title: [Study on navigation path correction in neuro-navigation based on near infrared spectroscopy].
abstract: At present, navigation path deviation caused by brain shift is the main factor that affects the accuracy of neurosurgical navigation. A new method of near infrared spectroscopy (NIRS) based neurosurgical navigation is presented in the paper. The correlation between NIRS optical parameters and medical image is used and the gray information of navigation path is regarded as the priori knowledge, sample-points curvatures are calculated by Hermite interpolation and the Mean Hausdorff distance as measurement criterion is used to match feature segments, then the real-time correction model is established. The algorithm of the given model is simple and can realize the best match within the error, it provides an effective method for real-time navigation path correction.
authors.affiliation: Department of Biomedical Engineering of Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
authors.forename: Xiaofen
authors.initials: X
authors.lastname: Zhu
authors.forename: Ling
authors.initials: L
authors.lastname: Tao
authors.forename: Zhiyu
authors.initials: Z
authors.lastname: Qian
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D002138:Calibration; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D038361:Neuronavigation / Q000379:methods*; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D025321:Surgery, Computer-Assisted / Q000379:methods*