Abstract
Surgical workflow analysis based on videos used in the operating room is an important topic for comprehension of the surgical process, assessment of surgical skills and safety. In this paper, we study with videos of cortical mapping process in awake surgery. Cortical mapping has an impact on survival rates and avoidance of postoperative morbidity of patients and it is the most important process of awake surgery. Therefore it is valuable to extract meaningful information from videos for analysis of cortical mapping process but manual work is time-consuming. In this paper, we propose automatic detection method of electrical stimulation position that is important information for analysis of cortical mapping. The proposed method consists of two phases: detection of a probe tip position and detection of electrical stimulation timings. We evaluated our proposed method with six videos.
