【摘要】 目的:探讨应用红外热像技术测量蛛网膜下腔麻醉平面的临床价值。方法:对24例择期行下腹部及下肢手术患者应用红外热像技术采集蛛网膜下腔麻醉前、后红外热像图,并进行定性、定量分析热图温度平面变化。结果:与5 min时相比,10、15、20、25、45和60 min时的针刺痛觉阻滞平面均升高;与10 min时相比,20、25和45 min时平面均升高(均P<0.05);15、60 min与10 min时平面差异无统计学意义(均P>0.05);25 min时针刺痛觉阻滞平面最高,与其他各时间点差异均有统计学意义(均P<0.05)。与麻醉前相比,麻醉各时点平均温度均升高,与麻醉后5 min相比较,25、45和60 min平均温度均升高,差异均有统计学意义(P<0.05);麻醉后10、15和20 min则没有明显变化(P>0.05)。结论:用红外热像技术测量蛛网膜下腔麻醉平面具有一定的临床实用价值。更多还原

【Abstract】 Objective:To evaluate the clinical value of infrared thermal imaging technique in detecting the block height of anesthesia.Methods: Infrared thermal images were collected from 24 patients undergoing lower abdominal and lower limb surgery before and after spinal anesthesia.Changes in thermal levels were analysed qualitatively and quantitatively.Results: Levels of sensory block obtained with infrared imaging technique were significantly higher at 10,15,20,25,45 and 60 min than that of 5 min(P < 0.05).Levels of sensory analgesia were also significantly higher at 20,25 and 45 min than that of 10 min(P < 0.05).There were no significant differences in levels of sensory block between 15,60 and 10 min(P > 0.05).The highest level of sensory block was at 25 min.The thermal levels were higher after anesthesia compared with that before anes thesia.The average thermal levels were significantly increased at 25 min,45 min and 60 min after anesthesia compared with that of 5 min(P < 0.05).There were no significant changes in average thermal levels 10 min,15 min and 20 min after anesthe sia(P > 0.05).Conclusion: The infrared thermal imaging technique can be used to measure the spinal anesthetic block lev els indirectly,which suggests some clinical application value.更多还原