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Detecting a transient ischemic attack using photoplethysmogram signals
Detecting a transient ischemic attack using photoplethysmogram signals
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机译：使用光体积描记图信号检测短暂性脑缺血发作
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摘要
Systems and methods for detecting an occurrence of a transient ischemic attack (TIA). In one embodiment, a device is utilized to measure first and second signals indicative of photoplethysmogram signals at first and second regions on the left and right sides of a user's head (PPGSL and PPGSR, respectively). A computer detects the occurrence of a TIA based on PPGSL and PPGSR that exhibit a pattern that involves the following: (i) an asymmetry between PPGSL and PPGSR, which is below a threshold, during a first period spanning more than a day; (ii) an asymmetry between PPGSL and PPGSR, which exceeds the threshold, during a second period following the first period and spanning between 5 and 180 minutes; and (iii) an asymmetry between PPGSL and PPGSR, which falls below the threshold, during a third period following the second period.
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机译：用于检测短暂性脑缺血发作（TIA）发生的系统和方法。在一个实施例中，利用一种设备来测量指示在用户的头部的左侧和右侧的第一和第二区域（PPG SL 和PPG SR < / Sub>）。计算机根据显示出涉及以下内容的模式的PPG SL 和PPG SR 检测到TIA的出现：（i）PPG SL < / Sub>和PPG SR （在超过一天的第一时间段内），该阈值低于阈值; （ii）在第一个时段之后的第二个时段内，PPG SL 和PPG SR 之间超过阈值的不对称，跨越5至180分钟; （iii）在第二个周期之后的第三个周期内，PPG SL 和PPG SR 之间的不对称性低于阈值。
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