کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4966135 | 1448764 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sensitivity analysis for radiofrequency induced thermal therapies using the complex finite element method
ترجمه فارسی عنوان
تجزیه و تحلیل حساسیت برای درمان های حرارتی ناشی از رادیوفرکانس با استفاده از روش المان محدود پیچیده
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کلمات کلیدی
تجزیه و تحلیل میزان حساسیت، مجموعه تیلور مجتمع گسترش، معادله انتقال گرما، فرسایش بسامد رادیویی، درمان سرطان کبد،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
Two thermal therapeutical examples, hyperthermia and ablation induced by radio frequency, are presented to illustrate the capabilities and accuracy of the method. Relative sensitivities of the temperature were computed for a broad range of parameters involved in the radiofrequency induced thermal process using ZFEM. The major feature of the method is that it enables a comprehensive evaluation of the problem sensitivities, including both model parameters and boundary conditions. The accuracy and efficiency of the method was shown to be superior to the finite difference method. The computing time of a complex finite element analysis is about 1.6 times the computing time of real finite element analysis; significantly lower than the 2 times of forward/backward finite differencing or 3 times of central differencing. It was found that the radiofrequency hyperthermia procedure is very sensitive to the electric field and temperature boundary conditions. In the case of the radiofrequency ablation procedure, the cooling temperature of the electrodes has the highest liver/tumor temperature sensitivity. Also, thermal and electrical conductivities of the healthy tissue were the properties with the highest temperature sensitivities. The result of the sensitive analysis can be used to design very robust and safe medical procedures as well as to plan specific patient procedures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Finite Elements in Analysis and Design - Volume 135, 1 November 2017, Pages 11-21
Journal: Finite Elements in Analysis and Design - Volume 135, 1 November 2017, Pages 11-21
نویسندگان
Juan F. Monsalvo, Manuel J. GarcÃa, Harry Millwater, Yusheng Feng,