Multiscale electrophysiology format: an open-source electrophysiology format using data compression, encryption, and cyclic redundancy check.
Multiscale electrophysiology format: an open-source electrophysiology format using data compression, encryption, and cyclic redundancy check.
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DOI：
10.1109/iembs.2009.5332915
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Stead M
中科院分区：
文献类型：
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作者：
Brinkmann BH;Bower MR;Stengel KA;Worrell GA;Stead M
使用混合颅内电极进行连续、长期（长达 10 天）的电生理监测是一种新兴工具，用于术前癫痫评估和癫痫发作的基础研究。高频振荡和微癫痫发作的检测可以为癫痫的病因和治疗提供有价值的见解，但需要高空间和时间分辨率。我们小组目前使用的混合阵列由多达 320 个微电极和临床宏电极阵列组成，每通道采样频率为 32 kHz，A/D 分辨率为 18 位。此类记录每天会产生大约 3 TB 的数据。现有文件格式的数据压缩能力有限，并且不提供保护患者识别信息或检测传输或存储期间数据损坏的机制。我们提出了一种新颖的文件格式，它采用范围编码来提供高度的数据压缩，用于患者信息和数据安全的三层 128 位加密系统，以及用于验证压缩数据块完整性的 32 位循环冗余检查。提供了用于读取、写入和处理这些文件的开源软件。
Continuous, long-term (up to 10 days) electrophysiological monitoring using hybrid intracranial electrodes is an emerging tool for presurgical epilepsy evaluation and fundamental investigations of seizure generation. Detection of high-frequency oscillations and microseizures could provide valuable insights into causes and therapies for the treatment of epilepsy, but requires high spatial and temporal resolution. Our group is currently using hybrid arrays composed of up to 320 micro- and clinical macroelectrode arrays sampled at 32 kHz per channel with 18-bits of A/D resolution. Such recordings produce approximately 3 terabytes of data per day. Existing file formats have limited data compression capabilities, and do not offer mechanisms for protecting patient identifying information or detecting data corruption during transmission or storage. We present a novel file format that employs range encoding to provide a high degree of data compression, a three-tiered 128-bit encryption system for patient information and data security, and a 32-bit cyclic redundancy check to verify the integrity of compressed data blocks. Open-source software to read, write, and process these files are provided.