AR Brain-Shift Display for Computer-Assisted Neurosurgery

A neuronavigation system indicates a lesion area of a patient on preoperative medical images of the patient, and hence such medical navigations have been widely used in neurosurgeries. However, the brain deformation called brain shift causes inaccurate navigation. This paper presents a method of bra...

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Bibliographic Details
Published in2019 58th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE) pp. 1113 - 1118
Main Authors Shirai, Ryosuke, Chen, Xiaoshuai, Sase, Kazuya, Komizunai, Shunsuke, Tsujita, Teppei, Konno, Atsushi
Format Conference Proceeding
LanguageEnglish
Published The Society of Instrument and Control Engineers - SICE 01.09.2019
Subjects
Augmented reality
Brain modeling
Brain shift
Buoyancy
Cameras
Finite element method
Gravity
Head
Motion capture system
Neuronavigation
Strain
Visualization
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Summary:A neuronavigation system indicates a lesion area of a patient on preoperative medical images of the patient, and hence such medical navigations have been widely used in neurosurgeries. However, the brain deformation called brain shift causes inaccurate navigation. This paper presents a method of brain shift estimation and a way to show the deformed brain to surgeons using Augmented Reality (AR) technology. By acquiring posture information of the brain and coordinating transformation, the direction of gravitational force is determined. Infrared reflective markers are attached to a camera and human head, and the markers are tracked by a motion capture system. A computer graphics (CG) model of the deformed brain is superimposed onto the camera image.
DOI:10.23919/SICE.2019.8859884