Improved DTI Technology Based On The Property Of Deviator

The brain imaging can display the development of cerebral white matter, and the relationship between the fiber bundle and Brain tumors, etc.As an important basis for research and clinical applications,the researchers show their great interests to the reconstruction of brain fiber Diffusion Tensor Imaging(coursing together Tensor Imaging, DTI) is the only living brain fiber display technology that can be implemented, but for the cross fibers, DTI can’t display their direction. To solve this problem, based on high order partial tensor multipole theory, this article is to improve the DTI technology, and the main work content is as follows:(1)This paper expounds the principle of DTI, with the using of Maple program,it is to obtain the main direction of the second order tensor,that is to find a fiber orientation based on DTI method. With the several common DTI method,it applys the DTI Studio software visualization to study the brain structure;(2)Firstly,by illustrating the importance of solving fiber cross,it introduced the two commonly used methods of cross fiber imaging: fourth order tensor imaging and higher-order tensor imaging, and studied the two imaging methods for the resolution of the cross fiber Angle precision.Secondly, Based on the Order Partial tensor multi-polar representation proposed by professor wen-nan zou, the paper shows the higher-order partial within ten order tensor 0 and p polar diagram. According to the order of p pole figure,it can well display partial tensor multipolar direction vector, its characteristic was applied to display fibers of the brain.Given to heavy workload of obtainning the high order tensor scanning data,it haven’t been applied to clinical application, through the Maple program is compiled for second-order diffusion tensor solution of the corresponding vector, and then to get cross fibers. Using vector,according to the Maple program is compiled in Matlab software, respectively, to 90°,60°,45°,15°and 30°of the simulation data of cross fibers and single fiber imaging, can clearly and accurately show the different Angle of fiber;(3)In C and VC++ programming read DICOM(Digital Imaging and Communications in Medicine) scan files, by the Matlab software using multiplelinear regression method to construct the second-order diffusion tensor D.Through study of DTI algorithm and improved DTI algorithm, this paper suggests the applicability of the DTI method.Finally,respectively with DTI technology and the method to a real patients’ cingulate sulcus of the brain’s white matter, corpus callosum knees and insula area images,the obvious advantage of this method can b seen by comparison with image quality.The proposed method can not only be a good show to the respective cross-fiber,but also can reduce patient scan time. The proposed approach can not only well cross fiber respectively to show any Angle, at the same time can reduce the scanning time for patients, for DTI technology to develop in the direction of high precision, low consumption, human nature when provides an important theoretical basis.