在内分泌激光激活期间的温度概况:引入热安全距离概念
Eugenio Ventimiglia1,2,3,4, Daniele Robesti5,6, Etienne Xavier Keller7,8,9
1Vita-Salute San Raffaele University, Milan, Italy. eugenio.ventimiglia@gmail.com.
World journal of urology
|July 29, 2024
概括
激光石术功率设置显著影响热量产生和组织损伤风险. 为了防止激光石术期间的热损伤,将激光功率限制在尿管中的10W和脏中的20W.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 医疗工程 医疗工程
- 激光物理 激光物理
背景情况:
- 激光石术是一种常见的结石去除手术.
- 了解激光激活期间的热分布对于患者的安全至关重要.
- 建立安全的操作参数可以最大限度地减少敏感组织的热损伤.
研究的目的:
- 在囊模型中分析激光激活的空间和时间热量分布.
- 为了确定激光纤维和健康组织之间的安全距离,在激光石术.
主要方法:
- 一个使用玻璃管管和激光激活的体外设置被开发出来.
- 一个热摄像头在不同功率和灌条件下监测温度变化.
- 热剂量计算确定了从激光纤尖端的安全距离.
主要成果:
- 更高的激光功率与温度升高正相关 (斯皮尔曼系数为0.94).
- 灌使40W的高峰温度降低了高达9.4°C的高峰温度.
- 在没有灌的情况下,在20W时观察到损伤组织的热剂量;安全距离因功率和灌而异.
结论:
- 超过10W平均功率的激光设置可能会导致热损伤,随着功率的提高而增加.
- 建议的最大功率为10W,用于尿路手术和20W,用于灌的脏手术.
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