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采用蒙特卡罗模拟方法数值求解了不同波长(1064 nm和850 nm)时的激光诱导间质肿瘤热疗(LITT)中激光能量分别在人体的肝组织和前列腺组织内的传输,分析了影响激光能量空间分布的主要因素。穿透深度是影响激光能量在半径方向上分布区域的重要参数;在轴线方向上,穿透深度和激光加入头有效发射长度都对激光能量分布区域的大小有重要影响。
The Monte Carlo simulation method was used to numerically solve the laser energy transfer in laser-induced interstitial tumor hyperthermia (LITT) at different wavelengths (1064 nm and 850 nm) in human liver tissue and prostate tissue respectively. The effects of laser The main factor of spatial distribution of energy. The penetration depth is an important parameter that affects the laser energy distribution in the radial direction. In the axial direction, the penetration depth and the effective launch length of the laser head have an important influence on the laser energy distribution area.