电手术过程中生物组织的功率损耗密度分布分析

2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14) Pub Date : 2014-05-01 DOI:10.1109/SSD.2014.6808854

C. Knopf, J. Himmel, F. Hochgeschurz, S. Klockner, K. Thelen, O. Kanoun

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引用次数: 2

摘要

双极电外科系统用于泌尿外科良性前列腺增生(BPH)的治疗。为了分析手术过程中的电热过程，计算了双极切除镜周围的功率损耗密度分布，计算了等渗盐水溶液中测得的电位分布。在进一步的分析中，功率损耗密度值作为Penne生物热方程的输入。为了获得尽可能真实的结果，提出了一种方法来获得功率损耗密度值，这取决于在操作场中观察到的组织或介质。应用该方法，将25°C等渗盐水溶液中的功率损耗密度分布与感兴趣区域中生物组织的平均电导率计算的分布进行了比较。

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Power loss density distribution in biological tissue to analyse processes in electrosurgery

Bipolar electrosurgical systems are used for the treatment of benign prostatic hyperplasia (BPH) in urology. In order to analyse electrothermal processes during surgery the power loss density distribution around a bipolar resectoscope is calculated out of the measured potential distribution in isotonic saline solution ex situ. During further analysis power loss density values act as input for the Penne's bioheat equation. To achieve results, which are as realistic as possible, a method to obtain power loss density values, depending on the observed tissue or medium in the operating field, is presented. Applying this method, the power loss density distribution in isotonic saline solution at 25 °C is compared to the distribution calculated for the average conductivity of biological tissue in the region of interest.

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来源期刊

2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)

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