報告題目： Mathematical modeling and numerical inversion of tumor treating fields
報 告 人：龔榮芳教授 南京航空航天大學
報告時間：2023年5月 4日 10:00-11:00
報告地點：騰訊會議 ID：930-526-802
會議鍊接：https://meeting.tencent.com/dm/lwog2N4NCMwo
校内聯系人：刁懷安 diao @ jlu.edu.cn
報告摘要：In this talk, we focus on the mathematical modeling and numerical inversion of tumor treating fields (TTF) which is a relatively new tumor treatment method. Unlike many therapies such as chemotherapy and surgical treatment, TTF is non-invasive and has no side effects except slight skin irritation. As the first step of TTF, it is necessary to understand the distribution of electric field. Based on the classical Maxwell equation in electromagnetics, the mathematical model of the potential distribution in the body is established by adding electrodes on the surface to form the potential difference, and the correctness of the model is verified by COMSOL simulation. The effect of TTF mainly depends on the parameters such as the dielectric conductivity and position of the electrodes etc. With fixed the size of electrodes and voltage on the boundary of brain, the field strength required for treatment can be achieved in the body by optimizing the position of the electrodes. The particle swarm optimization method is applied to solve the reduced optimal problem for realizing the optimization of electrodes’ position. A series of numerical experiments are given for the validation of efficiency of the proposed methods.
報告人簡介：龔榮芳，南京航空航天大學伟德线上平台，教授、博士生導師，研究方向主要包括光學成像、Cauchy問題等反問題的建模、正則化理論與方法，已在Numer. Math.、Inverse Probl.、CiCP、JCM等發表學術論文近30篇。主持完成國家自然科學基金青年項目、江蘇省自然科學基金等多項。當前主持國家自然科學基金面上項目1項，參與國家面上項目和科技部“LJ”專項各1項。
