Zhijian Song

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BACKGROUND/AIMS Augmented reality (AR) technology solves the problem of view switching in traditional image-guided neurosurgery systems by integrating computer-generated objects into the actual scene. However, the state-of-the-art AR solution using head-mounted displays has not been widely accepted in clinical applications because it causes some(More)
This study examines the preventive and therapeutic effects of curcumin on brain edema after hypoxic-ischemic brain damage (HIBD) in a rat model. Male Sprague-Dawley rats were divided into four groups: a sham group (SH), a hypoxic-ischemic group (HI) without drug treatment, a hypoxic-ischemic group (CU) with curcumin injection, and a hypoxic-ischemic group(More)
BACKGROUND Brain deformation plays an important role in causing inaccuracy in image-guided neurosurgery. Three types of approaches have been proposed to solve this problem: intra-operative imaging, deformation atlas and non-rigid registration. By comparing these approaches, we here show that the non-rigid registration approach, based on a linear elastic(More)
BACKGROUND The point-pair method is widely used to register the patient space and the image space in image-guided neuro surgery. In this kind of registration, the distribution of fiducial points has a great influence on the registration accuracy at the target point. METHODS In this paper we propose the idea of target registration accuracy contribution(More)
In image-guided neurosurgery, brain tissue displacement and deformation during neurosurgical procedures are a major source of error. In this paper, we implement and evaluate a linear-elastic-model-based framework for correction of brain shift using clinical data from five brain tumor patients. The framework uses a linear elastic model to simulate(More)
Accurate pre-operative assessment of tumor grade is important for the selection of appropriate treatment strategies. The aim of this study was to retrospectively evaluate whether the fiber density index (FDi) and fractional anisotropy (FA) via diffusion tensor MRI (DTI) could assist with pre-operative diagnosis of glioma grade. A total of 31 patients who(More)
Brain retraction causes great distortion that limits the accuracy of an image-guided neurosurgery system that uses preoperative images. Therefore, brain retraction correction is an important intraoperative clinical application. We used a linear elastic biomechanical model, which deforms based on the eXtended Finite Element Method (XFEM) within a framework(More)
BACKGROUND Glycogen synthease kinase-3B is a key gene encoding a protein kinase which is abundant in brain, and is involved in signal transduction cascades of neuronal cell development and energy metabolism. Previous researches proposed GSK3B as a potential region for schizophrenia. METHOD To validate the susceptibility of GSK3B to major depressive(More)