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首页> 外文会议>Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE >ECG-triggering of the laser Doppler perfusion imaging signal
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ECG-triggering of the laser Doppler perfusion imaging signal

机译：激光多普勒血流灌注成像信号的ECG触发

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摘要

Laser Doppler perfusion imaging is a non-invasive system for the mapping of microvascular blood flow. To be able to investigate the influence on the signal caused by the heart synchronous wave pattern, an ECG-triggered function has been added to the system. This function allows mapping of data at fixed delay times from the R-peak. ECG-triggered laser Doppler measurements on forearm skin before and after provocation showed that the highest blood flow was recorded 200-300 ms after the R-peak. During pulsative skin blood flow the influence from the heart cycle was larger compared to low non-pulsative blood flow. With ECG-triggering, this temporal component originating from the cardiac cycle can be reduced to a minimum.
机译：激光多普勒灌注成像是一种微血管血流测绘的非侵入性系统。为了能够调查由心脏同步波形对信号产生的影响，系统中增加了ECG触发功能。此功能允许从R峰以固定的延迟时间映射数据。激发前后对前臂皮肤进行ECG触发的激光多普勒测量，结果显示在R峰后200-300 ms记录了最高的血流。在脉动性皮肤血液流动期间，与低的非脉动性血液流动相比，来自心动周期的影响更大。通过ECG触发，可以将源自心动周期的该时间分量降低到最小。

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