远红外热像仪采集硬膜外麻醉热像图变化的研究

Changes of Thermal Image in Epidural Anesthesia Acquired by Far-IR Thermal Imaging System

目的:应用红外热像技术监测硬膜外麻醉前、后热图变化。方法:选择下腹部手术患者,在(T12～L1)椎间隙行硬膜外穿刺置管,采集硬膜外单次注药后红外热像图。结果:硬膜外阻滞后5 min温度色码较麻醉前上移,红外热图色码平均温度较阻滞前有显著性差异(P<0.01),在神经平面(T12～L1)、(L4～L5、S1)区域温度色码在阻滞后5 min发生明显变化。结论:硬膜外阻滞后尤其L4～L5、S1所支配的神经平面色码变化非常显著,为以往的研究结果提供了更为直观的科学依据。

Objective To investigate the changes of the thermal images in epidural anesthesia by IR thermal imaging technology. Methods Some patients undergoing lower abdominal operation were selected as the subject, who went through epidural catheterization at TI2-L1 intervertebral spaces. The IR thermal images after each epidural administration were acquired. Results The color code of temperature shifted up 5 minutes after the anesthesia, and there was significant difference for the color codes of the IR thermal images before and after the anesthesia, with P〈0.01. The color codes of temperature in the area of （T12-L1） and （L4-L5, SI） increased obviously. Conclusion The color codes of temperature of infrared imaging after epidural anesthesia have great changes, especially in the area of foot （L4-L5 and S1 plane）.