Development of laser-disk file system for the storage and analysis of analog-data acquired in physiological studies.

开发激光磁盘文件系统，用于存储和分析生理研究中获取的模拟数据。

• 批准号: 59870088
• 负责人: YAMANAKA Manabu
• 金额: $ 15.55万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1984
• 资助国家: 日本
• 起止时间: 1984 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-59870088/
• 关键词: optic disk; 脳波データベース

The data acquired in physiological studies such as EEG, ECG, EMG, and flow-volume curves are required to be kept in each hospital at least for five years. Because these data are stored in the recording sheets and have accumulated so much, it is gettig difficult every year to find a space to store them in the hospital. This study was designed to solve this problem by the use of optic disks.Our system consists of EEG recorder, analog-to-digital converter, buffer memory (16 channels, 256 KB/channel), computer (Harris H-300 A), optic disk (DF-O 400,Toshiba), intelligent display (KEL 305B,Daikin), and hard copy machine (HA 241A,Daikin).The signals from EEG machine were digitized (100 Hz, 8 bit), stored temporarily in the buffer memory (Hotta Musen), and transferred to the optic disk which was interfaced with the computer (Harris H-300 A). The signals stored in the optic disk which included 12 channels of EEG signals, one lead of ECG signal, and machine or patient status signals were displayed on the CRT by selecting appropriate commands using a stylus pen. The time required to store or recall the whole data (records of about 30 minutes duration per patient) on or from the disk took about 20 minutes. By this system it becomes possible to store the EEG data of about 3,000 patients in one disk, and search or recall any data in the disk very fast. Since our system provides a reliable database which can be used for numerical analysis of any kinds, it will become a standard method of data storage in future.

脑电图、心电图、肌电图、血流量曲线等生理研究获得的数据要求每家医院保存至少五年。由于这些数据都存储在记录表中并且积累得太多，每年在医院找到存储空间都变得越来越困难。本研究旨在通过使用光盘来解决这个问题。我们的系统由脑电图记录仪、模数转换器、缓冲存储器（16通道，256 KB/通道）、计算机（Harris H-300 A）、光盘（DF-O 400，东芝）、智能显示器（KEL 305B，大金）和硬拷贝机（HA 241A，大金）组成。 脑电图机被数字化（100 Hz，8 位），临时存储在缓冲存储器（Hotta Musen）中，并转移到与计算机（Harris H-300 A）连接的光盘上。存储在视盘中的信号包括 12 通道脑电图信号、1 导联心电图信号以及机器或患者状态信号，通过使用触控笔选择适当的命令将其显示在 CRT 上。在磁盘上存储或调用整个数据（每个患者持续约 30 分钟的记录）所需的时间大约需要 20 分钟。通过该系统，可以将大约3000名患者的脑电图数据存储在一张磁盘中，并且可以非常快速地搜索或调用磁盘中的任何数据。由于我们的系统提供了一个可靠的数据库，可用于任何类型的数值分析，因此它将成为未来数据存储的标准方法。

项目成果

Manabu, Yamanaka: "Laser-disk file system for the analogue-data acquired in physiological studies." Japanese Journal of Clinical Pathology. (1987)

Manabu，Yamanaka：“用于生理研究中获取的模拟数据的激光磁盘文件系统。”

医用電子と生体工学. 23-特別号. (1985)

医疗电子和生物工程23-特刊（1985）。

山中学: 臨床病理.

山中大学：临床病理学。