نوع مقاله: مقاله کامل پژوهشی

نویسندگان

1 دانشگاه صنعتی سهند، دانشکده مهندسی برق، گروه مهندسی پزشکی

2 گروه فیزیک، دانشگاه آزاد اسلامی واحد ارومیه

10.22041/ijbme.2007.13481

چکیده

در این تحقیق، نحوه تمرکز امواج فرا صوتی به منظور گرما درمانی بافت های سرطانی مورد مطالعه قرار گرفته و عمل تراگردانی به منظور تمرکز امواج توسط سلول های پیزوالکتریک در کانون سرطان معرفی شده است. با محاسبه میزان انرژی متمرکز شده توسط حل عددی معادله فشار آکوستیک به وسیله انتگرال ریلی، مناسب ترین آرایش فضایی برای تمرکز انرژی ارایه می شود. برای کنترل مسیر درمان از طریق حل عددی معادله بیو- هیت نحوه توزیع فضایی انرژی گرمایی در ناحیه مورد درمان مورد توجه قرار گرفته و با انتخاب سرطان دهانه رحم به عنوان نمونه، نتایج حاصل از شبیه سازی تمرکز امواج فرا صوتی ارایه شده است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Transducer Design For Ultrasound-Induced Hyperthermia Of Cancerous Tissues

نویسندگان [English]

  • Farzan Ghalichi 1
  • Sohrab Behnia 2

1 Biomedical Engineering Division, Sahand University Of Technology

2 Department of Physics, Azad University of Ourmieh

چکیده [English]

The methods of focusing ultrasonic waves in order to apply hyperthermia cancer therapy have studied and a transducer capable of focusing waves on cancerous tissues with the aid of its piezoelectricelements has introduced. The amount of absorbed energy was computed by solving numerically the acoustic pressure equation using Rayleigh-Summerfield Integral, with the intention to determine the optimum spatial array of piezoelectric elements for energy concentration. In order to control the treatment procedure, the numerical solution of Bio-heat Transfer Equation (BHTE), along with the finite-element simulation of thermal energy distribution in a cervix cancerous tissue is considered.

کلیدواژه‌ها [English]

  • Ultrasonic Waves
  • Hyperthermia
  • Acoustic Pressure Equation
  • Bio-Heat Transfer Equation
  • finite element method

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