参数模型化方法提取40Hz听觉稳态诱发响应用于麻醉深度监测  

The application of the extraction of 40Hz ASSR with parametric-model method to monitoring the depth of anesthesia

作　　者：李晓[1] 陆尧胜[1] 

机构地区：[1]暨南大学电子工程系,广州市510632

出　　处：《医疗卫生装备》2005年第5期10-11,共2页Chinese Medical Equipment Journal

摘　　要：实时、有效地监测麻醉深度在临床手术中具有重要的意义,由于当今全身麻醉普遍使用肌松药,作为判断麻醉深度最主要的呼吸和体动两项指标已失去意义,从而使麻醉深度的判断愈加困难。近年来有研究表明40Hz听觉稳态诱发响应(ASSR)具有良好的麻醉深度监护特性。本文基于参数模型化方法来提取40HzASSR,相对于常规叠加平均方法来说,反应速度较快,能够迅速地跟踪病人从清醒到无意识的转变过程。It is very significative to perform real-time and effective monitor of the depth of anesthesia during the clinical operation. With the introduction of muscle-relaxing agents in general anesthesia, the two major indices to judge the depth of anesthesia have been obscured, which makes it more difficult to judge the depth of anesthesia. In recent years it has been found that 40Hz Auditory Steady State Response (ASSR) has a very good characteristic to monitor the depth of anesthesia. This article makes use of parametric-model method to extract 40Hz ASSR, which has a higher speed than Moving Time Average (MTA) when tracing the transition process of the patient from being conscious to being unconscious.

关 键 词：40Hz听觉稳态诱发响应 麻醉深度 外因输入的自回归模型 一次完成最小均方算法 

分 类 号：R614[医药卫生—麻醉学]