DETECTION METHOD, DETECTION SYSTEM AND PROGRAM FOR CORTEX PERVASIVE DEPOLARIZATION

• Main Authors: INOUE TAKAO, GAJENDRA MAHAPATRA ARINDAM, SUZUKI MICHIYASU
• Format: Patent
• Language: English; Japanese
• Published: 06.10.2022
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

To provide a detection method of a cortex pervasive depolarization capable of quickly detecting a possibility in which a cortex pervasive depolarization occurs.SOLUTION: A detection method of a cortex pervasive depolarization comprises: an acquisition step for acquiring waveform data which indicates time variant change of one or more kinds of biological information which indicates at least any of a direct current component of a brain wave, hemoglobin concentration in the brain, a cerebral blood flow, and a brain temperature; a feature amount calculation step for setting a window which is set to the waveform data at a prescribed time interval, and calculating the prescribed feature amount for each window; and an event extraction step for performing threshold processing to the feature amount which is calculated in the feature amount calculation step for extracting timing at which an event occurs in which a value of the waveform data is varied temporarily following the cortex pervasive depolarization.SELECTED DRAWING: Figure 1 【課題】皮質広汎性脱分極が発生している可能性を迅速に検知することができる皮質広汎性脱分極の検知方法等を提供する。【解決手段】皮質広汎性脱分極の検知方法は、脳波の直流成分と、脳内のヘモグロビン濃度と、脳血流量と、脳温とのうち少なくともいずれかを含む１種類以上の生体情報の時間的な変化を示す波形データを取得する取得ステップと、上記波形データに対して所定の時間間隔で設定されたウィンドウを設定し、該ウィンドウごとに所定の特徴量を算出する特徴量算出ステップと、特徴量算出ステップにおいて算出された特徴量に対して閾値処理を施すことにより、皮質広汎性脱分極に伴い波形データの値が一時的に変化するイベントが発生したタイミングを抽出するイベント抽出ステップと、を含む。【選択図】図１