脉冲激光致血栓的温度分布及损伤

IF 3.1 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Infrared Physics & Technology Pub Date : 2025-04-30 DOI:10.1016/j.infrared.2025.105880

Xiaoli Zhao , Pengtianyu Qiu , Enci Xie , Chenxi Zhang , Guangyu Wang , Bo Fu

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引用次数: 0

摘要

在激光热消融过程中，实时观察温度分布和损伤情况有助于指导激光溶栓过程。但在实际操作中，激光参数对血栓热效应的影响难以预测。利用有限元模拟方法研究功率、时间、光斑大小、脉宽、脉冲间隔、吸收系数、激光模式等不同激光参数对血栓表面温度和损伤的影响具有重要意义。通过实验验证了仿真中功率和时间对温度和损伤的影响，实验变化趋势与仿真结果一致。仿真结果将为后续实验中选择最佳激光参数提供理论指导。

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Temperature distribution and damage of thrombus induced by pulsed laser

In the process of laser thermal ablation, real-time observation of temperature distribution and damage is helpful to guide the laser thrombolysis process. However, in actual operation, it is difficult to predict the effect of laser parameters on the thermal effect of thrombus. It is of great significance to use finite element simulation method to study the influence of different laser parameters, such as power, time, spot size, pulse width, pulse interval, absorption coefficient, and laser mode on the surface temperature and damage of thrombus. The influence of power and time on temperature and damage in the simulation are verified by experiment, and the trend of experimental variation is consistent with the simulation results. The simulation results will provide theoretical guidance for selecting the optimal laser parameters in subsequent experiments.

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来源期刊

Infrared Physics & Technology 物理-光学

CiteScore

5.70

自引率

12.10%

发文量

400

审稿时长

67 days

期刊介绍： The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.