolKit to construct a three-dimensional visualization system , and realize the 3D reconstruction of CT\MRI imagings by analyzing the many algorithms of medical imaging visualization.MethodsUsing the DICOM data from the clinical CT and MRI images, based on the VTK ,we design the 3D model-building system . it include the methods and process: (1)analyzing the DICOM ,then mastering the DICOM file and the data structure.(2) the core of the visualization is 3D data ,medical body data is structured grid.(3)theVtk is based on the C++. It encapsulates many visualization algorithms. (4)we design and program the 3D reconstruction system, based on the VTK. The reading-file module read DICOM data. Surface-rendering module include MC,DC and contour. Volume-rendering module include Ray-casting and 3DtextureMapping.The VTK image-reading module read the saved files. During surface-rending, we can reconstruct different tissue model by inputing different Parameters. We can manipulate the model, such as zoom , rotating etc.Results and ConclusionWe design the 3D reconstruction system . Inputing the DICOM data ,then construct the 3D imaging model.The system can be applied in clinic ,it is the base of virtual surgery ,also it can be used in 3D-show in teaching.