Research on the bone thermal injury evaluation based on near-infrared spectroscopy in microwave ablation
In order to explore the efficacy of the real-time evaluation model of intraoperative tissue thermal damage,a method of near infrared spectroscopy was proposed to study the degree of thermal damage of bone tissue during microwave ablation.Firstly,bone tissue heating experiment was used to study the correlation between tissue thermal injury and near-infrared spectroscopy of bone tissue.Secondly,the microwave ablation experiments were designed to collect near-infrared parameters of bone tissue during microwave ablation,and the relationship between reduced scattering coefficient,slope factor,area factor and changes in bone tissue state was studied.Finally,the evaluation factors were designed and the bone tissue thermal injury assessment model based on BP network was conducted.It was found that some factors(area(500～550),slope(524～532)and slope(565～570))changed significantly,which could be used as evaluation factors of bone thermal injury.The constructed evaluation model could be used to evaluate the thermal damage of bone tissue.The research can provide important value for the evaluation system of bone tissue damage by microwave ablation.
Near infrared technologyMicrowave hyperthermiaCancellous boneEvaluation parametersOptical parametersNeural network
万方数据
维普
