کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5004513 1461200 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Estimation of intra-operative brain shift based on constrained Kalman filter
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Estimation of intra-operative brain shift based on constrained Kalman filter
چکیده انگلیسی

In this study, the problem of estimation of brain shift is addressed by which the accuracy of neuronavigation systems can be improved. To this end, the actual brain shift is considered as a Gaussian random vector with a known mean and an unknown covariance. Then, brain surface imaging is employed together with solutions of linear elastic model and the best estimation is found using constrained Kalman filter (CKF). Moreover, a recursive method (RCKF) is presented, the computational cost of which in the operating room is significantly lower than CKF, because it is not required to compute inverse of any large matrix. Finally, the theory is verified by the simulation results, which show the superiority of the proposed method as compared to one existing method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: ISA Transactions - Volume 55, March 2015, Pages 260-266
نویسندگان
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