MASAMUNE Ken    Department   Research Institutes and Facilities, Research Institutes and Facilities    Position   Professor
Language	Japanese
Title	Brain Function Location Estimate Method using a Standard Brain Model Integrated with Information from Previous Cases in Awake Surgery for Glioma
Conference	The 32nd Annual Congress of Japan Society of Computer Aided Surgery
Conference Type	Nationwide Conferences
Presentation Type	Speech
Lecture Type	General
Date	2023/12/03
Holding period	2023/12/01～2023/12/03
Society abstract	日本コンピュータ外科学会誌 25(3),** 2023
Summary	A successful brain tumor resection aims to maximize tumor removal rate while minimizing postoperative complications. Specifically, awake surgery requires intraoperative knowledge of the location of higher brain functions, and tumor removal must be performed with this knowledge. In this study, we propose a method to assist the primary surgeon in intraoperative brain function mapping and tumor removal by projecting the estimated locations of brain functions around the tumor from previous similar cases onto the patient. The proposed method searches for similar cases from a standard brain model that integrates brain function location and tumor location of patients in ours past cases and estimates brain function location; these locations are then projected onto the patient undergoing surgery. When searching for similar cases, preoperative or intraoperative MRIs of the target patient are integrated into a standard brain model, integrating data from previous cases using non-rigid registration. Similar cases were then searched and extracted based on tumor size and overlap ratio. The retrieved prior cases were projected onto the target patient's preoperative and intraoperative MRIs using non-rigid registration. This allowed us to estimate the functional location of the brain, which the standard brain model was projected onto the preoperative and intraoperative MRI of the surgical target. Key words：Brain tumor, Non-rigid registration, Decision-making support